Clarify desktop installation and first headset connection

Bump Frame Control to 0.4.16 (#148 )
Co-authored-by: SAPHID <saphid@users.noreply.github.com>
2026-10-24 17:01:40 +02:00 · 2026-10-24 07:59:16 +00:00 · 2026-10-24 07:42:37 +00:00 · 2026-10-24 07:34:34 +00:00 · 2026-10-24 07:28:26 +00:00 · 2026-10-24 07:08:23 +00:00
111 changed files with 15779 additions and 256 deletions
@@ -0,0 +1,53 @@
+name: PC host libraries
+# PC in the headset (Experimental). The Windows job builds the native adapter
+# and runs the real-encoder protocol tests; the installer's own bundle is
+# tested in release.yml. The Linux adapter from PR #38 isn't shipped or offered
+# in the app, but shares capture.c and controller.c, so it's still built here.
+# These builds add the GPL x264 encoder for headless tests only: they're never
+# uploaded or shipped.
+on:
+  pull_request:
+    paths: ["desktop/**", "ui/**", "tests/**", "scripts/macview-bench.py", ".github/workflows/pc-host.yml"]
+  workflow_dispatch:
+jobs:
+  linux:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, ubuntu-24.04-arm]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Native libraries
+        run: |
+          sudo apt-get update -qq
+          sudo apt-get install -y libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev libglib2.0-dev gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gstreamer1.0-pipewire libpipewire-0.3-modules libspa-0.2-modules
+          python3 desktop/build.py --with-x264
+      - name: Tests (real x264, fake capture consent/input)
+        env:
+          FRAME_PC_REQUIRE_NATIVE: "1"
+          FRAME_PC_REQUIRE_X264: "1"
+        run: python3 -m unittest discover -s tests -p 'test_pc*.py' -v
+  windows:
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: msys2/setup-msys2@v2
+        with:
+          msystem: UCRT64
+          update: true
+      # A mirror's HTTP 429 once failed this install (2026-10-24): retry, so a
+      # flaky mirror can't break a release build.
+      - name: MSYS2 packages for the PC host
+        shell: msys2 {0}
+        run: |
+          for attempt in 1 2 3; do
+            pacman -S --needed --noconfirm mingw-w64-ucrt-x86_64-gcc mingw-w64-ucrt-x86_64-pkgconf mingw-w64-ucrt-x86_64-python mingw-w64-ucrt-x86_64-gstreamer mingw-w64-ucrt-x86_64-gst-plugins-base mingw-w64-ucrt-x86_64-gst-plugins-good mingw-w64-ucrt-x86_64-gst-plugins-bad mingw-w64-ucrt-x86_64-gst-plugins-ugly && exit 0
+            sleep $((attempt * 30))
+          done
+          exit 1
+      - name: Native build and tests (x264; WGC and MF need a desktop/GPU)
+        shell: msys2 {0}
+        run: |
+          python desktop/build.py --with-x264
+          FRAME_PC_REQUIRE_NATIVE=1 FRAME_PC_REQUIRE_X264=1 python -m unittest discover -s tests -p 'test_pc*.py' -v
@@ -3,14 +3,14 @@ name: release
 # Pushing a v* tag builds Frame Control for macOS, Windows and Linux and attaches
 # the installers to that tag's GitHub release (created as a draft if missing).
 # Pull requests that change how the installers are built (the Electron app, the
-# macOS helper it compiles, or this workflow) build the same installers as
+# Windows PC helper libraries, the macOS helper, or this workflow) build the same installers as
 # artifacts. ui/, scripts/, frame/ and apk-catalog/ are copied in as they are and
 # are tested by the checks workflow; run this one by hand to package them early.
 on:
  push:
    tags: ["v*"]
  pull_request:
-    paths: ["app/**", "mac/frame-mac-view/**", ".github/workflows/release.yml"]
+    paths: ["app/**", "desktop/**", "mac/frame-mac-view/**", ".github/workflows/release.yml"]
  workflow_dispatch:

 # A newer push to the same pull request supersedes a build still in progress.
@@ -26,7 +26,9 @@ jobs:
  # "view || create" could race and make duplicate drafts. The draft is tied to
  # the pushed tag (the tag must already exist on GitHub, then tag_name is set
  # explicitly), so scripts/publish-release.sh and `gh release upload` find it
-  # by tag. It is created with the REST API so the id comes straight back: the
+  # by tag. Editing a draft can make GitHub show an untagged-* name again; the
+  # upload step below recovers that exact draft if tag lookup fails. It is
+  # created with the REST API so the id comes straight back: the
  # release list can lag a fresh draft (v0.4.2's first run found nothing and
  # PATCHed releases/ with an empty id). tests/test_release_workflow.py runs
  # this step against tests/fakegh.
@@ -40,8 +42,13 @@ jobs:
          GH_REPO: ${{ github.repository }}
        run: |
          tag="${GITHUB_REF_NAME}"
-          # A rerun finds the draft an earlier attempt made.
-          id=$(gh api --paginate "repos/$GH_REPO/releases?per_page=100" --jq ".[] | select(.tag_name == \"$tag\") | .id" | head -n 1)
+          # A rerun finds the draft even if GitHub temporarily shows untagged-*.
+          id=$(gh api --paginate "repos/$GH_REPO/releases?per_page=100" \
+            --jq ".[] | select(.tag_name == \"$tag\" or (.draft and (.tag_name | startswith(\"untagged-\")) and .name == \"Frame Control ${tag#v}\")) | .id")
+          if [ -n "$id" ] && ! [[ "$id" =~ ^[0-9]+$ ]]; then
+            echo "expected one release for $tag; found: $id" >&2
+            exit 1
+          fi
          if [ -z "$id" ]; then
            # Given a missing tag, GitHub would create it on the default branch.
            gh api "repos/$GH_REPO/git/ref/tags/$tag" >/dev/null \
@@ -75,6 +82,28 @@ jobs:
      - uses: actions/setup-node@v4
        with:
          node-version: "24"
+      # PC in the headset (Experimental, Windows only): our capture adapter and
+      # the GStreamer libraries it uses, bundled into resources/desktop/bundle.
+      - uses: msys2/setup-msys2@v2
+        if: runner.os == 'Windows'
+        with:
+          msystem: UCRT64
+          update: true
+      # A mirror's HTTP 429 once failed this install (2026-10-24): retry, so a
+      # flaky mirror can't break a release build.
+      - name: MSYS2 packages for the PC host
+        if: runner.os == 'Windows'
+        shell: msys2 {0}
+        run: |
+          for attempt in 1 2 3; do
+            pacman -S --needed --noconfirm mingw-w64-ucrt-x86_64-gcc mingw-w64-ucrt-x86_64-pkgconf mingw-w64-ucrt-x86_64-python mingw-w64-ucrt-x86_64-gstreamer mingw-w64-ucrt-x86_64-gst-plugins-base mingw-w64-ucrt-x86_64-gst-plugins-good mingw-w64-ucrt-x86_64-gst-plugins-bad mingw-w64-ucrt-x86_64-gst-plugins-ugly && exit 0
+            sleep $((attempt * 30))
+          done
+          exit 1
+      - name: Windows PC streaming libraries
+        if: runner.os == 'Windows'
+        shell: msys2 {0}
+        run: python desktop/build.py --out app/build/desktop/win-x64
      - name: Build
        working-directory: app
        shell: bash
@@ -95,13 +124,43 @@ jobs:
          for ($i = 0; $i -lt 60 -and -not (Test-Path (Join-Path $installed 'Uninstall Frame Control.exe')); $i++) { Start-Sleep 2 }
          node app/build/check-resources.js (Join-Path $installed 'resources') app/dist/win-unpacked/resources
          if ($LASTEXITCODE -ne 0) { exit $LASTEXITCODE }
+      # From the installed app, so this also proves the installer carries the
+      # libraries. After the check above, and without writing __pycache__,
+      # so it can't change what that check compares.
+      - name: Test the installed app's Python with the Windows PC libraries
+        if: runner.os == 'Windows'
+        shell: bash
+        env:
+          PYTHONDONTWRITEBYTECODE: "1"
+        run: |
+          resources="$(cygpath -u "$LOCALAPPDATA")/Programs/Frame Control/resources"
+          python="$resources/python/python.exe"
+          native="$(cygpath -w "$resources/desktop/bundle")"
+          FRAME_PC_NATIVE="$native" FRAME_PC_REQUIRE_NATIVE=1 FRAME_PC_INSTALLER_BUNDLE=1 "$python" -B -m unittest discover -s tests -p 'test_pc*.py' -v
      - name: Upload to the release
        if: startsWith(github.ref, 'refs/tags/')
        shell: bash
        env:
          GH_TOKEN: ${{ github.token }}
+          GH_REPO: ${{ github.repository }}
        run: |
-          gh release upload "${GITHUB_REF_NAME}" ${{ matrix.files }} --clobber
+          # A release-notes edit can make GitHub expose a draft as untagged-*.
+          # Keep the normal upload path; recover only that lookup failure.
+          if result=$(gh release upload "${GITHUB_REF_NAME}" ${{ matrix.files }} --clobber 2>&1); then
+            printf '%s\n' "$result"
+            exit 0
+          fi
+          printf '%s\n' "$result" >&2
+          case "$result" in *"release not found"*) ;; *) exit 1 ;; esac
+          tag="${GITHUB_REF_NAME}"
+          ids=$(gh api --paginate "repos/$GH_REPO/releases?per_page=100" \
+            --jq ".[] | select(.draft and .name == \"Frame Control ${tag#v}\" and (.tag_name == \"$tag\" or (.tag_name | startswith(\"untagged-\")))) | .id")
+          if ! [[ "$ids" =~ ^[0-9]+$ ]]; then
+            echo "expected one matching draft for $tag; found: ${ids:-none}" >&2
+            exit 1
+          fi
+          gh api -X PATCH "repos/$GH_REPO/releases/$ids" -f tag_name="$tag" >/dev/null
+          gh release upload "$tag" ${{ matrix.files }} --clobber
      # Tagged builds are attached to the release above; only other builds need artifacts.
      - uses: actions/upload-artifact@v4
        if: ${{ !startsWith(github.ref, 'refs/tags/') }}
@@ -7,5 +7,15 @@ compat-db/.lakebed/
 tests/smoke/results/
 mac/bin/

+# Shared desktop streaming controller build products
+desktop/controller.dll
+desktop/controller.dylib
+desktop/controller.so
+desktop/*.obj
+desktop/*.lib
+desktop/*.exp
+desktop/bundle/
+app/build/desktop/
+
 # Downloaded at build time (frame/kdeconnect/fetch.py, app/build/fetch-deps.js)
 frame/kdeconnect/packages/
@@ -0,0 +1,87 @@
+# Changelog
+
+## Unreleased
+
+- Clarify first-time desktop downloads, installation and opening on the website
+  and README, including CPU choices, unsigned-app warnings, pairing fallback
+  and the source-only iOS build. Keep section navigation available on mobile.
+
+- Treat headset aliases and other CSV metadata as plain text in power and heat
+  exports, so spreadsheet formula prefixes cannot run when a report is opened.
+
+- Add desktop Tools → Power & heat report: bounded read-only one/five-minute
+  observations with progress, stop and HTML/JSON/CSV downloads. Received samples
+  survive stop, disconnect and headset switch, labeled incomplete and tied to the
+  original headset. Shared sampler/report modules ship with the app; no power or
+  thermal controls are added. Download before replacing a report or quitting.
+
+- Fix Return to Game Mode misidentifying full Plasma Desktop Mode when its VR
+  overlay also runs gamescope (issue #142). Session targets now determine the
+  mode; conflicting or incomplete evidence stays unknown. Use SteamOS's
+  `steamosctl` switch when available, with older selector commands retained.
+
+- Export read-only power and heat observations to an offline accessible HTML
+  report with JSON/CSV downloads. `--html FILE` limits sessions to ten minutes;
+  Ctrl+C saves received samples with an explicit incomplete state. Units,
+  unknown counts and sources remain visible; no headset controls are added.
+
+- Add a guarded `frame-doctor.sh --plan` with read-only, evidence-specific next
+  steps and explicit local baseline reports for before/after diagnostics (issue
+  #34). Restart risk blocks plans/comparisons; no automatic repairs, password
+  changes or headset security changes are performed.
+
+- Recover a tagged release upload when GitHub temporarily displays its draft
+  as `untagged-…` after an edit, without creating a duplicate draft or
+  silently retrying unrelated upload failures.
+
+- Import standalone APK/OBB backups from XAPK/APKS/APKM archives through the
+  existing preview and game-data setup flow. Unsafe archives, split sets and
+  Android/data restores are refused with guidance. This does not establish RE4
+  compatibility or diagnose its reported failure (issue #102).
+
+- Add `scripts/frame-power-sample.sh`, a bounded read-only SSH sampler for
+  battery, CPU, named temperatures, fan and available power rails (issue #52).
+  JSON samples/summaries and CSV exports retain explicit unavailable states;
+  active smoke-test locks stop measurement. No power settings are changed.
+
+- Show saved Android compatibility reports on store search cards and app details.
+  Reports refresh in the background, so a stalled database or credential lookup
+  cannot delay search. Warnings allow installation; build compatibility blockers
+  still apply. Public copies use this computer's reports, not private shared ratings.
+
+- Fix two cases where optional diagnostic logs could retain part of a headset
+  display name or an SSH host name, while preserving existing privacy redaction
+  (issue #81).
+
+- Keep the full host-key recovery explanation readable in Devices, including
+  long addresses, and remove doubled punctuation from the connection tooltip
+  (issue #87). Refresh stays within the header and switching headsets selects
+  the new headset's details.
+
+- Fix experimental PC screen capture on Windows builds whose streaming libraries
+  lack Windows Graphics Capture. Whole screens use Desktop Duplication; individual
+  windows are hidden with an explanation instead of failing when shown. A Windows
+  VM streamed a real desktop to the Frame; physical input remains unverified.
+
+- Add read-only battery health in Tools: charging state, temperature, cycle count,
+  and available capacity with explicit unknown states. The parser was checked
+  on a real Frame; the connected desktop UI was tested with synthetic readings.
+
+- Add Tools → Game storage: read-only headset filesystem capacity and Steam
+  library/game install-size breakdown, with unknown sizes, partial inventories
+  and permission/missing-drive states. Includes instructions for Steam's own
+  Move UI; Frame Control does not move or delete game files. The read-only
+  parser was checked on a real Frame; the connected UI and game moves were not.
+
+- Add `scripts/frame-doctor.sh` for read-only setup and pairing diagnostics,
+  with verified SSH identity, private summaries and actionable next steps
+  (issue #34). Connection steps links to the diagnostic guide. Repairs remain
+  manual; restart-loop evidence stops deeper diagnostics. The real Frame
+  verified the SSH connection and safety stop; deeper checks were skipped.
+- Fixed headset smoke cleanup reporting success while a smoke-title process
+  could remain running after its files were removed. Cleanup now stops and
+  rechecks processes tied to exact reserved test-title paths, uses PID handles
+  for safe TERM/KILL escalation, and records stopped PIDs. Unrelated titles and
+  shared Wine services are left alone. Verified with local Linux process
+  regressions and a 13/13 real Frame smoke run that stopped five test-owned
+  Proton process PIDs before removing the Windows test title.
@@ -7,9 +7,9 @@
 **Manage your Valve Steam Frame from your computer.**<br>
 See what the headset sees, install games and Android apps, move files and text across, and check battery and status, all over SSH.

-[![Latest release](https://img.shields.io/github/v/release/saphid/steam-frame?label=release&color=1a9fff)](https://github.com/saphid/steam-frame/releases/latest)
+[![Latest release](https://img.shields.io/github/v/release/saphid/frame-control?label=release&color=1a9fff)](https://github.com/saphid/frame-control/releases/latest)
 [![Platforms](https://img.shields.io/badge/macOS%20%7C%20Windows%20%7C%20Linux-2a475e?label=runs%20on)](#install)
-[![Checks](https://img.shields.io/github/actions/workflow/status/saphid/steam-frame/checks.yml?branch=main&label=checks)](https://github.com/saphid/steam-frame/actions/workflows/checks.yml)
+[![Checks](https://img.shields.io/github/actions/workflow/status/saphid/frame-control/checks.yml?branch=main&label=checks)](https://github.com/saphid/frame-control/actions/workflows/checks.yml)
 [![License: MIT](https://img.shields.io/badge/license-MIT-66c0f4)](LICENSE)

 [**Website**](https://frame-control.pages.dev) · [**Download**](#install) · [Trailer](#trailer) · [Features](#features) · [Set up the headset](#set-up-the-headset) · [Feedback](#feedback) · [Docs](#going-further)
@@ -19,7 +19,7 @@ See what the headset sees, install games and Android apps, move files and text a
 <img src="docs/img/frame-control.png" alt="Frame Control's Games tab: installed games, sideloaded titles, and your Steam library with Frame ratings" width="900">

 <a id="trailer"></a>
-<a href="https://github.com/saphid/steam-frame/releases/download/trailer/frame-control-trailer.mp4"><img src="docs/img/trailer.jpg" alt="Watch the Frame Control trailer" width="900"></a>
+<a href="https://github.com/saphid/frame-control/releases/download/trailer/frame-control-trailer.mp4"><img src="docs/img/trailer.jpg" alt="Watch the Frame Control trailer" width="900"></a>

 <sub>The trailer: 66 seconds, with sound. Downloads the MP4 from the trailer release.</sub>

@@ -44,6 +44,9 @@ Live video of what the lenses show, or of the app panel in use, flat and still h
 **🔋 Battery and status**<br>
 Charge, charging watts and time left, storage, memory, temperature, Wi-Fi, and what's running.

+For repeatable read-only battery, power-rail, temperature and fan measurements,
+use the [power and heat sampler](docs/power-and-heat.md).
+
 </td>
 </tr>
 <tr>
@@ -89,6 +92,14 @@ Install desktop apps like Moonlight or VLC, and set each Android app's resolutio
 **⚡ One-click tools**<br>
 SSH, SFTP, Steam Link, remote desktop, volume, sleep, restart and shut down.

+</td>
+</tr>
+<tr>
+<td colspan="2" valign="top">
+
+**💾 Backup and recovery**<br>
+Copy game saves, settings and Android app data to your computer, and restore them after a factory reset. Sign-in files and keys are never copied. A Return to Game Mode button helps when the headset is stuck in Desktop Mode. Not tested on a headset yet. [How it works](docs/backup-and-recovery.md).
+
 </td>
 </tr>
 </table>
@@ -105,17 +116,30 @@ already ships (sideloading a game copies Valve's own devkit scripts to

 ## Install

+**Install Frame Control on your computer, not on the headset.** The website is
+for downloads and instructions; it does not connect to your Frame in a browser.
+Choose the operating system and processor of the computer you will use.
+
 | | Download | Needs |
 |---|---|---|
-| **macOS** (Apple Silicon) | [Frame-Control-mac-arm64.dmg](https://github.com/saphid/steam-frame/releases/latest/download/Frame-Control-mac-arm64.dmg) | Nothing extra |
-| **Windows** 10 / 11 (x64) | [Frame-Control-Setup-x64.exe](https://github.com/saphid/steam-frame/releases/latest/download/Frame-Control-Setup-x64.exe) · [portable .zip](https://github.com/saphid/steam-frame/releases/latest/download/Frame-Control-win-x64.zip) | Nothing extra |
-| **Linux** (x64) | [AppImage](https://github.com/saphid/steam-frame/releases/latest/download/Frame-Control-linux-x86_64.AppImage) · [.deb](https://github.com/saphid/steam-frame/releases/latest/download/Frame-Control-linux-amd64.deb) | `ssh` (most desktops have it) |
-| **Linux** (arm64) | [AppImage](https://github.com/saphid/steam-frame/releases/latest/download/Frame-Control-linux-arm64.AppImage) · [.deb](https://github.com/saphid/steam-frame/releases/latest/download/Frame-Control-linux-arm64.deb) | `ssh`, and `adb` for Android apps (`sudo apt install adb`) |
+| **macOS** (Apple Silicon) | [Frame-Control-mac-arm64.dmg](https://github.com/saphid/frame-control/releases/latest/download/Frame-Control-mac-arm64.dmg) | Nothing extra |
+| **Windows** 10 / 11 (x64) | [Frame-Control-Setup-x64.exe](https://github.com/saphid/frame-control/releases/latest/download/Frame-Control-Setup-x64.exe) · [portable .zip](https://github.com/saphid/frame-control/releases/latest/download/Frame-Control-win-x64.zip) | OpenSSH Client (normally installed) |
+| **Linux** (x64) | [AppImage](https://github.com/saphid/frame-control/releases/latest/download/Frame-Control-linux-x86_64.AppImage) · [.deb](https://github.com/saphid/frame-control/releases/latest/download/Frame-Control-linux-amd64.deb) | `ssh` (most desktops have it) |
+| **Linux** (arm64) | [AppImage](https://github.com/saphid/frame-control/releases/latest/download/Frame-Control-linux-arm64.AppImage) · [.deb](https://github.com/saphid/frame-control/releases/latest/download/Frame-Control-linux-arm64.deb) | `ssh`, and `adb` for Android apps (`sudo apt install adb`) |

-**iPhone and iPad:** the same features from your phone, with nothing to install on
-a computer. Build it from [`ios/`](ios) in Xcode; see [docs/iphone.md](docs/iphone.md).
+**Which build?** On a Mac, check Apple menu → About This Mac: the download is
+for Apple Silicon (M-series); no Intel Mac build is published. On Windows,
+check Settings → System → About → System type: the release is x64, not a native
+Windows ARM build. On Linux, `uname -m` reports `x86_64` (x64) or `aarch64`
+(arm64). Use `.deb` on Debian/Ubuntu, or AppImage on other distributions.

-The app brings its own Python and `adb`; SSH is built into macOS and Windows.
+**iPhone and iPad:** no App Store, TestFlight or `.ipa` download is provided in
+the current release. It runs from your phone without a computer after setup.
+Build it from [`ios/`](ios) in Xcode on a Mac with your own signing team; see
+[docs/iphone.md](docs/iphone.md).
+
+The app brings its own Python and `adb`. macOS includes SSH; Windows needs the
+OpenSSH Client optional feature (normally installed).
 From 0.4 it updates itself: when a new version is published, a banner offers
 **Update and restart**. It sends anonymous usage statistics, which you can turn
 off. Sharing compatibility results and error details is opt-in. See
@@ -128,7 +152,7 @@ distribution's. If you already have `adb`, the app uses yours.

 There's no paid Apple developer account behind it, so macOS says the app is
 damaged or can't be checked. Drag it to Applications, then clear the download
-quarantine once:
+quarantine once, only for a download you trust from the releases linked above:

 ```sh
 xattr -dr com.apple.quarantine "/Applications/Frame Control.app"
@@ -157,26 +181,44 @@ If it complains about FUSE, install `libfuse2` (Ubuntu 24.04+: `libfuse2t64`),
 or run it with `--appimage-extract-and-run`.
 </details>

+## Open the app
+
+- **macOS:** open the `.dmg`, drag **Frame Control** to **Applications**, then
+  open it from Applications. For the unsigned-app warning, use the macOS steps
+  above. Allow local network access and control of Terminal when prompted.
+- **Windows:** run the installer, then open **Frame Control** from Start. For
+  the portable download, extract the entire `.zip` first and run
+  `Frame Control.exe` inside it. See the SmartScreen note above.
+- **Linux:** install the `.deb` with your package installer and launch
+  **Frame Control** from your applications menu; or make the AppImage executable
+  and run it as described above. Install the OpenSSH client if `ssh` is missing.
+
 ## Set up the headset

-You type one password on the headset, once. Everything else happens on your
-computer.
+Keep the Frame awake and connect it and your computer to the same trusted local
+network. Guest Wi-Fi/client isolation can prevent discovery and connections.

 1. **On the Frame:** Steam Settings → System → **Enable Developer Mode**, then
-   in the Developer section, **Set User Password**. Pick something short:
-   you'll type it once more on your computer and then never again.
-2. **On your computer:** open Frame Control. It offers to **Set Up
-   Connection**, which finds the headset, creates an SSH key, and asks for that
-   password once in a terminal window. If it can't find the Frame, type the
-   IP address from the Frame's Quick Settings.
-
-   Before asking for the password it tries Valve's SteamOS devkit pairing: in
-   the headset, open Steam Settings → Developer → **Pair new host** and approve
-   the request, and no password is needed. (The service and the pairing-mode
-   step are verified on a Frame; the approval itself isn't yet. See
-   [SSH](docs/ssh.md#password-free-pairing-steamos-devkit-service).)
-3. That's it. The app now reaches the headset whenever it's awake and on the
-   same network. For anywhere else, see [Tailscale](docs/tailscale.md).
+   Developer → **Set User Password**. Choose a password that isn't easy to guess:
+   it also protects `sudo` and remote desktop, even after SSH keys are set up.
+2. **On your computer:** open Frame Control and choose **Set Up Connection…**.
+   If you dismissed the first-run prompt, use **Frame → Set Up Connection…**.
+   Setup opens a terminal and tries to find the headset. If it can't, use its IP
+   address from Quick Settings or Steam Settings → Internet. Windows/Linux setup
+   prompts for it; macOS exits instead. On macOS, return to the app →
+   **Devices & connection → + Add a headset…**, set SSH alias to `frame` for
+   the default headset, fill in **Address**, then choose **Set Up…**.
+3. **Pair or enter the password:** setup first tries Valve's devkit pairing.
+   Open Steam Settings → Developer → **Pair new host** in the headset and approve
+   only the request you just started. The service and pairing-mode step are
+   verified on a Frame; approval and key installation through that flow remain
+   unverified. If pairing fails or times out, setup falls back to asking for the
+   Developer Mode password in the computer's terminal. Password typing may show
+   no characters; press Enter when done. See [SSH details](docs/ssh.md#password-free-pairing-steamos-devkit-service).
+4. After setup succeeds, return to Frame Control. It uses SSH keys for later
+   connections whenever the Frame is awake and reachable. If it stays offline,
+   check Developer Mode, the address and network isolation, then run setup again.
+   For connections away from home, see [Tailscale](docs/tailscale.md).

 **What it changes:** only what you click. Installs go to your user account on
 the Frame (`--user` Flatpaks, Lepton instances, Steam downloads, sideloaded
@@ -218,12 +260,14 @@ Frame's software fits together, all checked against a real headset and labelled
 | [Sideloading Linux and Windows games](docs/sideloading.md) | A .zip, folder or .exe as a Steam Devkit Game, runtime detection |
 | [Install links for websites](docs/web-install.md) | `frame-control://install` links and manifests, the rules, a button to paste |
 | [VR comfort and HUD](docs/vr-utilities.md) · [Steam games](docs/steam-games.md) · [VR video](docs/vr-video.md) · [WebXR in Chromium](docs/webxr-chromium.md) | Installing and buying, watching VR180/360, the Chromium build |
+| [PC in the headset](docs/pc-in-headset.md) | Experimental, Windows only, off until you turn it on: a whole PC screen as a panel in the Frame. Tested in a Windows VM; individual windows need a WGC-enabled build |
 | [Mac in the headset](docs/mac-in-headset.md) | Mac windows and screens as panels in the Frame, with laser and keyboard input |
 | [VR mods and custom songs](docs/mods.md) | UEVR for Unreal games from Frame Control (install, play in VR, remove), the per-game table, Beat Saber blockers |
 | [SSH](docs/ssh.md) · [Streaming](docs/streaming.md) · [Files](docs/file-transfer.md) · [Panels](docs/panels.md) · [Tailscale](docs/tailscale.md) | Topic notes |
 | [Frame Control for iPhone](docs/iphone.md) | The iPhone and iPad app, how it runs the server on the Frame, pairing |
 | [Recovery and OS images](docs/recovery-and-images.md) | Where to download the Frame's OS, what's inside, testing without the headset |
 | [AI agents and assistant](docs/agents.md) | Key-free MCP tools, human approvals, and an opt-in assistant panel |
+| [Power and heat measurements](docs/power-and-heat.md) | Read-only sampling and offline HTML reports with JSON/CSV downloads |
 | [Testing](docs/testing.md) | Unit tests, end-to-end tests against a fake Frame in Docker, the headset smoke test and a Windows test VM |
 | [Open questions](docs/open-questions.md) | What's still unchecked |

@@ -239,8 +283,8 @@ Frame's software fits together, all checked against a real headset and labelled
  loopback `127.0.0.1:8080`) only through SSH tunnels. The compatibility
  database key (maintainer-only) is never written to the repo.
 - `steamos` has `sudo`, protected by the same Developer Mode password. Once
-  you've switched to key auth, a short password still protects `sudo` and
-  RDP, so pick one that isn't trivially guessable.
+  you've switched to key auth, that password still protects `sudo` and RDP,
+  so pick one that isn't trivially guessable.
 - Don't port-forward 22, 3389, or 5555–5599 from your router. For remote access,
  use Tailscale: `scripts/tailscale-on-frame.sh` (no sudo). In its userspace mode
  **every** Frame port is reachable from your tailnet, including Steam's DevTools
@@ -266,3 +310,5 @@ into a draft release, which reaches users once published. See
 licence, notably KDE Connect (GPL) for the keyboard and trackpad; see
 [THIRD_PARTY_NOTICES.md](THIRD_PARTY_NOTICES.md). Steam, Steam Frame and SteamVR are trademarks of Valve
 Corporation. This project isn't affiliated with or endorsed by Valve.
+
+See [Game storage](docs/game-storage.md) for read-only headset space and Steam install sizes, and [the changelog](CHANGELOG.md) for unreleased changes.
@@ -10,6 +10,8 @@ ship other people's software, unchanged, each under its own licence:
 | adb (Android SDK Platform-Tools) | Desktop apps (not Linux arm64) | Apache-2.0 and others | `NOTICE.txt` in the app's `tools` folder |
 | Mozilla's CA certificate list, as published by curl | Desktop apps | MPL-2.0 | https://curl.se/docs/caextract.html |
 | Electron | Desktop apps | MIT (Chromium: BSD-3-Clause and others) | `LICENSE` and `LICENSES.chromium.html` in the app |
+| GStreamer 1.x, a few of its plugins and the libraries they need, as [MSYS2](https://packages.msys2.org/) builds them | Windows app only, for the experimental [PC in the headset](docs/pc-in-headset.md) | LGPL-2.1-or-later and others (per package); the GPL x264 encoder is left out | `libraries.json` (exact package versions) and the `licenses` folder in the app's `desktop/bundle` folder |

 Frame Control starts KDE Connect and talks to it over its network protocol;
-it doesn't link to it or include its code.
+it doesn't link to it or include its code. On Windows, Frame Control's own
+`pc-host.dll` links to GStreamer dynamically; the libraries are unmodified.
@@ -13,6 +13,10 @@ const path = require("path");

 const REQUIRED = [
  "ui/server.py",
+  "ui/frame_power.py",
+  "ui/frame_status.py",
+  "scripts/frame_power_sample.py",
+  "scripts/frame_power_report.py",
  "ui/frame_android.py",
  "frame/android/lepton-app.sh",
  "frame/openxr-compat/XrApiLayer_FRAME_compat.json",
@@ -1,12 +1,12 @@
 {
  "name": "frame-control",
-  "version": "0.4.9",
+  "version": "0.4.16",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "frame-control",
-      "version": "0.4.9",
+      "version": "0.4.16",
      "license": "MIT",
      "devDependencies": {
        "electron": "^44.4.5",
@@ -1,7 +1,7 @@
 {
  "name": "frame-control",
  "productName": "Frame Control",
-  "version": "0.4.9",
+  "version": "0.4.16",
  "description": "Desktop app for managing a Valve Steam Frame over SSH",
  "private": true,
  "main": "main.js",
@@ -68,7 +68,9 @@
        "from": "../scripts",
        "to": "scripts",
        "filter": [
-          "*.sh"
+          "*.sh",
+          "frame_power_sample.py",
+          "frame_power_report.py"
        ]
      },
      {
@@ -198,7 +200,16 @@
        "zip"
      ],
      "icon": "build/icon.png",
-      "artifactName": "Frame-Control-win-${arch}.${ext}"
+      "artifactName": "Frame-Control-win-${arch}.${ext}",
+      "extraResources": [
+        {
+          "from": "build/desktop/${os}-${arch}",
+          "to": "desktop/bundle",
+          "filter": [
+            "**/*"
+          ]
+        }
+      ]
    },
    "nsis": {
      "oneClick": false,
@@ -1,7 +1,7 @@
 // Client choices live outside the local server's changing URL/origin.
 const fs = require("node:fs");
 const path = require("node:path");
-const KEYS = ["mvSeparate", "padUsed"];
+const KEYS = ["mvSeparate", "padUsed", "pcView"];
 const valid = value => value === "0" || value === "1";

 function preferenceStore(file) {
@@ -36,7 +36,7 @@ test("client choices survive a new native session and local server origin", t =>
  assert.deepEqual(first.read(), { mvSeparate: "1", padUsed: "1" });
 });

-test("only the two non-sensitive binary choices can enter the native store", t => {
+test("only the non-sensitive binary choices can enter the native store", t => {
  const file = fixture(t), store = preferenceStore(file);
  for (const [key, value] of [["token", "secret"], ["__proto__", "1"], ["padUsed", true], ["mvSeparate", "yes"]]) {
    assert.throws(() => store.write(key, value), /Invalid preference/);
@@ -58,3 +58,11 @@ test("a missing or damaged preference file retains usable defaults", t => {
  store.write("padUsed", "1");
  assert.deepEqual(store.read(), { padUsed: "1" });
 });
+
+test("the PC in the headset opt-in is remembered and off unless saved", t => {
+  const file = fixture(t), store = preferenceStore(file);
+  assert.equal(store.read().pcView, undefined);
+  store.write("pcView", "1");
+  assert.deepEqual(preferenceStore(file).read(), { pcView: "1" });
+  assert.throws(() => store.write("pcView", "on"), /Invalid preference/);
+});
@@ -0,0 +1,311 @@
+{
+ "label": "pc-agent-frame-arm64-hairpin",
+ "date": "2026-09-28T22:36:19",
+ "commit": "c5fc552+dirty",
+ "config": {
+  "quality": "balanced",
+  "mode": "separate",
+  "net": "none",
+  "delay_ms": 0,
+  "buffer_ms": 250,
+  "host": "frame",
+  "usb": false,
+  "ssh_opts": [],
+  "encoder": "",
+  "duration_s": 10.0,
+  "browser_flags": []
+ },
+ "frame_build": "20260925.6191901",
+ "mac": "26.5.2",
+ "host_platform": "Linux aarch64, SteamOS Frame, BUILD_ID 20260925.6191901 (synthetic host only)",
+ "source": "",
+ "pc_host": true,
+ "headset": "0:03.056203 [Info] - 1 - leaving standby",
+ "scenarios": [
+  {
+   "scenario": "test",
+   "frames_sent": 351,
+   "frames_drawn": 351,
+   "frames_shown": 324,
+   "duration_s": 10.1,
+   "stages_ms": {
+    "capture": {
+     "p50": 0.1,
+     "p95": 0.2,
+     "p99": 0.5,
+     "n": 351
+    },
+    "queue": {
+     "p50": 0.1,
+     "p95": 0.3,
+     "p99": 0.4,
+     "n": 351
+    },
+    "encode": {
+     "p50": 2.0,
+     "p95": 2.9,
+     "p99": 3.5,
+     "n": 351
+    },
+    "socket": {
+     "p50": 0.1,
+     "p95": 0.4,
+     "p99": 0.6,
+     "n": 351
+    },
+    "network": {
+     "p50": 11.6,
+     "p95": 75.7,
+     "p99": 130.1,
+     "n": 351
+    },
+    "decode": {
+     "p50": 0.7,
+     "p95": 2.1,
+     "p99": 4.1,
+     "n": 351
+    },
+    "draw": {
+     "p50": 0.4,
+     "p95": 0.8,
+     "p99": 1.1,
+     "n": 351
+    },
+    "present": {
+     "p50": 0.8,
+     "p95": 18.1,
+     "p99": 24.9,
+     "n": 324
+    },
+    "content": {
+     "p50": 15.1,
+     "p95": 80.3,
+     "p99": 134.2,
+     "n": 351
+    },
+    "content_shown": {
+     "p50": 21.0,
+     "p95": 71.8,
+     "p99": 146.3,
+     "n": 324
+    }
+   },
+   "fps": 34.8,
+   "fps_shown": 32.0,
+   "late_pct": 53.41,
+   "stall_max": 226.8,
+   "stalls_over_100ms": 7,
+   "mbps": 0.26,
+   "keyframes": 6,
+   "size": "1280x720",
+   "captured": 607,
+   "viewer_never_drawn": 0,
+   "input_ms": {
+    "p50": 43.3,
+    "p95": 98.4,
+    "p99": 110.1,
+    "n": 18
+   },
+   "input_shown_ms": {
+    "p50": 54.7,
+    "p95": 98.9,
+    "p99": 114.0,
+    "n": 18
+   },
+   "input_parts_ms": {
+    "uplink": {
+     "p50": 17.1,
+     "p95": 48.3,
+     "p99": 53.1,
+     "n": 18
+    },
+    "mac": {
+     "p50": 12.5,
+     "p95": 32.9,
+     "p99": 35.7,
+     "n": 18
+    },
+    "back": {
+     "p50": 16.8,
+     "p95": 50.0,
+     "p99": 55.9,
+     "n": 18
+    }
+   },
+   "inputs": {
+    "asked": 18,
+    "sent": 18,
+    "seen": 18
+   },
+   "timeline": [
+    {
+     "t": 0,
+     "fps": 38,
+     "mbps": 0.3,
+     "content_p50": 14.8,
+     "content_p95": 25.3,
+     "bitrate": 2764800,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 1,
+     "fps": 33,
+     "mbps": 0.24,
+     "content_p50": 15.6,
+     "content_p95": 103.5,
+     "bitrate": 3845448,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 2,
+     "fps": 39,
+     "mbps": 0.28,
+     "content_p50": 15.6,
+     "content_p95": 29.9,
+     "bitrate": 5283790,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 3,
+     "fps": 25,
+     "mbps": 0.21,
+     "content_p50": 17.8,
+     "content_p95": 175.9,
+     "bitrate": 2764800,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 4,
+     "fps": 34,
+     "mbps": 0.22,
+     "content_p50": 15.4,
+     "content_p95": 69.8,
+     "bitrate": 2764800,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 5,
+     "fps": 38,
+     "mbps": 0.29,
+     "content_p50": 17.7,
+     "content_p95": 68.7,
+     "bitrate": 2764800,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 6,
+     "fps": 38,
+     "mbps": 0.26,
+     "content_p50": 15.0,
+     "content_p95": 18.2,
+     "bitrate": 3091280,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 7,
+     "fps": 30,
+     "mbps": 0.22,
+     "content_p50": 19.2,
+     "content_p95": 111.0,
+     "bitrate": 1725204,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 8,
+     "fps": 35,
+     "mbps": 0.26,
+     "content_p50": 13.4,
+     "content_p95": 102.6,
+     "bitrate": 1725204,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 9,
+     "fps": 38,
+     "mbps": 0.28,
+     "content_p50": 12.3,
+     "content_p95": 20.9,
+     "bitrate": 1725204,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 10,
+     "fps": 3,
+     "mbps": 0.02,
+     "content_p50": 20.9,
+     "content_p95": 24.7,
+     "bitrate": 1725204,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    }
+   ],
+   "adapt": [],
+   "content_p50": 15.1,
+   "content_p95": 80.3,
+   "input_p50": 43.3,
+   "input_p95": 98.4,
+   "grades": {
+    "input_replies": "local",
+    "content_p50": "local",
+    "content_p95": "acceptable",
+    "input_p50": "local",
+    "input_p95": "acceptable",
+    "fps": "bad",
+    "late_pct": "bad",
+    "stall_max": "acceptable"
+   },
+   "controller": {
+    "target": 3442081,
+    "ceiling": 5529600,
+    "tier": 0,
+    "fps": 60,
+    "scale": 1.0,
+    "baseRtt": 13.334,
+    "inFlight": 1,
+    "slack": 71.738,
+    "adapt": true
+   },
+   "events": [
+    {
+     "t": 3.77,
+     "e": "target 2764800 bit/s; tier 0"
+    },
+    {
+     "t": 7.42,
+     "e": "target 1725204 bit/s; tier 0"
+    }
+   ],
+   "source_fps": 60.1,
+   "cpu": {
+    "host": "not sampled"
+   },
+   "viewer": "h264 software; ANGLE (Mesa, zink Vulkan 1.4(Turnip Adreno (TM) 750 (MESA_TURNIP)), OpenGL 4.6); raf 71 Hz",
+   "show_s": 1.88,
+   "panel": "valve.steam.desktopgame.2001932457",
+   "src": "test",
+   "route": "network"
+  }
+ ],
+ "proof": "Synthetic x264 PC agent runs on the Frame itself, forwarded via Mac and back. Not Windows/Linux desktop capture or laser input."
+}
@@ -0,0 +1,302 @@
+{
+ "label": "pc-agent-frame-arm64-final",
+ "date": "2026-09-28T22:55:27",
+ "commit": "cd20243",
+ "config": {
+  "quality": "balanced",
+  "mode": "native",
+  "net": "none",
+  "delay_ms": 0,
+  "buffer_ms": 250,
+  "host": "frame",
+  "usb": false,
+  "ssh_opts": [],
+  "encoder": "",
+  "duration_s": 10.0,
+  "browser_flags": []
+ },
+ "frame_build": "20260925.6191901",
+ "mac": "26.5.2",
+ "host_platform": "Linux aarch64, SteamOS Frame, BUILD_ID 20260925.6191901 (synthetic host only)",
+ "source": "",
+ "pc_host": true,
+ "headset": "0:03.056203 [Info] - 1 - leaving standby",
+ "scenarios": [
+  {
+   "scenario": "test",
+   "frames_sent": 400,
+   "frames_drawn": 400,
+   "frames_shown": 339,
+   "duration_s": 10.2,
+   "stages_ms": {
+    "capture": {
+     "p50": 0.1,
+     "p95": 0.1,
+     "p99": 0.2,
+     "n": 400
+    },
+    "queue": {
+     "p50": 0.1,
+     "p95": 0.2,
+     "p99": 0.4,
+     "n": 400
+    },
+    "encode": {
+     "p50": 2.0,
+     "p95": 2.7,
+     "p99": 3.1,
+     "n": 400
+    },
+    "socket": {
+     "p50": 0.1,
+     "p95": 0.3,
+     "p99": 0.4,
+     "n": 400
+    },
+    "network": {
+     "p50": 11.8,
+     "p95": 25.2,
+     "p99": 37.8,
+     "n": 400
+    },
+    "decode": {
+     "p50": 0.7,
+     "p95": 1.5,
+     "p99": 2.0,
+     "n": 400
+    },
+    "draw": {
+     "p50": 0.3,
+     "p95": 0.7,
+     "p99": 1.0,
+     "n": 400
+    },
+    "present": {
+     "p50": 0.8,
+     "p95": 19.3,
+     "p99": 26.8,
+     "n": 339
+    },
+    "content": {
+     "p50": 15.1,
+     "p95": 28.6,
+     "p99": 41.3,
+     "n": 400
+    },
+    "content_shown": {
+     "p50": 17.6,
+     "p95": 39.0,
+     "p99": 47.2,
+     "n": 339
+    }
+   },
+   "fps": 39.3,
+   "fps_shown": 33.4,
+   "late_pct": 50.25,
+   "stall_max": 69.3,
+   "stalls_over_100ms": 0,
+   "mbps": 0.35,
+   "keyframes": 6,
+   "size": "1280x720",
+   "captured": 612,
+   "viewer_never_drawn": 0,
+   "input_ms": {
+    "p50": 76.6,
+    "p95": 98.2,
+    "p99": 127.8,
+    "n": 19
+   },
+   "input_shown_ms": {
+    "p50": 80.5,
+    "p95": 107.8,
+    "p99": 128.1,
+    "n": 16
+   },
+   "input_parts_ms": {
+    "uplink": {
+     "p50": 36.5,
+     "p95": 57.6,
+     "p99": 83.2,
+     "n": 19
+    },
+    "mac": {
+     "p50": 14.6,
+     "p95": 31.3,
+     "p99": 31.7,
+     "n": 19
+    },
+    "back": {
+     "p50": 15.1,
+     "p95": 32.8,
+     "p99": 36.2,
+     "n": 19
+    }
+   },
+   "inputs": {
+    "asked": 19,
+    "sent": 19,
+    "seen": 19
+   },
+   "timeline": [
+    {
+     "t": 0,
+     "fps": 40,
+     "mbps": 0.34,
+     "content_p50": 11.7,
+     "content_p95": 27.4,
+     "bitrate": 5529600,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 1,
+     "fps": 39,
+     "mbps": 0.37,
+     "content_p50": 11.9,
+     "content_p95": 28.2,
+     "bitrate": 5529600,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 2,
+     "fps": 41,
+     "mbps": 0.35,
+     "content_p50": 11.4,
+     "content_p95": 16.6,
+     "bitrate": 5529600,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 3,
+     "fps": 39,
+     "mbps": 0.37,
+     "content_p50": 12.7,
+     "content_p95": 28.0,
+     "bitrate": 5529600,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 4,
+     "fps": 38,
+     "mbps": 0.33,
+     "content_p50": 15.3,
+     "content_p95": 30.0,
+     "bitrate": 5529600,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 5,
+     "fps": 39,
+     "mbps": 0.37,
+     "content_p50": 16.7,
+     "content_p95": 28.5,
+     "bitrate": 5529600,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 6,
+     "fps": 41,
+     "mbps": 0.38,
+     "content_p50": 15.9,
+     "content_p95": 29.4,
+     "bitrate": 5529600,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 7,
+     "fps": 41,
+     "mbps": 0.31,
+     "content_p50": 15.6,
+     "content_p95": 28.2,
+     "bitrate": 5529600,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 8,
+     "fps": 38,
+     "mbps": 0.38,
+     "content_p50": 15.5,
+     "content_p95": 25.9,
+     "bitrate": 5529600,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 9,
+     "fps": 38,
+     "mbps": 0.29,
+     "content_p50": 16.7,
+     "content_p95": 28.8,
+     "bitrate": 5529600,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    },
+    {
+     "t": 10,
+     "fps": 6,
+     "mbps": 0.03,
+     "content_p50": 17.6,
+     "content_p95": 23.1,
+     "bitrate": 5529600,
+     "tier": 0,
+     "w": 1280,
+     "net": null
+    }
+   ],
+   "adapt": [],
+   "content_p50": 15.1,
+   "content_p95": 28.6,
+   "input_p50": 76.6,
+   "input_p95": 98.2,
+   "grades": {
+    "input_replies": "local",
+    "content_p50": "local",
+    "content_p95": "local",
+    "input_p50": "acceptable",
+    "input_p95": "acceptable",
+    "fps": "bad",
+    "late_pct": "bad",
+    "stall_max": "local"
+   },
+   "controller": {
+    "target": 5529600,
+    "ceiling": 5529600,
+    "tier": 0,
+    "fps": 60,
+    "scale": 1.0,
+    "baseRtt": 12.332,
+    "inFlight": 0,
+    "slack": 74.12,
+    "adapt": true
+   },
+   "events": [],
+   "source_fps": 60.0,
+   "cpu": {
+    "host": "not sampled"
+   },
+   "viewer": "h264 software; ANGLE (Mesa, zink Vulkan 1.4(Turnip Adreno (TM) 750 (MESA_TURNIP)), OpenGL 4.6); raf 72 Hz",
+   "show_s": 1.75,
+   "panel": "valve.steam.desktopgame.2001932457",
+   "src": "test",
+   "route": "network"
+  }
+ ],
+ "proof": "Synthetic x264 PC agent runs on the Frame itself, forwarded via Mac and back. Not Windows/Linux desktop capture or laser input."
+}
@@ -0,0 +1,16 @@
+#!/usr/bin/env python3
+"""Build the common controller for the Python PC host (a C11 compiler needed)."""
+import os
+from pathlib import Path
+import subprocess
+import sys
+
+root = Path(__file__).resolve().parent
+suffix = '.dll' if sys.platform == 'win32' else '.dylib' if sys.platform == 'darwin' else '.so'
+out = root / ('controller' + suffix)
+if sys.platform == 'win32' and os.environ.get('CC', 'cl') == 'cl':
+    cmd = ['cl', '/nologo', '/O2', '/LD', '/std:c11', str(root / 'controller.c'), '/link', '/OUT:' + str(out)]
+else:
+    cmd = [os.environ.get('CC', 'cc'), '-O2', '-std=c11', '-shared', '-fPIC', str(root / 'controller.c'), '-o', str(out)]
+subprocess.run(cmd, cwd=root, check=True)
+print(out)
@@ -0,0 +1,126 @@
+#!/usr/bin/env python3
+"""Build our native PC adapter and bundle its ordinary shared libraries.
+
+Run on the target architecture after installing GStreamer development packages.
+No GStreamer executable or desktop streaming application is shipped or invoked.
+Linux libc, display/GPU drivers and the portal service remain platform pieces.
+
+x264 is GPL, so the bundle the Windows installer ships leaves it out: Windows
+encodes with Media Foundation. --with-x264 adds it for CI's headless protocol
+tests, which have no GPU or desktop to encode with.
+"""
+import argparse
+import json
+import os
+from pathlib import Path
+import re
+import shutil
+import subprocess
+import sys
+
+ROOT = Path(__file__).resolve().parent
+
+
+def output(*args):
+    return subprocess.check_output(args, text=True).strip()
+
+
+def build(destination, with_x264=False):
+    win = sys.platform == 'win32'
+    destination.mkdir(parents=True, exist_ok=True)
+    modules = ['gstreamer-1.0', 'gstreamer-app-1.0', 'gstreamer-video-1.0']
+    if not win:
+        modules += ['gio-unix-2.0']
+    import shlex
+    flags = shlex.split(output('pkg-config', '--cflags', '--libs', *modules))
+    lib = destination / ('pc-host.dll' if win else 'pc-host.so')
+    cmd = [os.environ.get('CC', 'gcc' if win else 'cc'), '-std=c11', '-O2', '-shared', '-Wall', '-Wextra']
+    if not win:
+        cmd += ['-fPIC', '-Wl,-rpath,$ORIGIN/lib']
+    subprocess.run(cmd + [str(ROOT / f) for f in ('controller.c', 'capture.c', 'portal.c')] + flags + ['-o', str(lib)], check=True)
+    prefix = Path(output('pkg-config', '--variable=prefix', 'gstreamer-1.0'))
+    plugin_dir = Path(output('pkg-config', '--variable=pluginsdir', 'gstreamer-1.0'))
+    plugins_out, libs_out = destination / 'lib' / 'gstreamer-1.0', destination / ('bin' if win else 'lib')
+    plugins_out.mkdir(parents=True, exist_ok=True)
+    libs_out.mkdir(parents=True, exist_ok=True)
+    names = ['coreelements', 'videotestsrc', 'videoconvertscale', 'app', 'jpeg', 'videoparsersbad']
+    if with_x264:
+        names.append('x264')
+    names += ['d3d11', 'mediafoundation'] if win else ['pipewire', 'va']
+    pending = [lib]
+    for name in names:
+        matches = list(plugin_dir.glob('*gst' + name + ('.dll' if win else '.so')))
+        if not matches:
+            raise SystemExit('Missing GStreamer library: ' + name)
+        for source in matches:
+            target = plugins_out / source.name
+            shutil.copy2(source, target)
+            pending.append(source)
+    if not win:
+        # PipeWire dynamically loads support and protocol modules. ldd cannot
+        # discover those; bundle them with a private client-only config instead
+        # of accidentally loading a different distro's client modules/config.
+        libdir = plugin_dir.parent
+        for relative in ('pipewire-0.3/libpipewire-module-protocol-native.so',
+                         'pipewire-0.3/libpipewire-module-client-node.so',
+                         'pipewire-0.3/libpipewire-module-adapter.so',
+                         'spa-0.2/support/libspa-support.so',
+                         'spa-0.2/support/libspa-dbus.so',
+                         'spa-0.2/videoconvert/libspa-videoconvert.so'):
+            source = libdir / relative
+            if not source.is_file():
+                raise SystemExit('Missing PipeWire runtime library: ' + str(source))
+            target = destination / 'lib' / relative
+            target.parent.mkdir(parents=True, exist_ok=True)
+            shutil.copy2(source, target)
+            pending.append(source)
+        config = destination / 'share' / 'pipewire'
+        config.mkdir(parents=True, exist_ok=True)
+        (config / 'client.conf').write_text(
+            'context.spa-libs = { support.* = support/libspa-support video.* = videoconvert/libspa-videoconvert }\n'
+            'context.modules = [\n'
+            '  { name = libpipewire-module-protocol-native }\n'
+            '  { name = libpipewire-module-client-node }\n'
+            '  { name = libpipewire-module-adapter }\n'
+            ']\n')
+    copied = set()
+    while pending:
+        binary = pending.pop()
+        if win:
+            imported = re.findall(r'DLL Name:\s*(\S+)', output('objdump', '-p', str(binary)))
+            dependencies = [prefix / 'bin' / name for name in imported]
+        else:
+            dependencies = [Path(p) for p in re.findall(r'=>\s+(/\S+)', output('ldd', str(binary)))]
+        for dep in dependencies:
+            if not dep.is_file() or dep.name in copied:
+                continue
+            if not win and re.match(r'lib(c|m|dl|rt|pthread|resolv)\.so', dep.name):
+                continue
+            shutil.copy2(dep, libs_out / dep.name)
+            copied.add(dep.name)
+            pending.append(dep)
+    # License texts and package provenance accompany the dynamically linked
+    # libraries. Distribution builders keep the upstream package/source URLs.
+    licenses = destination / 'licenses'
+    licenses.mkdir(exist_ok=True)
+    if win:
+        source = prefix / 'share' / 'licenses'
+        if source.exists():
+            shutil.copytree(source, licenses, dirs_exist_ok=True)
+        packages = output('pacman', '-Q') if shutil.which('pacman') else 'See MSYS2 build log'
+    else:
+        packages = output('dpkg-query', '-W', '-f=${Package} ${Version}\n') if shutil.which('dpkg-query') else ''
+        # Debian copyright files contain licenses and source homepage details.
+        for path in Path('/usr/share/doc').glob('*/copyright'):
+            shutil.copy2(path, licenses / (path.parent.name + '.copyright'))
+    (destination / 'libraries.json').write_text(json.dumps(dict(gstreamer=output('pkg-config', '--modversion', 'gstreamer-1.0'),
+        plugins=names, libraries=sorted(copied), packages=packages), indent=2))
+    print(lib)
+
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(description=__doc__)
+    parser.add_argument('--out', type=Path, default=ROOT / 'bundle')
+    parser.add_argument('--with-x264', action='store_true', help='add the GPL x264 encoder (CI tests only, never shipped)')
+    args = parser.parse_args()
+    build(args.out.resolve(), args.with_x264)
@@ -0,0 +1,134 @@
+/* Frame Control's capture/encode adapter. GStreamer is a bundled library;
+ * capture uses WGC on Windows and the consented PipeWire fd on Linux. */
+#include "controller.h"
+#include <gst/gst.h>
+#include <gst/app/gstappsink.h>
+#include <gst/video/video-event.h>
+#include <string.h>
+
+typedef int (*Gate)(int stage, int64_t pts, int64_t capture, int64_t arrived);
+typedef struct {
+    GstElement *pipeline, *encoder, *sink, *raw_queue;
+    Gate gate;
+    GstSample *sample;
+    GstMapInfo map;
+    int mapped;
+    char error[512];
+} Capture;
+typedef struct { const unsigned char *data; int size, key, width, height; int64_t pts; } Encoded;
+FC_API int64_t fc_now(void) {return g_get_monotonic_time();}
+FC_API void fc_gst_init(void) {gst_init(NULL,NULL);}
+FC_API int fc_has_element(const char *name) {
+    GstElementFactory *f=gst_element_factory_find(name);
+    if(!f)return 0;gst_object_unref(f);return 1;
+}
+FC_API int fc_has_property(const char *element, const char *property) {
+    /* Probe the same initialized GStreamer instance that capture uses. The
+     * bundled MSYS2 plugin can omit optional WGC properties entirely. */
+    GstElement *source=gst_element_factory_make(element,NULL);
+    if(!source)return 0;
+    int found=g_object_class_find_property(G_OBJECT_GET_CLASS(source),property)!=NULL;
+    gst_object_unref(source);
+    return found;
+}
+static GstPadProbeReturn probe(GstPad *pad,GstPadProbeInfo *info,gpointer data) {
+    Capture *c=data; GstBuffer *b=GST_PAD_PROBE_INFO_BUFFER(info);
+    if(!b)return GST_PAD_PROBE_OK;
+    int64_t now=fc_now(), cap=now;
+    GstClock *clock=gst_element_get_clock(c->pipeline);
+    if(clock && GST_BUFFER_PTS_IS_VALID(b)) {
+        GstClockTime current=gst_clock_get_time(clock),origin=gst_element_get_base_time(c->pipeline);
+        if(current>=origin && current-origin>=GST_BUFFER_PTS(b))
+            cap-= (int64_t)((current-origin-GST_BUFFER_PTS(b))/1000);
+    }
+    if(clock)gst_object_unref(clock);
+    int stage=GPOINTER_TO_INT(g_object_get_data(G_OBJECT(pad),"stage"));
+    if(stage==1) return c->gate(stage,(int64_t)GST_BUFFER_PTS(b),cap,now)>0 ? GST_PAD_PROBE_OK : GST_PAD_PROBE_DROP;
+    int phase=0;
+    for(;;) {
+        /* While congested, prefer a newer raw picture queued upstream. If
+         * nothing changed, retain this last picture until the gate opens;
+         * an idle window must not stay stale after a dropped final update. */
+        guint queued=0;
+        if(phase && c->raw_queue)g_object_get(c->raw_queue,"current-level-buffers",&queued,NULL);
+        if(queued)return GST_PAD_PROBE_DROP;
+        int decision=c->gate(phase,(int64_t)GST_BUFFER_PTS(b),cap,now);
+        if(decision)return decision>0 ? GST_PAD_PROBE_OK : GST_PAD_PROBE_DROP;
+        phase=2;g_usleep(2000);
+    }
+}
+FC_API Capture *fc_capture_open(const char *pipeline,Gate gate,char *error,int capacity) {
+    GError *e=NULL;Capture *c=g_new0(Capture,1);c->gate=gate;
+    c->pipeline=gst_parse_launch(pipeline,&e);
+    if(e || !c->pipeline) {
+        g_strlcpy(error,e?e->message:"No pipeline",capacity);
+        if(e)g_error_free(e);if(c->pipeline)gst_object_unref(c->pipeline);g_free(c);return NULL;
+    }
+    c->encoder=gst_bin_get_by_name(GST_BIN(c->pipeline),"enc");
+    c->sink=gst_bin_get_by_name(GST_BIN(c->pipeline),"out");
+    GstElement *raw=gst_bin_get_by_name(GST_BIN(c->pipeline),"gate");
+    if(!c->encoder || !c->sink || !raw) {
+        g_strlcpy(error,"Pipeline is missing enc, out or gate",capacity);
+        if(raw)gst_object_unref(raw);if(c->encoder)gst_object_unref(c->encoder);
+        if(c->sink)gst_object_unref(c->sink);gst_object_unref(c->pipeline);g_free(c);return NULL;
+    }
+    c->raw_queue=gst_bin_get_by_name(GST_BIN(c->pipeline),"raw_queue");
+    GstPad *p=gst_element_get_static_pad(raw,"src");
+    g_object_set_data(G_OBJECT(p),"stage",GINT_TO_POINTER(0));
+    gst_pad_add_probe(p,GST_PAD_PROBE_TYPE_BUFFER,probe,c,NULL);gst_object_unref(p);gst_object_unref(raw);
+    p=gst_element_get_static_pad(c->encoder,"sink");
+    g_object_set_data(G_OBJECT(p),"stage",GINT_TO_POINTER(1));
+    gst_pad_add_probe(p,GST_PAD_PROBE_TYPE_BUFFER,probe,c,NULL);gst_object_unref(p);
+    gst_element_set_state(c->pipeline,GST_STATE_PLAYING);
+    return c;
+}
+FC_API int fc_capture_pull(Capture *c,Encoded *out) {
+    if(c->mapped) {gst_buffer_unmap(gst_sample_get_buffer(c->sample),&c->map);c->mapped=0;}
+    if(c->sample){gst_sample_unref(c->sample);c->sample=NULL;}
+    GstBus *bus=gst_element_get_bus(c->pipeline);
+    GstMessage *m=gst_bus_pop_filtered(bus,GST_MESSAGE_ERROR);gst_object_unref(bus);
+    if(m) {
+        if(GST_MESSAGE_TYPE(m)==GST_MESSAGE_ERROR) {
+            GError *e=NULL;char *debug=NULL;gst_message_parse_error(m,&e,&debug);
+            g_strlcpy(c->error,e->message,sizeof(c->error));g_error_free(e);g_free(debug);
+        } else g_strlcpy(c->error,"The capture source closed",sizeof(c->error));
+        gst_message_unref(m);return -1;
+    }
+    c->sample=gst_app_sink_try_pull_sample(GST_APP_SINK(c->sink),100*GST_MSECOND);
+    if(!c->sample) {
+        if(gst_app_sink_is_eos(GST_APP_SINK(c->sink))) {
+            g_strlcpy(c->error,"The capture source closed",sizeof(c->error));return -1;
+        }
+        return 0;
+    }
+    GstBuffer *b=gst_sample_get_buffer(c->sample);
+    if(!gst_buffer_map(b,&c->map,GST_MAP_READ))return 0;
+    c->mapped=1;out->data=c->map.data;out->size=(int)c->map.size;
+    out->key=!GST_BUFFER_FLAG_IS_SET(b,GST_BUFFER_FLAG_DELTA_UNIT);out->pts=(int64_t)GST_BUFFER_PTS(b);
+    const GstStructure *s=gst_caps_get_structure(gst_sample_get_caps(c->sample),0);
+    gst_structure_get_int(s,"width",&out->width);gst_structure_get_int(s,"height",&out->height);return 1;
+}
+FC_API const char *fc_capture_error(Capture *c) {return c->error;}
+FC_API void fc_capture_bitrate(Capture *c,int bps) {
+    g_object_set(c->encoder,"bitrate",(guint)MAX(1,bps/1000),NULL);
+}
+FC_API void fc_capture_test(Capture *c,uint32_t input) {
+    GstElement *source=gst_bin_get_by_name(GST_BIN(c->pipeline),"source");
+    if(source) {
+        /* Each benchmark click visibly changes the ball, before injection is
+         * timestamped. This is a response, not merely a protocol input echo. */
+        guint color=0xff000000u | ((input*2654435761u)&0x00ffffffu);
+        g_object_set(source,"foreground-color",color,NULL);gst_object_unref(source);
+    }
+}
+FC_API void fc_capture_key(Capture *c) {
+    GstPad *p=gst_element_get_static_pad(c->encoder,"src");
+    gst_pad_send_event(p,gst_video_event_new_upstream_force_key_unit(GST_CLOCK_TIME_NONE,TRUE,0));gst_object_unref(p);
+}
+FC_API void fc_capture_close(Capture *c) {
+    gst_element_set_state(c->pipeline,GST_STATE_NULL);
+    if(c->mapped)gst_buffer_unmap(gst_sample_get_buffer(c->sample),&c->map);
+    if(c->sample)gst_sample_unref(c->sample);
+    if(c->raw_queue)gst_object_unref(c->raw_queue);
+    gst_object_unref(c->sink);gst_object_unref(c->encoder);gst_object_unref(c->pipeline);g_free(c);
+}
@@ -0,0 +1,130 @@
+/* A C port of the Mac agent's RateController (mac/frame-mac-view/Sources/
+ * Controller.swift) for the Windows host. Same gate, demand protection, bitrate
+ * recovery and tier hysteresis; bounded sample buffers. The Mac agent keeps its
+ * Swift original, so a change to either must be made to both:
+ * tests/test_pc_controller.py checks this one against the Swift trace. */
+#include "controller.h"
+#include <stdlib.h>
+#include <string.h>
+#define CAP 1024
+#define MIN(a,b) ((a)<(b)?(a):(b))
+#define MAX(a,b) ((a)>(b)?(a):(b))
+typedef struct { int64_t t, v; uint32_t seq; } Sample;
+typedef struct { Sample a[CAP]; int n; } Samples;
+struct FCController {
+    int max_fps, enabled, ceiling, target, tier, frame_bytes, held, signal, saw_ack;
+    int64_t decrease, increase, below, above, slack;
+    Samples flight, rtts, acked, sent, captures;
+};
+static const int fps[] = {60,45,30,30,30}, scale[] = {100,100,100,75,50};
+static const double floors[] = {.45,.28,.16,.08,0};
+static void remove_first(Samples *s, int n) {
+    s->n -= n; memmove(s->a, s->a+n, (size_t)s->n*sizeof(Sample));
+}
+static void add(Samples *s, Sample v, int cap) {
+    if (s->n >= cap) remove_first(s, 1);
+    s->a[s->n++] = v;
+}
+static void expire(Samples *s, int64_t oldest) {
+    int n=0; while(n<s->n && s->a[n].t<oldest) n++;
+    remove_first(s,n);
+}
+static int64_t base(FCController *c) {
+    int64_t v=0;
+    for(int i=0;i<c->rtts.n;i++) if(!i || c->rtts.a[i].v<v) v=c->rtts.a[i].v;
+    return v;
+}
+static int compare(const void *a, const void *b) {
+    int64_t x=*(const int64_t*)a, y=*(const int64_t*)b;
+    return (x>y)-(x<y);
+}
+static int64_t quantile(Samples *s,int64_t since,int numerator,int denominator) {
+    int64_t a[CAP]; int n=0;
+    for(int i=0;i<s->n;i++) if(s->a[i].t>since) a[n++]=s->a[i].v;
+    if(!n) return 0;
+    qsort(a,(size_t)n,sizeof(int64_t),compare);
+    return a[n*numerator/denominator];
+}
+static int rate(Samples *s) {
+    int64_t total=0; for(int i=0;i<s->n;i++) total+=s->a[i].v;
+    return (int)MIN(total*16,2147483647);
+}
+FCController *fc_new(int max_fps,int enabled) {
+    FCController *c=calloc(1,sizeof(*c));
+    if(c) {c->max_fps=MAX(1,max_fps);c->enabled=enabled;c->slack=40000;}
+    return c;
+}
+void fc_free(FCController *c) {free(c);}
+void fc_ceiling(FCController *c,int bps) {
+    if(!c->target || c->target>bps) c->target=bps;
+    c->ceiling=bps;
+}
+int fc_gate(FCController *c,int64_t now,int counts) {
+    if(!c->enabled || !c->saw_ack) return 1;
+    expire(&c->flight,now-2000000);
+    if(!c->flight.n) return 1;
+    int64_t interval=1000000/MIN(c->max_fps,fps[c->tier]);
+    int window=MAX(3,(int)((base(c)+c->slack)/interval)+1);
+    if(c->flight.n<window && now-c->flight.a[0].t<=base(c)+c->slack) return 1;
+    if(counts) c->held++;
+    return 0;
+}
+void fc_capture(FCController *c,int64_t now) {add(&c->captures,(Sample){now,0,0},256);}
+void fc_sent(FCController *c,uint32_t seq,int bytes,int64_t now) {
+    Sample s={now,bytes,seq};add(&c->flight,s,512);add(&c->sent,s,CAP);
+}
+int fc_ack(FCController *c,uint32_t seq,int64_t now) {
+    c->saw_ack=1;
+    for(int i=0;i<c->flight.n;i++) if(c->flight.a[i].seq==seq) {
+        Sample s=c->flight.a[i];remove_first(&c->flight,i+1);
+        add(&c->rtts,(Sample){now,now-s.t,0},CAP);
+        add(&c->acked,(Sample){now,s.v,0},CAP);return 1;
+    }
+    return 0;
+}
+int fc_update(FCController *c,int64_t now) {
+    expire(&c->rtts,now-10000000);expire(&c->acked,now-500000);
+    expire(&c->sent,now-500000);expire(&c->flight,now-2000000);
+    expire(&c->captures,now-1000000);
+    if(!c->enabled || c->ceiling<=0) return 0;
+    int64_t baseline=base(c), spread=quantile(&c->rtts,now-2000000,9,10);
+    int64_t jitter=spread ? spread-baseline : 0;
+    c->slack=1000000/MIN(c->max_fps,fps[c->tier])+MIN(MAX(jitter*3/2,25000),80000);
+    int64_t recent=quantile(&c->rtts,now-300000,1,2);
+    int64_t queue=recent ? recent-baseline : 0;
+    int64_t age=c->flight.n ? now-c->flight.a[0].t : 0;
+    int delivered=rate(&c->acked),sending=rate(&c->sent);
+    if(c->sent.n) c->frame_bytes=sending/16/c->sent.n;
+    int demand=(int)MIN((int64_t)MIN(c->captures.n,MIN(c->max_fps,fps[c->tier]))*c->frame_bytes*8,2147483647);
+    int signal=(sending>=c->target/2 && queue>40000)||c->held>=3||age>baseline+100000;
+    int congested=signal && c->signal;c->signal=signal;c->held=0;
+    if(congested && now-c->decrease>300000) {
+        int next=MAX(300000,MIN((int64_t)c->target*4/5,MAX((int64_t)delivered*9/10,c->target/2)));
+        if(demand>0 && (int64_t)demand*2<=(int64_t)c->target*5/4) next=MAX(next,MIN(c->target,(int64_t)demand*2));
+        c->target=next;c->decrease=now;
+    } else if(!congested && now-c->decrease>1000000 && now-c->increase>250000 && c->target<c->ceiling &&
+              (sending>(int64_t)c->target*6/10 || now-c->decrease>3000000)) {
+        c->target=MIN(c->ceiling,(int64_t)(c->target*1.1)+50000);c->increase=now;
+    }
+    double share=(double)c->target/MAX(c->ceiling,1);
+    if(c->tier<4 && share<floors[c->tier] && sending>=(int64_t)c->target*7/10) {
+        if(!c->below)c->below=now;
+        if(now-c->below>500000) {
+            for(c->tier=0;c->tier<4 && share<floors[c->tier];c->tier++) {}
+            c->below=0;
+        }
+    } else c->below=0;
+    if(c->tier>0 && share>floors[c->tier-1]*1.25) {
+        if(!c->above)c->above=now;
+        if(now-c->above>2000000) {c->tier--;c->above=0;}
+    } else c->above=0;
+    return c->target;
+}
+int64_t fc_value(FCController *c,int field) {
+    switch(field) {
+    case 0:return c->target;case 1:return c->ceiling;case 2:return c->tier;
+    case 3:return MIN(c->max_fps,fps[c->tier]);case 4:return scale[c->tier];
+    case 5:return base(c);case 6:return c->flight.n;case 7:return c->slack;
+    default:return 0;
+    }
+}
@@ -0,0 +1,29 @@
+/* Shared latency controller. Times are monotonic host microseconds.
+ * Callers serialize access. Capture is gated BEFORE encoding: dropping an
+ * encoded inter frame would break the decoder's reference chain. */
+#ifndef FRAME_CONTROLLER_H
+#define FRAME_CONTROLLER_H
+#include <stdint.h>
+#ifdef _WIN32
+#define FC_API __declspec(dllexport)
+#else
+#define FC_API
+#endif
+#ifdef __cplusplus
+extern "C" {
+#endif
+typedef struct FCController FCController;
+FC_API FCController *fc_new(int fps, int enabled);
+FC_API void fc_free(FCController *c);
+FC_API void fc_ceiling(FCController *c, int bps);
+FC_API int fc_gate(FCController *c, int64_t now, int counts);
+FC_API void fc_capture(FCController *c, int64_t now);
+FC_API void fc_sent(FCController *c, uint32_t seq, int bytes, int64_t now);
+FC_API int fc_ack(FCController *c, uint32_t seq, int64_t now);
+FC_API int fc_update(FCController *c, int64_t now);
+/* target, ceiling, tier, fps, scale percent, baseline us, in flight, slack us */
+FC_API int64_t fc_value(FCController *c, int field);
+#ifdef __cplusplus
+}
+#endif
+#endif
@@ -0,0 +1,147 @@
+/* xdg-desktop-portal RemoteDesktop + ScreenCast, one consented session per
+ * panel. PipeWire receives the portal fd, never the unrestricted daemon fd.
+ * Input uses only the devices granted in Start's response. */
+#ifndef _WIN32
+#include "controller.h"
+#include <gio/gio.h>
+#include <gio/gunixfdlist.h>
+#include <unistd.h>
+#include <string.h>
+#define BUS "org.freedesktop.portal.Desktop"
+#define PATH "/org/freedesktop/portal/desktop"
+#define RD "org.freedesktop.portal.RemoteDesktop"
+#define SC "org.freedesktop.portal.ScreenCast"
+typedef struct {
+    GDBusConnection *bus;
+    GMainContext *context;
+    char *session;
+    int fd;
+    unsigned node, devices;
+    int width,height;
+} Portal;
+typedef struct {GVariant *result;int done;unsigned code;} Response;
+static void response(GDBusConnection *c,const char *sender,const char *path,const char *iface,
+                     const char *signal,GVariant *params,gpointer data) {
+    (void)c;(void)sender;(void)path;(void)iface;(void)signal;
+    Response *r=data;g_variant_get(params,"(u@a{sv})",&r->code,&r->result);r->done=1;
+}
+static void option(GVariantBuilder *b,const char *key,GVariant *v) {g_variant_builder_add(b,"{sv}",key,v);}
+static GVariant *request(Portal *p,const char *iface,const char *method,GVariant *args,
+                         const char *token,char *error,int capacity) {
+    char *sender=g_strdup(g_dbus_connection_get_unique_name(p->bus)+1);
+    for(char *c=sender;*c;c++)if(*c=='.')*c='_';
+    char *path=g_strdup_printf(PATH "/request/%s/%s",sender,token);g_free(sender);
+    Response r={0};GError *e=NULL;
+    guint sub=g_dbus_connection_signal_subscribe(p->bus,BUS,"org.freedesktop.portal.Request","Response",
+                                                 path,NULL,G_DBUS_SIGNAL_FLAGS_NONE,response,&r,NULL);
+    GVariant *reply=g_dbus_connection_call_sync(p->bus,BUS,PATH,iface,method,args,G_VARIANT_TYPE("(o)"),
+                                               G_DBUS_CALL_FLAGS_NONE,10000,NULL,&e);
+    if(reply)g_variant_unref(reply);
+    int64_t deadline=g_get_monotonic_time()+120000000;
+    while(!e && !r.done && g_get_monotonic_time()<deadline) {
+        while(g_main_context_iteration(p->context,FALSE)) {}
+        g_usleep(10000);
+    }
+    if(!r.done) {
+        GVariant *closed=g_dbus_connection_call_sync(p->bus,BUS,path,"org.freedesktop.portal.Request","Close",
+                                NULL,NULL,G_DBUS_CALL_FLAGS_NONE,2000,NULL,NULL);
+        if(closed)g_variant_unref(closed);
+    }
+    g_dbus_connection_signal_unsubscribe(p->bus,sub);g_free(path);
+    if(e || !r.done || r.code) {
+        g_strlcpy(error,e?e->message:!r.done?"Screen sharing request timed out":"Screen sharing was cancelled or refused",capacity);
+        if(e)g_error_free(e);if(r.result)g_variant_unref(r.result);return NULL;
+    }
+    return r.result;
+}
+FC_API void fc_portal_close(Portal *p) {
+    if(!p)return;
+    if(p->session && p->bus) {
+        GVariant *r=g_dbus_connection_call_sync(p->bus,BUS,p->session,"org.freedesktop.portal.Session","Close",
+                                                NULL,NULL,G_DBUS_CALL_FLAGS_NONE,2000,NULL,NULL);
+        if(r)g_variant_unref(r);
+    }
+    if(p->fd>=0){close(p->fd);p->fd=-1;}
+    g_free(p->session);if(p->bus)g_object_unref(p->bus);
+    if(p->context)g_main_context_unref(p->context);g_free(p);
+}
+/* Each pipeline gets a fresh restricted PipeWire connection. A dup of a
+ * previously consumed protocol socket is not a new connection.
+ * Ownership: the Portal owns p->fd for its whole life and is its only closer.
+ * pipewiresrc never takes the fd it is given: its core connects with
+ * pw_context_connect_fd(ctx, fcntl(fd, F_DUPFD_CLOEXEC, 3), ...) and that
+ * duplicate is what PipeWire closes on teardown (src/gst/gstpipewirecore.c,
+ * unchanged from 0.3.19 through 1.x). So closing p->fd here is not a double
+ * close; not closing it would leak one socket per pipeline reopen. The
+ * caller closes the previous pipeline before asking for a new fd. */
+FC_API int fc_portal_refresh(Portal *p,char *error,int capacity) {
+    GVariantBuilder b;g_variant_builder_init(&b,G_VARIANT_TYPE_VARDICT);
+    GUnixFDList *fds=NULL;GError *e=NULL;
+    GVariant *r=g_dbus_connection_call_with_unix_fd_list_sync(p->bus,BUS,PATH,SC,"OpenPipeWireRemote",
+         g_variant_new("(oa{sv})",p->session,&b),G_VARIANT_TYPE("(h)"),G_DBUS_CALL_FLAGS_NONE,10000,NULL,&fds,NULL,&e);
+    if(!r){g_strlcpy(error,e->message,capacity);g_error_free(e);return -1;}
+    int handle;g_variant_get(r,"(h)",&handle);g_variant_unref(r);
+    int fd=g_unix_fd_list_get(fds,handle,&e);g_object_unref(fds);
+    if(fd<0){g_strlcpy(error,e->message,capacity);g_error_free(e);return -1;}
+    if(p->fd>=0)close(p->fd);
+    p->fd=fd;return fd;
+}
+FC_API Portal *fc_portal_select(char *error,int capacity) {
+    Portal *p=g_new0(Portal,1);p->fd=-1;p->context=g_main_context_new();
+    g_main_context_push_thread_default(p->context);
+    GError *e=NULL;GVariant *r=NULL;
+    p->bus=g_bus_get_sync(G_BUS_TYPE_SESSION,NULL,&e);
+    if(!p->bus) {g_strlcpy(error,e->message,capacity);g_error_free(e);goto fail;}
+    GVariantBuilder b;char token[64],session[64];
+    g_snprintf(session,sizeof(session),"fc_%u",g_random_int());
+    g_snprintf(token,sizeof(token),"fc_%u",g_random_int());
+    g_variant_builder_init(&b,G_VARIANT_TYPE_VARDICT);
+    option(&b,"handle_token",g_variant_new_string(token));option(&b,"session_handle_token",g_variant_new_string(session));
+    r=request(p,RD,"CreateSession",g_variant_new("(a{sv})",&b),token,error,capacity);if(!r)goto fail;
+    g_variant_lookup(r,"session_handle","s",&p->session);g_variant_unref(r);r=NULL;
+    if(!p->session){g_strlcpy(error,"Portal did not return a session",capacity);goto fail;}
+    g_snprintf(token,sizeof(token),"fc_%u",g_random_int());g_variant_builder_init(&b,G_VARIANT_TYPE_VARDICT);
+    option(&b,"handle_token",g_variant_new_string(token));option(&b,"types",g_variant_new_uint32(3));
+    r=request(p,RD,"SelectDevices",g_variant_new("(oa{sv})",p->session,&b),token,error,capacity);if(!r)goto fail;g_variant_unref(r);
+    g_snprintf(token,sizeof(token),"fc_%u",g_random_int());g_variant_builder_init(&b,G_VARIANT_TYPE_VARDICT);
+    option(&b,"handle_token",g_variant_new_string(token));option(&b,"types",g_variant_new_uint32(3));
+    option(&b,"multiple",g_variant_new_boolean(FALSE));option(&b,"cursor_mode",g_variant_new_uint32(2));
+    r=request(p,SC,"SelectSources",g_variant_new("(oa{sv})",p->session,&b),token,error,capacity);if(!r)goto fail;g_variant_unref(r);
+    g_snprintf(token,sizeof(token),"fc_%u",g_random_int());g_variant_builder_init(&b,G_VARIANT_TYPE_VARDICT);
+    option(&b,"handle_token",g_variant_new_string(token));
+    r=request(p,RD,"Start",g_variant_new("(osa{sv})",p->session,"",&b),token,error,capacity);if(!r)goto fail;
+    g_variant_lookup(r,"devices","u",&p->devices);
+    GVariant *streams=g_variant_lookup_value(r,"streams",G_VARIANT_TYPE("a(ua{sv})"));
+    if(streams && g_variant_n_children(streams)>0) {
+        GVariant *entry=g_variant_get_child_value(streams,0),*props=NULL;
+        g_variant_get(entry,"(u@a{sv})",&p->node,&props);
+        g_variant_lookup(props,"size","(ii)",&p->width,&p->height);
+        g_variant_unref(props);g_variant_unref(entry);
+    }
+    if(streams)g_variant_unref(streams);g_variant_unref(r);r=NULL;
+    if(!p->node || p->width<=0 || p->height<=0) {g_strlcpy(error,"Portal returned no stream size",capacity);goto fail;}
+    if(fc_portal_refresh(p,error,capacity)<0)goto fail;
+    g_main_context_pop_thread_default(p->context);return p;
+fail:
+    g_main_context_pop_thread_default(p->context);fc_portal_close(p);return NULL;
+}
+FC_API int fc_portal_value(Portal *p,int field) {
+    switch(field){case 0:return p->fd;case 1:return (int)p->node;case 2:return p->width;
+                 case 3:return p->height;case 4:return (int)p->devices;default:return 0;}
+}
+FC_API int fc_portal_input(Portal *p,int type,double x,double y,int code,int down) {
+    const char *method=NULL;GVariant *args=NULL;GVariantBuilder b;g_variant_builder_init(&b,G_VARIANT_TYPE_VARDICT);
+    if(type==0 && (p->devices&2)) {
+        method="NotifyPointerMotionAbsolute";args=g_variant_new("(oa{sv}udd)",p->session,&b,p->node,x,y);
+    } else if(type==1 && (p->devices&2)) {
+        method="NotifyPointerButton";args=g_variant_new("(oa{sv}iu)",p->session,&b,code,(guint)down);
+    } else if(type==2 && (p->devices&2)) {
+        method="NotifyPointerAxis";args=g_variant_new("(oa{sv}dd)",p->session,&b,x,y);
+    } else if(type==3 && (p->devices&1)) {
+        method="NotifyKeyboardKeysym";args=g_variant_new("(oa{sv}iu)",p->session,&b,code,(guint)down);
+    } else return 0;
+    GError *e=NULL;GVariant *r=g_dbus_connection_call_sync(p->bus,BUS,PATH,RD,method,args,NULL,
+                                                       G_DBUS_CALL_FLAGS_NONE,2000,NULL,&e);
+    if(e)g_error_free(e);if(r)g_variant_unref(r);return r!=NULL;
+}
+#endif
@@ -190,6 +190,35 @@ IzzyOnDroid, curated GitHub releases, itch.io). **Library** shows the apps on th
 Frame as cards, with Play and a menu for Test, Report and Remove; the display
 settings and recent reports are below it.

+Store search cards and app details also show **Reported not working** or
+**Reported issues** when saved compatibility reports say so. Details include
+the report date, version and notes. These are advisories: Install remains
+available unless the selected build has an existing compatibility blocker
+(for example, no arm64-v8a build or Android API above 30). Reports never clear
+those blockers. Apps reported not working are excluded from Home's featured
+app and recommendation shelves; search and category results still show them.
+An unrated install failure caused by the wrong APK architecture or Android API
+is ignored, using the same rules as the catalogue. A person's rating takes
+priority over automated results, with the latest rating winning.
+
+Reports warm in a background worker at server start. Search and details read
+only the last complete in-memory snapshot and schedule a single background
+refresh after 60 seconds; they never wait for disk, Keychain, a subprocess or
+the report database. During initial loading they show the usual build verdict;
+after a refresh, the next search or detail request sees the reports. Failed
+refreshes keep the previous snapshot and retry after another 60 seconds.
+
+**Availability:** public copies benefit from their own saved reports, including
+reports for apps outside the bundled catalogue, across every source with the
+same package name. This does not give public users the private shared ratings.
+The checked-in `apk-catalog/site/apps.js` contains predictions and no tested
+report verdicts, so it cannot supply a useful public report snapshot. No private
+reports, free-text notes or credentials are exported or published. The existing
+maintainer loader still uses its configured database access in the background;
+the search feature adds no sharing, endpoint or network destination. Tests leave
+the hook off by default (`FRAME_COMPAT_SEARCH_REPORTS=0` also disables it in
+server subprocesses) and use synthetic reports to exercise refresh behavior.
+
 The store groups apps by what a headset is good for, not by F-Droid's list:
 VR, Games, Emulators, Watch & listen, Read & learn, Create, Work, Web & chat
 and Tools (`ui/apk_sources/_categories.py`). A VR app is always in VR. Otherwise
@@ -402,3 +431,49 @@ app instance and back up/restore a stopped instance's private app data. See
 [SideQuest features and limits](sidequest.md) for commands, archive scope and
 verification status. These paths have offline coverage; real Frame storage and
 permissions remain unverified. They do not change APK install or launch behavior.
+
+
+## Local APK/OBB backups and Android bundles
+
+In **Android apps → Import Android game → Choose game files…** (or **Send to Frame**), choose one
+standalone APK and its matching `main.<version>.<package>.obb` and/or
+`patch.<version>.<package>.obb` files together. The desktop app also discovers
+matching OBB files beside a lone selected APK. Browser uploads use only the
+files you selected. Installed apps can receive OBB-only imports.
+
+You can instead select **one `.xapk`, `.apks`, or `.apkm` archive** containing
+one standalone APK and optional matching OBBs. These extensions describe
+containers, not a guarantee that their contents are supported. OBBs may be
+at the archive root, under `<package>/`, or under `Android/obb/<package>/`;
+one enclosing backup folder is allowed. Known manifest/icon/signature
+sidecars are ignored; the APK manifest determines the package. Unknown files,
+unsafe paths, links, encrypted entries, duplicate paths (including case
+collisions), more than 4,096 entries, or more than 16 GiB unpacked are refused.
+Staging also keeps 64 MiB of free disk space. Payloads still have the regular
+one-APK/99-OBB limit. Ordinary `.zip` files keep the PC-title import route;
+extract an Android ZIP yourself and select its APK/OBBs.
+
+The importer previews the app and files before **Import game & data**.
+Confirming authorizes installing the app, starting it to prepare Android,
+checking the running package/version, copying OBBs through the existing
+verified data helper, and closing the game. Open it from Steam afterwards.
+If setup fails, read the error and retry the same backup; do not uninstall
+first, since that deletes saves. An app that cannot start may also prevent
+data setup. Uploaded and extracted staging is removed on cancellation,
+inspection failure, or job completion/failure; abandoned imports expire
+through the existing one-hour staging lifecycle. Original local files stay intact.
+
+**Limits:** this backup importer refuses multiple APKs, split-only APKs and
+bases marked as requiring splits. It does not select device variants or restore
+`Android/data`, private app data, saves, or entitlements. For the separate
+restricted native-library/asset split workflow see
+[Quest split APKs](quest-import.md#split-apks) and the CLI above. Resource,
+code and feature splits are not supported by that merger.
+
+For issue #102, the RE4 report only establishes that an APK attempt failed.
+Missing OBBs are a hypothesis; the edition/build, exact files, failing step,
+and runtime compatibility remain unknown. Record those details, Frame Control
+and SteamOS versions, and sanitized server/crash errors before diagnosing it.
+`python3 ui/frame_android.py info /path/to/game.apk` inspects the APK locally.
+Successful installation or fixture tests do not establish RE4 compatibility;
+OBBs cannot fix ABI/API, VrApi/OpenXR, entitlement or Android-service failures.
@@ -0,0 +1,187 @@
+# Backup and recovery
+
+**Tools → Backup & recovery** copies what a factory reset would lose from the
+Steam Frame to your computer, puts it back afterwards, and gets the headset out
+of Desktop Mode. It runs from Frame Control on a computer, not from the iPhone
+app or the Frame itself.
+
+**Partly tested on a headset.** On a Frame running SteamOS 0.5.6 (build
+20261015.6141207), a full backup saved 26 parts (40.7 MB): 14 games' Proton
+saves, Linux game saves, Steam and desktop settings and 9 Android apps' data,
+with no sign-in files or keys in the archives. Restoring one game's saves on top
+of identical files wrote nothing and left nothing behind. The session check
+reported Game Mode, so **Return to Game Mode** changed nothing. Not tested on a
+headset: a restore after a real factory reset, a restore that replaces files,
+Android data restore. Unit tests and the fake Frame cover those (see
+[Verification](#verification)).
+On 2026-10-24, the real-device reproduction in [issue #142](https://github.com/saphid/frame-control/issues/142)
+confirmed full Plasma Desktop Mode on the same build: the Plasma session target
+was active and the Game Mode target inactive. Desktop Mode also ran gamescope
+for `steamvr-plasma.service`, so the old process check incorrectly reported
+Game Mode. SteamOS's `steamosctl switch-to-game-mode` restored Game Mode and
+reversed the target states; battery stayed at 99%, and the rollback timer and
+shared lock were cleaned up. After #143 passed CI, the corrected code was
+tested in another full Plasma session under a three-minute rollback timer.
+`ui/frame_backup.py session` reported Desktop Mode despite gamescope, and
+`ui/frame_backup.py game-mode` invoked the same guarded Return function used by
+the button. Game Mode became active and a second call made no switch. Battery
+remained at 99%; the timer and lock were removed. The literal desktop button
+was not clicked in this test, and older SteamOS builds remain fixture-tested.
+
+## Back up
+
+Choose **Game saves**, **Steam and desktop settings** and **Android app data**
+(all three by default), then **Back up now**. **See what's included** lists each
+part and its size first. Backing up only reads the headset.
+
+Each backup is a folder named after the time it started:
+
+```
+~/Documents/Frame Control Backups/2026-10-23-142530/
+  manifest.json
+  saves/saves-1234.tar.gz          one per game
+  saves/saves-linux.tar.gz
+  settings/settings-steam.tar.gz
+  settings/settings-system.tar.gz
+  android/org.example.game.tar.gz  one per Android app
+```
+
+`manifest.json` records the headset's name, SteamOS version and BUILD_ID, every
+file with its size and SHA-256, and each archive's SHA-256. It also lists what
+was skipped and why. A backup is written under a hidden `.…partial` name and
+renamed when complete, so a cut-off backup never shows up as one.
+
+### What's saved
+
+| Part | From the headset (`~` is `/home/steamos`) | Restored? |
+|---|---|---|
+| Windows game saves | `~/.local/share/Steam/steamapps/compatdata/<appid>/pfx/drive_c/users/steamuser/` → `AppData/Roaming`, `AppData/Local`, `AppData/LocalLow`, `Documents`, `Saved Games`. Wine's own folders in them (`Temp`, `Microsoft`, `D3DSCache`, `CrashDumps`) are left out. Sideloaded Windows games (non-Steam shortcuts) have prefixes here too | Yes |
+| Linux game saves | `~/.config/unity3d`, `~/.local/share/godot/app_userdata`: where Unity and Godot games save by default | Yes |
+| Steam controller layouts | `userdata/<account>/241100/remote/controller_config`, `steamapps/common/Steam Controller Configs/<account>/config` | Yes |
+| Steam library settings | `userdata/<account>/config/localconfig.vdf`, `shortcuts.vdf`, `grid/` (custom artwork) | Kept for reference |
+| Desktop settings | `~/.config/kdeglobals`, `kwinrc`, `kxkbrc` (keyboard layout), `konsolerc`, `dolphinrc` | Yes |
+| SteamVR settings | `~/.config/openvr/config/steamvr.vrsettings` | Kept for reference |
+| Android app data | Each Frame Control Android app's private data, through the existing `backup-data` helper ([sidequest.md](sidequest.md#private-app-data-backups)) | Yes |
+
+"Kept for reference" files are in the backup but not put back automatically:
+Steam and SteamVR rewrite them while they run, and an old `shortcuts.vdf` would
+point at apps that aren't installed after a reset. Open the backup folder to
+copy one by hand if you need it.
+
+### What's never copied
+
+- **Steam sign-in:** `steam.token`, `config/config.vdf`, `loginusers.vdf`,
+  `registry.vdf` and `ssfn*` files.
+- **Keys and passwords:** `~/.ssh`, `~/.gnupg`, keyrings and KWallet, any
+  `*.token`, `*.key` or `*.pem` file, Tailscale state and proxy settings
+  (`secrets.env`). These are refused by name wherever they turn up, including
+  inside a game's folder, and a restore refuses them too.
+- Games, Proton and the Steam runtimes: reinstall them from Steam.
+- Steam Cloud's own folders (`userdata/<account>/<appid>`), shader caches and
+  screenshots (**Tools → Capture & Live** saves those to Pictures).
+- Android apps themselves, their OBB files and shared storage (`/sdcard`).
+- Symbolic links (never followed), and single files over 2 GiB.
+
+Backups aren't encrypted. Game folders can still hold a launcher's login, and
+Android app data can hold an app's, so keep backups private.
+
+Android apps that are open are skipped (the helper needs the app closed); close
+them and back up again.
+
+## Restore after a factory reset
+
+1. Set up the headset again: Developer Mode, **Set Up Connection**, sign in to
+   Steam with the same account.
+2. Reinstall your games, and **start each once** so Proton creates its folders.
+3. Reinstall your Android apps from Frame Control.
+4. **Tools → Backup & recovery → Restore…** on a backup. Frame Control checks
+   each part against the headset and says what it would do: how many files it
+   replaces and how many are new.
+5. Tick the parts to restore and **Restore selected**. It asks before replacing
+   anything.
+
+Parts that can't go back yet are skipped, not failed, with the reason:
+
+| Reason | What to do |
+|---|---|
+| Install the game first | Install it from Steam, then restore |
+| Start the game once | Proton hasn't made its folders yet; start the game, quit, restore |
+| Sign in to Steam first | Controller layouts go under your account's folder |
+| Install the app first / close the app first | Android app data needs the app installed and closed |
+| The backup file doesn't match its checksum | The archive changed since it was made |
+
+A restore writes only the files in the parts you chose, and only inside that
+part's folders: it never deletes a file, and a save archive can't write outside
+its game. Before replacing a file it copies the current one to
+`~/.local/share/frame-control/restore-previous/<time>/` on the headset. Files
+already identical are left alone. Android app data goes through the existing
+`restore-data` helper, which keeps the previous data folder beside it.
+
+## Stuck in Desktop Mode
+
+On the Frame, Game Mode is gamescope running Steam, and the Linux desktop
+normally runs *inside* it as one panel (`steamos-nested-desktop`, see
+[how-the-frame-works.md](how-the-frame-works.md#the-layer-cake)). If that panel
+is what you see, you're already in Game Mode: close it from the Steam dashboard.
+
+Full Desktop Mode is a different session. **Check** reads the main user's
+systemd session targets over SSH: `gamescope-session.target` and
+`plasma-workspace-wayland.target`. Game Mode requires the former active and the
+latter inactive; Desktop Mode requires the reverse. This takes precedence over
+process names: full Desktop Mode can run gamescope for its VR overlay, and
+Game Mode can run a nested Plasma panel. Check changes nothing.
+
+Conflicting, transitional, failed or unreadable targets produce **unknown**.
+On older images where both targets are explicitly absent, the fallback accepts
+only gamescope without Plasma/nested desktop as Game Mode, or Plasma without
+gamescope/nested desktop as Desktop Mode. Mixed processes remain unknown.
+The SDDM autologin file is still reported as a login preference; it cannot
+establish which session is running.
+
+After confirmation, **Return to Game Mode** runs exactly
+`steamosctl switch-to-game-mode` when available, or the older
+`holo-session-select gamescope` / `steamos-session-select gamescope` command.
+It closes the desktop and anything open in it. Frame Control never edits the
+SDDM files itself, and runs no switch when the headset is in Game Mode, when
+its mode is unknown, or when no supported switch command is installed. A
+refused command reports an error; a request being sent does not verify that
+the new session has started.
+
+### Manual fallback
+
+If the button can't help, or the headset isn't reachable:
+
+1. **Restart it:** hold Power about 10 seconds until the light goes off, then
+   power on. On the Steam Deck, **Switch to Desktop** starts a one-shot
+   Desktop Mode session, so a restart brings Game Mode back. That the Frame
+   behaves the same is **inferred**, not tested.
+2. **Over SSH** (Developer Mode on), run Valve's switch yourself:
+   `ssh frame steamosctl switch-to-game-mode` (verified on SteamOS 0.5.6).
+   Older images may instead provide `steamos-session-select gamescope` or
+   `holo-session-select gamescope`.
+3. **Boot menu:** hold Power 10 seconds, then power on while holding the AUX
+   button on top of Power. Choose `Current`, or `Previous` to start the other
+   SteamOS slot; both keep your data. Details and the further options
+   (`Repair Steam Installation`, `Erase User Data`, a full re-image) are in
+   [how-the-frame-works.md](how-the-frame-works.md#facts-worth-knowing) and
+   [recovery-and-images.md](recovery-and-images.md). Back up first if you can:
+   `Erase User Data` is a factory reset.
+
+## Verification
+
+`tests/test_backup.py` runs the headset-side script (`ui/frame_backup_remote.py`)
+for real against a folder laid out like the Frame's home, with only SSH faked:
+which paths are picked, that sign-in files and keys never are (also inside game
+folders), links never followed, the manifest and its checksums, restore checks
+after a reset (game not installed, no Proton folders yet, not signed in), that a
+restore replaces only its own files and keeps the old ones, unsafe archives
+(`..`, absolute paths, links, other games' folders) writing nothing, backup
+names that try to leave the backups folder, and the exact Game Mode command.
+`tests/e2e/test_recovery_kit.py` backs up a Proton save from the fake Frame through
+the server, deletes it and restores it. Neither involves a real headset.
+
+Isolated session tests in the same suite reproduce full Plasma plus gamescope,
+Game Mode with and without the nested desktop, conflicting/transitional targets,
+missing targets on older builds, failed/timed-out systemd reads, selector
+compatibility, and the confirmed Return action with SSH mocked. Run them with
+`python3 -m unittest discover -s tests -p test_backup.py -v`.
@@ -0,0 +1,59 @@
+# Battery and health monitoring
+
+Open **Control Center → Battery & thermal health**, or expand **System
+information**, to read the Frame's charge, charging state, signed battery
+power, battery temperature and driver-reported health. Optional readings show
+charge cycles, full charge capacity, design capacity and full / design capacity.
+The existing battery chip also shows charging state and temperature.
+
+These are read-only readings from the Linux host's `/sys/class/power_supply`,
+not Android's container battery view. The probe prefers the documented Frame
+fuel gauge, `max1720x_bat_7-36`, over other battery nodes, excludes peripheral
+(`scope=Device`) and absent batteries, and otherwise uses a deterministic
+battery fallback. The UI shows the selected source path.
+
+| Reading | Linux attribute | Interpretation |
+|---|---|---|
+| Charge | `capacity` | Integer 0–100 percent; zero is a real reading |
+| Charging state | `status` | Charging, Full, Discharging or Not charging; missing/unknown states stay unavailable |
+| Battery power | `voltage_now × current_now` | Microvolts and microamps converted to signed watts; positive means charging on the Frame |
+| Temperature | `temp` | Tenths of a degree Celsius, including valid negative readings |
+| Battery health | `health` | Driver status such as Good or Overheat; not a wear percentage |
+| Charge cycles | `cycle_count` | Driver-reported count, including zero |
+| Full/design capacity | `charge_full`, `charge_full_design` | Microamp-hours converted to mAh |
+| Full / design capacity | Ratio of those two capacities | Fuel-gauge estimate; not a diagnosis or a guaranteed runtime |
+| Time estimate | `time_to_full_now`, `time_to_empty_now` | Seconds; displayed only for the corresponding charging/discharging state |
+
+Unavailable means the field is absent, unreadable or invalid. One missing
+sensor does not hide the others. Zero design capacity cannot produce a ratio. Time estimates outside 1 second
+to 7 days and battery temperatures outside −273.15 to 200 °C are rejected
+as invalid readings; these bounds are not thermal warning thresholds.
+The ratio may exceed 100% because full capacity is a gauge estimate, so the app
+does not clamp it or invent a wear warning. The app does not estimate health
+from charge percentage or assign temperature thresholds. Existing thermal
+alerts use the kernel's own hot/critical trip points.
+
+A connected charger does not necessarily mean charging: the Frame can still
+drain under load or sit idle near full charge. A 100% capacity reading alone
+does not prove the driver reports Full. Missing status is explicitly unknown;
+near-zero measured battery power with a charger is shown as not charging.
+Failed, stale or disconnected status samples clear Control Center readings.
+
+**No charge controls are provided.** Frame's SteamOS charge-limit backend is
+unsupported; see [charge-limit research](charge-limit.md). Monitoring never
+writes to power supplies, pauses charging, changes current or sets a limit.
+
+## Verification
+
+`tests/test_battery.py` uses temporary sysfs-like files for conversion,
+malformed/missing values, permission failures, source selection and partial
+sensor support. `tests/control_center.cjs` exercises charging states, optional
+metrics and failed/stale/disconnected sample handling. These tests do not
+connect to a headset. On 2026-10-24, the PR's uninstalled parser was also
+piped over SSH to a real Frame running SteamOS 0.5.6 (build
+`20261015.6141207`). Its read-only sysfs result selected
+`max1720x_bat_7-36` and reported 99% charge, Not charging, 24.9 °C,
+Good driver health, 14 cycles, 2,920 mAh full and 2,700 mAh design capacity
+(108.1% fuel-gauge estimate). The Control Center UI was not run against this
+headset; Windows and macOS were not tested. Optional fields are not claimed to
+be available on every firmware build.
@@ -0,0 +1,9 @@
+# Changelog
+
+## Unreleased
+
+- Battery monitoring now selects the Frame fuel gauge predictably, handles
+  missing or invalid readings, and shows optional cycle count, full/design
+  capacity and estimated capacity health in Control Center. Unknown charging
+  status stays explicit. Monitoring is read-only; charge limits remain
+  unsupported on Frame. The read-only parser was checked on a real Frame; the UI was not.
@@ -18,6 +18,9 @@ read-only checks below on a Frame running SteamOS 0.5.6 (build 20261015.6141207)
  `charging_enable` and `charging_pause`, both `root`-only (`-rw-r--r--`).
 - `deckard-charger.service` (Deckard Battery Charger service) is enabled and running.

+For safe read-only readings in Control Center, see [battery and health
+monitoring](battery-health.md). It does not provide charging controls.
+
 ## How Steam does it on other devices

 - Steam's **Settings → Power → Battery Charge Limit** shipped to the Deck in
@@ -97,6 +97,12 @@ The app rereads the gateway every 5 seconds and Tailscale's state every

 ## The connection, stage by stage

+When a connection fails, the header pill keeps its compact offline state and
+retry countdown; its tooltip and connection dialog contain the full reason.
+Devices shows a short reason in the headset row (with the full reason in its
+tooltip) and a wrapping recovery explanation in the selected headset's details.
+**Use this headset** also selects that headset's details.
+
 The connector runs in the server (`frame_link.Link`) and moves through:

 1. **Checking this computer's network**: gateway, Wi-Fi, this computer's IP, Tailscale.
@@ -0,0 +1,36 @@
+{
+  "date": "2026-10-24",
+  "base": "c7489a8 (v0.4.14)",
+  "feature": "Desktop Tools power and heat observations",
+  "automated": {
+    "targeted": "python3 -m unittest discover -s tests -p 'test_power*.py': 35 passed",
+    "uiAndResourceGuard": "node --test tests/power_desktop.cjs: 7 passed",
+    "desktopApp": "node --test app/test/*.test.js: 37 passed",
+    "packaging": "Materialized ui/scripts resources selected by app/package.json; isolated Python -I imported frame_power, constructed remote payload including frame_status, and read idle status. Missing resource detection tested. Shared phone bundle import passed.",
+    "syntax": "Python compilation, sampler shell syntax and git diff --check passed",
+    "fullSuite": "python3 -m unittest discover -s tests -v: 1363 tests, OK (skipped=15), 153.274 seconds",
+    "transientFailure": "An earlier full run had one nested sandbox-test failure: the existing OneServer second-server child exited -11 (SIGSEGV), expected 1. Isolated sandbox rerun passed (6 tests), then the complete suite passed. No unrelated server-lifecycle code was changed."
+  },
+  "browser": {
+    "environment": "T3 collaborative Chromium preview, Linux, local Python Handler server; synthetic observation subprocess at accelerated one-second intervals; normal headset SSH disabled during start/stop/download verification",
+    "observations": [
+      "Opened #powerReport and verified labeled duration selector, disabled Stop/downloads before start and accessible sample progress.",
+      "Started a synthetic observation and observed 11 of 12 samples in progress; completion allowed another start.",
+      "Started again, observed progress, stopped, and saw 7 of 12 samples retained with explicit incomplete state and original frame alias.",
+      "Clicked HTML download and saw the UI acknowledge the request; T3's download list did not record the blob download, so filesystem save was not verified.",
+      "Fetched all three authenticated export endpoints in the browser: HTML 200 (7599 characters), JSON 200 (2618 characters, 7 samples), CSV 200 (977 characters); each retained the stop reason."
+    ]
+  },
+  "realFrame": {
+    "lock": "ssh frame 'mkdir /tmp/frame-test.lock' succeeded before real-device probe; this task removed only that owned empty lock with rmdir after verification",
+    "probe": "Ran the production desktop Observation using strict, batch SSH to frame. The first attempt exposed a missing structured reason on early remote lock refusal; fixed and reran successfully.",
+    "result": "0 of 12 samples; running=false; stopped='Smoke session active (/tmp/frame-test.lock); no sensors read'. Exported HTML included the same incomplete reason.",
+    "scope": "Lock refusal only. No successful real sensor session, installation, app launch/stop, power control or thermal control was performed for this feature."
+  },
+  "limitations": [
+    "Native Electron installers were not built or launched; resource staging and build-hook contracts were tested.",
+    "One latest report is retained only in server memory. Starting again, restarting the server or quitting discards it; the UI warns users to download first.",
+    "Stopping ends only the owned local SSH process. The bounded remote reader discovers closure on its next write; immediate remote cancellation is not guaranteed.",
+    "Phone-hosted observation starts are unsupported; the shared server bundle still imports without desktop sampler resources."
+  ]
+}
@@ -0,0 +1,34 @@
+{
+  "date": "2026-10-24",
+  "scope": "Read-only three-sample HTML export and browser download check; no installs, app launches, or remote process-control commands",
+  "preflight": {
+    "smokeLock": "absent",
+    "version": "0.5.6",
+    "build": "20261015.6141207"
+  },
+  "command": "scripts/frame-power-sample.sh --count 3 --interval 1 --html /tmp/frame-power-export-check.html",
+  "exitCode": 0,
+  "sampleCount": 3,
+  "metricCount": 91,
+  "unavailableGroups": [
+    "proximity"
+  ],
+  "browser": {
+    "engine": "T3 collaborative Chromium preview",
+    "widths": [
+      1280,
+      390
+    ],
+    "jsonDownloadMatches": true,
+    "csvDownloadMatches": true,
+    "csvDataRows": 276,
+    "pageScripts": 0,
+    "horizontalOverflow": "confined to focusable table region"
+  },
+  "limits": [
+    "No real-device Ctrl+C cancellation test; local child termination and retained samples verified with subprocess fixtures",
+    "No screen-reader, Windows or macOS verification",
+    "No controlled baseline, load or worn-headset testing",
+    "Sensor accuracy not established"
+  ]
+}
@@ -0,0 +1,149 @@
+{
+  "date": "2026-10-24",
+  "osVersion": "0.5.6",
+  "osBuild": "20261015.6141207",
+  "commands": [
+    "scripts/frame-power-sample.sh --count 3 --interval 1",
+    "scripts/frame-power-sample.sh --count 1 --csv"
+  ],
+  "jsonSampleCount": 3,
+  "elapsedSeconds": [
+    0.078011,
+    1.088542,
+    2.107291
+  ],
+  "stopped": null,
+  "unavailableGroups": [
+    [
+      "proximity"
+    ],
+    [
+      "proximity"
+    ],
+    [
+      "proximity"
+    ]
+  ],
+  "selectedSummary": {
+    "battery.percent": {
+      "unit": "%",
+      "sources": [
+        "/sys/class/power_supply/max1720x_bat_7-36"
+      ],
+      "available": 3,
+      "unavailable": 0,
+      "min": 99,
+      "max": 99,
+      "mean": 99.0,
+      "first": 99,
+      "last": 99
+    },
+    "battery.status": {
+      "unit": "state",
+      "sources": [
+        "/sys/class/power_supply/max1720x_bat_7-36"
+      ],
+      "available": 3,
+      "unavailable": 0,
+      "states": [
+        "Not charging"
+      ]
+    },
+    "battery.tempC": {
+      "unit": "C",
+      "sources": [
+        "/sys/class/power_supply/max1720x_bat_7-36"
+      ],
+      "available": 3,
+      "unavailable": 0,
+      "min": 26.400000000000002,
+      "max": 26.400000000000002,
+      "mean": 26.4,
+      "first": 26.400000000000002,
+      "last": 26.400000000000002
+    },
+    "battery.watts": {
+      "unit": "W",
+      "sources": [
+        "/sys/class/power_supply/max1720x_bat_7-36"
+      ],
+      "available": 3,
+      "unavailable": 0,
+      "min": -0.12,
+      "max": -0.02,
+      "mean": -0.07,
+      "first": -0.02,
+      "last": -0.07
+    },
+    "cpu.percent": {
+      "unit": "%",
+      "sources": [
+        "/proc/stat"
+      ],
+      "available": 2,
+      "unavailable": 1,
+      "min": 8.7,
+      "max": 11.0,
+      "mean": 9.85,
+      "first": 11.0,
+      "last": 8.7
+    },
+    "fan.pwmRaw": {
+      "unit": "raw",
+      "sources": [
+        "/sys/class/hwmon/hwmon50/pwm1"
+      ],
+      "available": 3,
+      "unavailable": 0,
+      "min": 41,
+      "max": 41,
+      "mean": 41.0,
+      "first": 41,
+      "last": 41
+    },
+    "fan.slg4ax46073v.fan1_input": {
+      "unit": "RPM",
+      "sources": [
+        "/sys/class/hwmon/hwmon50/fan1_input"
+      ],
+      "available": 3,
+      "unavailable": 0,
+      "min": 8624,
+      "max": 8638,
+      "mean": 8628.666667,
+      "first": 8638,
+      "last": 8624
+    },
+    "proximity.raw": {
+      "unit": "raw",
+      "sources": [
+        "/sys/bus/iio/devices/iio:device2/in_proximity_raw"
+      ],
+      "available": 0,
+      "unavailable": 3,
+      "states": []
+    },
+    "rail.max34417_9_10.vph.power1": {
+      "unit": "W",
+      "sources": [
+        "/sys/class/hwmon/hwmon53/power1_input"
+      ],
+      "available": 3,
+      "unavailable": 0,
+      "min": 4.656299,
+      "max": 4.804066,
+      "mean": 4.705555,
+      "first": 4.656299,
+      "last": 4.804066
+    }
+  },
+  "csvRows": 92,
+  "csvSummaryMetrics": 91,
+  "csvHasExplicitUnavailable": true,
+  "limits": [
+    "Read-only short transport/parser check; no controlled baseline or worn/load/battery experiment.",
+    "Proximity unavailable; numeric thermistors are not proof of sensor accuracy.",
+    "No settings, services, device files or application state changed; no remote installation.",
+    "No smoke lock at preflight or sampler checks; advisory checks cannot exclude a concurrent lock appearing during a read."
+  ]
+}
@@ -0,0 +1,151 @@
+# Windows VM and real Frame test, 2026-10-24
+
+The v0.4.10 installer could enumerate windows/screens and encode a synthetic
+Media Foundation stream, but every desktop capture failed at pipeline parsing:
+`no property "capture-api" in element "d3d11screencapturesrc"`.
+MSYS2's GStreamer 1.28.8 package disables WGC. After the fix, the same installed
+bundle captured the actual Windows desktop with Desktop Duplication and sent
+H.264 to a real Frame: 219 sent frame records, 215 decoded and drawn before the
+snapshot. Individual windows are explicitly unavailable with this bundle.
+
+The base was `e9cbb8fd5555f5cfceeba1babadf2d7d35dcd3be` (`v0.4.10`, origin/main,
+including merged #121), in isolated branch `t3/test-windows-vm-headset`.
+
+## Evidence
+
+- [Capture before the fix](windows-vm-2026-10-24/capture-before.json): five
+  synthetic H.264 frames and five JPEG frames; zero desktop/window frames,
+  with the missing-property error for both codecs.
+- [Actual bundled properties](windows-vm-2026-10-24/plugin-properties.json):
+  `monitor-handle` exists; `capture-api`, `window-handle`, `show-border` do not.
+  [MSYS2 package build](https://github.com/msys2/MINGW-packages/blob/master/mingw-w64-gst-plugins-bad/PKGBUILD)
+  sets `-Dd3d11-wgc=disabled`. Upstream
+  [installs those properties conditionally](https://github.com/GStreamer/gstreamer/blob/main/subprojects/gst-plugins-bad/sys/d3d11/gstd3d11screencapturesrc.cpp).
+- [Capture after the fix](windows-vm-2026-10-24/capture-after.json): the real
+  display produces five H.264 and five JPEG frames. Window sources are hidden
+  with an explicit reason, and the display selects `capture_api=dxgi`.
+- [Raw locked headset session](windows-vm-2026-10-24/headset-session.json):
+  Windows helper, Media Foundation encoder, reverse SSH tunnel, production
+  panel launcher and shared viewer. The image below was captured from that
+  viewer's own X window on the Frame, rather than the VM's console.
+- [Windows tests](windows-vm-2026-10-24/windows-tests.txt) and
+  [guest system details](windows-vm-2026-10-24/windows-system.txt).
+
+![Windows VM desktop decoded in the Frame's own viewer](windows-vm-2026-10-24/headset-view.png)
+
+## Host and VM prerequisites
+
+lxso2: Intel Core i7-8700, 12 logical CPUs, VT-x/KVM; Docker 29.1.3 and Compose
+2.40.3. Before starting: 31 GiB RAM, 15 GiB available; 147 GiB free disk.
+Swap was already full. No other VM or service workload was started or stopped.
+Docker listed no Windows VM, and ports 2222/8006/13389 were unused.
+
+The execution sandbox hid KVM and denied Docker/network access. Checks outside
+it found `/dev/kvm`, `/dev/net/tun` and the Docker daemon. Direct user access to
+KVM was denied, but a disposable Docker container with `--device /dev/kvm`
+opened it successfully; no host permissions changed.
+
+Created only `frame-winvm-priority3`, labelled
+`frame-control.task=priority3-windows-test`: 4 vCPUs, 8 GiB guest RAM, 32 GiB
+growable disk, no restart, 150-second stop timeout. SSH 2222 and console 8006
+bind only 127.0.0.1; RDP is unpublished. No GPU passthrough. Image:
+`dockurr/windows@sha256:16fd7c39a3e48bb946d29c59dc6015942e5b900a1fa5d7e5552053bfc48ee2ea`
+(Windows for Docker v6.06, QEMU v11.1.1).
+
+The container downloaded Windows 11 from Microsoft, with no activation changes.
+It took about 16 minutes to reach the first desktop. Guest build 26200.8037,
+Red Hat VirtIO GPU DOD driver 100.103.104.30200. The old WindowsProductName
+registry field still says Windows 10 Pro; the actual desktop/setup is Windows
+11. After installing the app, the 32 GiB disk had about 9.3 GB free.
+
+Official `Frame-Control-Setup-x64.exe` v0.4.10 SHA-256:
+`30165bc5aa39f941cacc697d195dc5c30b01ad0b9ffb472da8a18a5220549202`.
+Its installer exited 0. The VM stream used an intermediate Python/UI-only
+fix with the released DLL bundle and bundled Python 3.12.14. A later CI failure
+showed that probing GStreamer through a separately loaded DLL could see a
+different, uninitialized instance. The final fix probes optional properties
+through the capture DLL itself. Windows CI checks that native change; the VM
+stream was not repeated with the final DLL.
+
+OEM setup added OpenSSH Server, PowerShell and a dedicated public login key;
+password authentication is disabled. Its config needed an explicit
+`AuthorizedKeysFile C:/ProgramData/ssh/administrators_authorized_keys` before
+key login worked. The default informational share was replaced with a private
+writable staging share inside this container. These were test-VM setup steps,
+not app defects. Host setup files and the stopped VM disk are retained under
+`/tmp/frame-winvm-priority3/`; no private keys are committed or printed.
+The Frame test key was generated inside Windows and its private key stayed
+there. Only its public key was temporarily authorized on the Frame. After
+testing, the guest key and scheduled task were removed; `docker stop -t 150`
+shut down the dedicated VM. Inspection confirmed `exited`, restart `no`
+(container exit 143; logs show the ACPI shutdown signal, waiting for Windows,
+and `Shutdown completed!`). The disk is retained
+for reuse; the VM is not running.
+
+## Checks
+
+- Baseline PC-focused suite: 24 tests passed, one native class skipped.
+- After fix: full Linux unittest suite **1260 tests, OK, 15 skipped**, 144.366 s;
+  focused final PC suite **27 tests, OK, one native class skipped**. The C
+  controller's frozen 600-state trace ran on Linux.
+- Actual Windows installer bundle with the intermediate Python/UI fix:
+  **33 tests, OK, four skipped** (no C compiler, Linux PipeWire test, two
+  CI-only x264 tests). Its GObject property probe, host/encoder check and
+  x264-absence check ran. The final native probe is checked in the PR's
+  Windows CI build, not by this VM run.
+- Browser check with the real production HTML/JavaScript and mocked Windows API
+  responses: DXGI whole-screen Show remains available, the limitation appears
+  once, WGC window sources retain Show, off hides controls, and the limitation
+  text is escaped. This used a static asset server, without headset API access.
+- `node --test app/test/*.test.js`: passed, three test files.
+- `node --test site/test/*.test.mjs`: passed, one test file.
+- The first full Linux run inside the sandbox failed (11 failures, 139 errors),
+  including loopback socket `PermissionError`. The successful full runs were
+  outside that socket restriction.
+- An initial guest test archive omitted `apk-catalog`, causing one import
+  error; the complete archive produced the 33-test passing Windows run.
+
+Raw local logs: `/tmp/frame-windows-{pc,app,site}-tests.log`,
+`/tmp/frame-windows-full-tests-unrestricted.log`,
+`/tmp/frame-windows-full-fixed-tests.log`, and
+`/tmp/frame-winvm-priority3/`. The committed artifacts above preserve the
+capture, Windows test and headset evidence independently of those local files.
+
+## Shared Frame session and cleanup
+
+Read-only checks first: SteamOS 0.5.6, BUILD_ID `20261015.6141207`, battery 99%,
+Not charging (another supply reports Full). The lock was free.
+
+Both attempts acquired `/tmp/frame-test.lock` atomically before any key or
+viewer changes, and removed only the lock acquired by this task. The first,
+35-second attempt failed because the test wrapper sent CRLF script input and
+left SSH stdin open. Production already sends script bytes and closes stdin;
+correcting the wrapper resolved both. Its key was removed and lock released.
+
+The successful session held the lock **03:09:36–03:10:05 UTC (29 seconds)**.
+It used a dedicated `pc-view-priority3` profile and port range 47960–47964,
+leaving existing viewers/profiles alone. The app's Windows `PCView` captured
+`display:65537`, 1280×800, Light preset (30 fps ceiling), and opened panel
+`valve.steam.desktopgame.2001396898`. The viewer reported H.264 software decode,
+218 received frames, 215 decoded/drawn before the snapshot (219 sent records).
+
+This mostly idle, roughly ten-second sample reported 19 fps and content delay
+p50/p95 51.6/75.2 ms. These are observations, not a performance-target pass.
+
+Cleanup stopped the helper and tunnel, closed the own viewer, removed its two
+possible profile paths and log, then removed the exact public-key line. The
+`authorized_keys` SHA-256 was identical before/after. A follow-up login from
+Windows with that key failed with exit 255. Separate checks found no task-owned
+viewer processes, the profile absent, and the shared lock released. Battery
+remained 99%; the sampled gamescope focus properties matched before/after.
+No reboot, global settings changes, game launch or Steam/SteamVR stop occurred.
+
+## Limits
+
+This verifies a Windows VM's desktop capture, Media Foundation encoding and
+real Frame viewer decode/rendering. It does not verify physical-PC hardware
+encoding, WGC or individual-window capture, mixed DPI, multiple displays,
+physical laser alignment/clicks, keyboard layouts, resize/minimise, busy-scene
+performance, bitrate/encoder restarts, or worn-headset comfort. No input was
+injected during the real Frame session. The installed app’s Tools navigation was not exercised; its streaming
+controller, tunnel and viewer were exercised directly. No independent review was performed.
@@ -0,0 +1,53 @@
+{
+  "python": "3.12.14 (main, Sep 24 2026, 17:57:31) [MSC v.1944 64 bit (AMD64)]",
+  "resources": "C:\\Users\\frame\\AppData\\Local\\Programs\\Frame Control\\resources",
+  "elements": {
+    "d3d11screencapturesrc": true,
+    "mfh264enc": true,
+    "jpegenc": true,
+    "x264enc": false
+  },
+  "windowCaptureReason": "Individual windows are unavailable in this build. Choose a whole screen instead.",
+  "windows": [],
+  "displays": [
+    {
+      "src": "display:65537",
+      "name": "Display 1",
+      "x": 0,
+      "y": 0,
+      "w": 1280,
+      "h": 800,
+      "capture_api": "dxgi"
+    }
+  ],
+  "runs": [
+    {
+      "source": "test",
+      "codec": "h264",
+      "frames": 5,
+      "pipeline": "videotestsrc name=source is-live=true pattern=ball ! video/x-raw,framerate=30/1 ! queue name=raw_queue leaky=downstream max-size-buffers=1 max-size-bytes=0 max-size-time=0 ! identity name=gate ! videoconvert ! videoscale add-borders=false ! video/x-raw,width=640,height=360,format=NV12 ! mfh264enc name=enc low-latency=true bframes=0 gop-size=60 bitrate=1000 ! h264parse config-interval=-1 ! video/x-h264,stream-format=byte-stream,alignment=au ! appsink name=out sync=false max-buffers=2 drop=false",
+      "last_bytes": 154
+    },
+    {
+      "source": "test",
+      "codec": "jpeg",
+      "frames": 5,
+      "pipeline": "videotestsrc name=source is-live=true pattern=ball ! video/x-raw,framerate=30/1 ! queue name=raw_queue leaky=downstream max-size-buffers=1 max-size-bytes=0 max-size-time=0 ! identity name=gate ! videoconvert ! videoscale add-borders=false ! video/x-raw,width=640,height=360 ! jpegenc name=enc quality=80 ! appsink name=out sync=false max-buffers=2 drop=false",
+      "last_bytes": 7336
+    },
+    {
+      "source": "display:65537",
+      "codec": "h264",
+      "frames": 5,
+      "pipeline": "d3d11screencapturesrc show-cursor=true monitor-handle=65537 ! video/x-raw,framerate=30/1 ! queue name=raw_queue leaky=downstream max-size-buffers=1 max-size-bytes=0 max-size-time=0 ! identity name=gate ! videoconvert ! videoscale add-borders=false ! video/x-raw,width=640,height=360,format=NV12 ! mfh264enc name=enc low-latency=true bframes=0 gop-size=60 bitrate=1000 ! h264parse config-interval=-1 ! video/x-h264,stream-format=byte-stream,alignment=au ! appsink name=out sync=false max-buffers=2 drop=false",
+      "last_bytes": 65
+    },
+    {
+      "source": "display:65537",
+      "codec": "jpeg",
+      "frames": 5,
+      "pipeline": "d3d11screencapturesrc show-cursor=true monitor-handle=65537 ! video/x-raw,framerate=30/1 ! queue name=raw_queue leaky=downstream max-size-buffers=1 max-size-bytes=0 max-size-time=0 ! identity name=gate ! videoconvert ! videoscale add-borders=false ! video/x-raw,width=640,height=360 ! jpegenc name=enc quality=80 ! appsink name=out sync=false max-buffers=2 drop=false",
+      "last_bytes": 113339
+    }
+  ]
+}
@@ -0,0 +1,96 @@
+{
+  "python": "3.12.14 (main, Sep 24 2026, 17:57:31) [MSC v.1944 64 bit (AMD64)]",
+  "resources": "C:\\Users\\frame\\AppData\\Local\\Programs\\Frame Control\\resources",
+  "elements": {
+    "d3d11screencapturesrc": true,
+    "mfh264enc": true,
+    "jpegenc": true,
+    "x264enc": false
+  },
+  "windows": [
+    {
+      "src": "window:131836",
+      "id": 131836,
+      "title": "Administrator: C:\\WINDOWS\\system32\\cmd.exe - powershell  -noprofile -executionpolicy bypass -file \\\\host.lan\\data\\bootstrap.ps1",
+      "app": "Windows",
+      "w": 1115,
+      "h": 628,
+      "x": 51,
+      "y": 52
+    },
+    {
+      "src": "window:327926",
+      "id": 327926,
+      "title": "Administrator: Install",
+      "app": "Windows",
+      "w": 979,
+      "h": 512,
+      "x": 85,
+      "y": 78
+    },
+    {
+      "src": "window:65856",
+      "id": 65856,
+      "title": "Program Manager",
+      "app": "Windows",
+      "w": 1280,
+      "h": 800,
+      "x": 0,
+      "y": 0
+    }
+  ],
+  "displays": [
+    {
+      "src": "display:65537",
+      "name": "Display 1",
+      "x": 0,
+      "y": 0,
+      "w": 1280,
+      "h": 800
+    }
+  ],
+  "runs": [
+    {
+      "source": "test",
+      "codec": "h264",
+      "frames": 5,
+      "pipeline": "videotestsrc name=source is-live=true pattern=ball ! video/x-raw,framerate=30/1 ! queue name=raw_queue leaky=downstream max-size-buffers=1 max-size-bytes=0 max-size-time=0 ! identity name=gate ! videoconvert ! videoscale add-borders=false ! video/x-raw,width=640,height=360,format=NV12 ! mfh264enc name=enc low-latency=true bframes=0 gop-size=60 bitrate=1000 ! h264parse config-interval=-1 ! video/x-h264,stream-format=byte-stream,alignment=au ! appsink name=out sync=false max-buffers=2 drop=false",
+      "last_bytes": 154
+    },
+    {
+      "source": "test",
+      "codec": "jpeg",
+      "frames": 5,
+      "pipeline": "videotestsrc name=source is-live=true pattern=ball ! video/x-raw,framerate=30/1 ! queue name=raw_queue leaky=downstream max-size-buffers=1 max-size-bytes=0 max-size-time=0 ! identity name=gate ! videoconvert ! videoscale add-borders=false ! video/x-raw,width=640,height=360 ! jpegenc name=enc quality=80 ! appsink name=out sync=false max-buffers=2 drop=false",
+      "last_bytes": 7336
+    },
+    {
+      "source": "display:65537",
+      "codec": "h264",
+      "frames": 0,
+      "pipeline": "d3d11screencapturesrc capture-api=wgc show-cursor=true show-border=true monitor-handle=65537 ! video/x-raw,framerate=30/1 ! queue name=raw_queue leaky=downstream max-size-buffers=1 max-size-bytes=0 max-size-time=0 ! identity name=gate ! videoconvert ! videoscale add-borders=false ! video/x-raw,width=640,height=360,format=NV12 ! mfh264enc name=enc low-latency=true bframes=0 gop-size=60 bitrate=1000 ! h264parse config-interval=-1 ! video/x-h264,stream-format=byte-stream,alignment=au ! appsink name=out sync=false max-buffers=2 drop=false",
+      "error": "no property \"capture-api\" in element \"d3d11screencapturesrc\""
+    },
+    {
+      "source": "display:65537",
+      "codec": "jpeg",
+      "frames": 0,
+      "pipeline": "d3d11screencapturesrc capture-api=wgc show-cursor=true show-border=true monitor-handle=65537 ! video/x-raw,framerate=30/1 ! queue name=raw_queue leaky=downstream max-size-buffers=1 max-size-bytes=0 max-size-time=0 ! identity name=gate ! videoconvert ! videoscale add-borders=false ! video/x-raw,width=640,height=360 ! jpegenc name=enc quality=80 ! appsink name=out sync=false max-buffers=2 drop=false",
+      "error": "no property \"capture-api\" in element \"d3d11screencapturesrc\""
+    },
+    {
+      "source": "window:131836",
+      "codec": "h264",
+      "frames": 0,
+      "pipeline": "d3d11screencapturesrc capture-api=wgc show-cursor=true show-border=true window-handle=131836 ! video/x-raw,framerate=30/1 ! queue name=raw_queue leaky=downstream max-size-buffers=1 max-size-bytes=0 max-size-time=0 ! identity name=gate ! videoconvert ! videoscale add-borders=false ! video/x-raw,width=640,height=360,format=NV12 ! mfh264enc name=enc low-latency=true bframes=0 gop-size=60 bitrate=1000 ! h264parse config-interval=-1 ! video/x-h264,stream-format=byte-stream,alignment=au ! appsink name=out sync=false max-buffers=2 drop=false",
+      "error": "no property \"capture-api\" in element \"d3d11screencapturesrc\""
+    },
+    {
+      "source": "window:131836",
+      "codec": "jpeg",
+      "frames": 0,
+      "pipeline": "d3d11screencapturesrc capture-api=wgc show-cursor=true show-border=true window-handle=131836 ! video/x-raw,framerate=30/1 ! queue name=raw_queue leaky=downstream max-size-buffers=1 max-size-bytes=0 max-size-time=0 ! identity name=gate ! videoconvert ! videoscale add-borders=false ! video/x-raw,width=640,height=360 ! jpegenc name=enc quality=80 ! appsink name=out sync=false max-buffers=2 drop=false",
+      "error": "no property \"capture-api\" in element \"d3d11screencapturesrc\""
+    }
+  ]
+}
@@ -0,0 +1,65 @@
+{
+  "gstreamer": "1.28.8",
+  "plugins": [
+    "coreelements",
+    "videotestsrc",
+    "videoconvertscale",
+    "app",
+    "jpeg",
+    "videoparsersbad",
+    "d3d11",
+    "mediafoundation"
+  ],
+  "packages": [
+    "mingw-w64-ucrt-x86_64-gst-plugins-bad 1.28.8-2",
+    "mingw-w64-ucrt-x86_64-gst-plugins-bad-libs 1.28.8-2",
+    "mingw-w64-ucrt-x86_64-gstreamer 1.28.8-1"
+  ],
+  "elements": {
+    "d3d11screencapturesrc": {
+      "name": "The name of the object",
+      "parent": "The parent of the object",
+      "blocksize": "Size in bytes to read per buffer (-1 = default)",
+      "num-buffers": "Number of buffers to output before sending EOS (-1 = unlimited)",
+      "typefind": "Run typefind before negotiating (deprecated, non-functional)",
+      "do-timestamp": "Apply current stream time to buffers",
+      "automatic-eos": "Automatically EOS when the segment is done",
+      "monitor-index": "Zero-based index for monitor to capture (-1 = primary monitor)",
+      "monitor-handle": "A HMONITOR handle of monitor to capture",
+      "show-cursor": "Whether to show mouse cursor",
+      "crop-x": "Horizontal coordinate of top left corner for the screen capture area",
+      "crop-y": "Vertical coordinate of top left corner for the screen capture area",
+      "crop-width": "Width of screen capture area (0 = maximum)",
+      "crop-height": "Height of screen capture area (0 = maximum)"
+    },
+    "d3d12screencapturesrc": null,
+    "mfh264enc": {
+      "name": "The name of the object",
+      "parent": "The parent of the object",
+      "qos": "Handle Quality-of-Service events from downstream",
+      "min-force-key-unit-interval": "Minimum interval between force-keyunit requests in nanoseconds",
+      "bitrate": "Bitrate in kbit/sec",
+      "rc-mode": "Rate Control Mode",
+      "adaptive-mode": "Adaptive Mode",
+      "vbv-buffer-size": "VBV(HRD) Buffer Size in bytes (0 = MFT default)",
+      "max-bitrate": "The maximum bitrate applied when rc-mode is \"pcvbr\" in kbit/sec",
+      "quality-vs-speed": "Quality and speed tradeoff, [0, 33]: Low complexity, [34, 66]: Medium complexity, [67, 100]: High complexity",
+      "cabac": "Enable CABAC entropy coding",
+      "sps-id": "The SPS id to use",
+      "pps-id": "The PPS id to use",
+      "bframes": "The maximum number of consecutive B frames",
+      "gop-size": "The number of pictures from one GOP header to the next. Depending on GPU vendor implementation, zero gop-size might produce only one keyframe at the beginning (-1 for automatic)",
+      "threads": "The number of worker threads used by a encoder, (0 = MFT default)",
+      "content-type": "Indicates the type of video content",
+      "qp": "QP applied when rc-mode is \"qvbr\"",
+      "low-latency": "Enable low latency encoding",
+      "min-qp": "The minimum allowed QP applied to all rc-mode",
+      "max-qp": "The maximum allowed QP applied to all rc-mode",
+      "qp-i": "QP applied to I frames",
+      "qp-p": "QP applied to P frames",
+      "qp-b": "QP applied to B frames",
+      "ref": "The number of reference frames",
+      "d3d11-aware": "Whether device can support Direct3D11 interop"
+    }
+  }
+}
@@ -0,0 +1,18 @@
+
+WindowsProductName WindowsVersion OsBuildNumber
+------------------ -------------- -------------
+Windows 10 Pro     2009           26200        
+
+
+
+Name                              DriverVersion     Status
+----                              -------------     ------
+Red Hat VirtIO GPU DOD controller 100.103.104.30200 OK    
+
+
+
+       Used       Free
+       ----       ----
+23951253504 9314816000
+
+
@@ -0,0 +1,79 @@
+python.exe : test_original_mac_congestion_and_recovery 
+(test_pc_controller.ControllerTrace.test_original_mac_congestion_and_recovery) ... skipped 'C 
+compiler not installed; native build jobs cover this trace'
+At line:12 char:1
+ & $python -B -m unittest discover -s tests -p 'test_pc*.py' -v 2>&1 | ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+    + CategoryInfo          : NotSpecified: (test_original_m...ver this trace':String) [], Remote 
+   Exception
+    + FullyQualifiedErrorId : NativeCommandError
+ 
+test_controller_is_inert_after_close 
+(test_pcview.AdapterTests.test_controller_is_inert_after_close) ... ok
+test_dxgi_only_bundle_captures_displays_without_optional_wgc_properties (test_pcview.AdapterTests.
+test_dxgi_only_bundle_captures_displays_without_optional_wgc_properties) ... ok
+test_idle_source_is_not_a_stall (test_pcview.AdapterTests.test_idle_source_is_not_a_stall) ... ok
+test_library_path_prepend_adds_no_empty_entry 
+(test_pcview.AdapterTests.test_library_path_prepend_adds_no_empty_entry) ... ok
+test_linux_uses_only_portal_fd_and_node 
+(test_pcview.AdapterTests.test_linux_uses_only_portal_fd_and_node) ... ok
+test_malformed_viewer_input_is_dropped_not_fatal 
+(test_pcview.AdapterTests.test_malformed_viewer_input_is_dropped_not_fatal) ... ok
+test_pc_card_receives_window_capture_limitation 
+(test_pcview.AdapterTests.test_pc_card_receives_window_capture_limitation) ... ok
+test_pc_reuses_launcher_and_namespaces_panel_ids 
+(test_pcview.AdapterTests.test_pc_reuses_launcher_and_namespaces_panel_ids) ... ok
+test_portal_input_clamps_and_releases_held_state 
+(test_pcview.AdapterTests.test_portal_input_clamps_and_releases_held_state) ... ok
+test_refused_windows_focus_never_clicks_the_covering_app 
+(test_pcview.AdapterTests.test_refused_windows_focus_never_clicks_the_covering_app) ... ok
+test_session_end_releases_native_input_only_once 
+(test_pcview.AdapterTests.test_session_end_releases_native_input_only_once) ... ok
+test_stats_keep_capture_time_and_bound_records 
+(test_pcview.AdapterTests.test_stats_keep_capture_time_and_bound_records) ... ok
+test_windows_release_and_negative_monitor_origin 
+(test_pcview.AdapterTests.test_windows_release_and_negative_monitor_origin) ... ok
+test_windows_sources_follow_actual_wgc_capabilities 
+(test_pcview.AdapterTests.test_windows_sources_follow_actual_wgc_capabilities) ... ok
+test_windows_uses_wgc_and_media_foundation 
+(test_pcview.AdapterTests.test_windows_uses_wgc_and_media_foundation) ... ok
+test_never_offered_off_windows_even_when_turned_on 
+(test_pcview.GatingTests.test_never_offered_off_windows_even_when_turned_on) ... ok
+test_off_by_default_starts_nothing (test_pcview.GatingTests.test_off_by_default_starts_nothing) 
+... ok
+test_only_windows_gets_the_pc_host (test_pcview.GatingTests.test_only_windows_gets_the_pc_host) 
+... ok
+test_server_enable_action (test_pcview.GatingTests.test_server_enable_action) ... ok
+test_turning_off_stops_streams_and_the_helper 
+(test_pcview.GatingTests.test_turning_off_stops_streams_and_the_helper) ... ok
+test_turning_on_checks_for_the_bundled_libraries 
+(test_pcview.GatingTests.test_turning_on_checks_for_the_bundled_libraries) ... ok
+test_expiry_and_stop_before_redeem (test_pcview.GrantsTests.test_expiry_and_stop_before_redeem) 
+... ok
+test_source_bound_retry_ack_and_stop 
+(test_pcview.GrantsTests.test_source_bound_retry_ack_and_stop) ... ok
+test_agent_reports_its_host_and_encoder 
+(test_pcview.NativeTests.test_agent_reports_its_host_and_encoder) ... ok
+test_auth_and_real_h264_stats (test_pcview.NativeTests.test_auth_and_real_h264_stats) ... skipped 
+'x264 is only in CI test bundles, not the installer'
+test_bundled_pipewire_context_needs_no_system_modules 
+(test_pcview.NativeTests.test_bundled_pipewire_context_needs_no_system_modules) ... skipped 
+'Linux PipeWire client libraries'
+test_installer_bundle_leaves_out_gpl_x264 
+(test_pcview.NativeTests.test_installer_bundle_leaves_out_gpl_x264) ... ok
+test_last_raw_picture_survives_a_closed_gate 
+(test_pcview.NativeTests.test_last_raw_picture_survives_a_closed_gate) ... skipped 'x264 is only 
+in CI test bundles, not the installer'
+test_native_property_probe_checks_the_instantiated_element 
+(test_pcview.NativeTests.test_native_property_probe_checks_the_instantiated_element) ... ok
+test_card_says_experimental_and_what_is_unverified 
+(test_pcview.PageTests.test_card_says_experimental_and_what_is_unverified) ... ok
+test_opt_in_is_remembered_with_the_client_preferences 
+(test_pcview.PageTests.test_opt_in_is_remembered_with_the_client_preferences) ... ok
+test_tool_link_is_windows_only_and_marked_experimental 
+(test_pcview.PageTests.test_tool_link_is_windows_only_and_marked_experimental) ... ok
+
+----------------------------------------------------------------------
+Ran 33 tests in 1.684s
+
+OK (skipped=4)
@@ -62,6 +62,12 @@ refused with a message, so send big things as a file. An empty clipboard, or
 one holding an image, says so. Neither the server nor its log ever records what
 was on the clipboard.

-**Not tested on a headset yet.** Reading uses the same Klipper interface as
-sending, which was verified on 2026-09-25, but `getClipboardContents` itself
-hasn't been tried on a Frame. The fake Frame (`tests/fakeframe`) answers it.
+**Verified on a Frame, 2026-10-24:** SteamOS 0.5.6, build
+`20261015.6141207`. With a temporary nested desktop open, Frame Control sent
+a 47-character test marker to Klipper, then **Copy the headset's clipboard**
+read it through `getClipboardContents` and set a Linux PC's X11 clipboard.
+Reading that PC clipboard returned the exact marker. The prior headset
+clipboard was restored and the test desktop was closed. The PC side used a
+temporary X display on lxso2; macOS and Windows clipboard backends, a user's
+copy action in a headset app, and image/size error cases remain untested on a
+real headset. The fake Frame (`tests/fakeframe`) covers the protocol cases.
@@ -53,6 +53,11 @@ counts them while they run.
  `~/Videos/SteamFrame`, and **Steam clips**: export clips and background
  recordings from Steam's game recording at any length, without re-encoding.
  See [recording.md](recording.md). Not tested on a headset yet.
+- **Backup & recovery** (Tools): copy game saves, settings and Android app data
+  to `~/Documents/Frame Control Backups/<time>/` with a checksummed manifest,
+  restore chosen parts after a factory reset, and **Return to Game Mode** when
+  the headset is stuck in Desktop Mode. Sign-in files and keys are never copied.
+  Not tested on a headset yet. See [backup-and-recovery.md](backup-and-recovery.md).
 - **Battery** with charging state: charge rate in watts, time to full or empty,
  charger type and wattage (for example USB-C PD 20 W), and battery temperature.
 - **Status**: storage, memory, temperature, Wi-Fi, uptime, and whether SteamVR,
@@ -0,0 +1,177 @@
+# Frame doctor
+
+Run `scripts/frame-doctor.sh` from a checkout on macOS or Linux to diagnose
+first-time setup, pairing and common Frame failures without applying repairs.
+It needs Bash, Python 3 and OpenSSH on the computer, and Python 3 on the Frame.
+Windows users can run `python scripts/frame_doctor.py` with Python and OpenSSH
+installed; the desktop app does not bundle this command.
+
+```sh
+scripts/frame-doctor.sh
+scripts/frame-doctor.sh --alias bedroom --lan frame.local
+scripts/frame-doctor.sh --alias frame --lan 192.168.1.40
+```
+
+Use only addresses belonging to your intended headset. The command tries the
+existing `frame` SSH alias first (Tailscale if setup configured it that way),
+then `frame.local`, then USB-C at `10.86.200.233`. `--alias`, `--lan` and `--usb`
+override those defaults. It reports the successful path without printing its
+address. It neither discovers other devices nor enables Tailscale.
+
+The existing alias supplies the user, port, keys and known-hosts file. LAN and
+USB overrides preserve its `HostKeyAlias`, or its configured hostname if no
+alias was set. A first connection therefore needs trusted setup first. The
+doctor never accepts a new host key, deletes a saved key, generates keys or
+sends a pairing request. It uses your trusted OpenSSH configuration; OpenSSH
+can evaluate `Match exec` conditions in that configuration. Proxy commands,
+jumps, local commands, forwarding and connection sharing are disabled for
+these direct diagnostic connections.
+
+## Reading the result
+
+Each of the eleven runbook sections has one line: `OK`, `WARN`, `BROKEN` or
+`UNKNOWN`. `OK` means only that the stated check passed, not that the whole
+feature works. Optional features that are off may produce a warning.
+
+| Section | Read-only evidence and limits |
+|---|---|
+| 1. Boot and crash history | Previous-boot kernel-oops signatures; one day of coredump history. An oops alone does not prove an unclean reset. |
+| 2. Wi-Fi | NetworkManager's wlan0 state, without SSIDs or connection profiles. |
+| 3. Displays and SteamVR | DSI timeout signatures in the recent kernel journal; no display, compositor or game is launched. |
+| 4. Steam and storage | Free space in home and `devkit-game`, including separate mounts; missing Steam install marker. No CRC scan or restart. |
+| 5. Idle sleep and keep-awake | Existing keep-awake unit state; never takes ownership or changes idle timers. |
+| 6. Remote wake | WoWLAN state, without arming it or testing suspend. Wake with the power button. |
+| 7. Lepton | Recent port-clash, binder and data-clearing signatures; no Android/container commands. |
+| 8. Chromium XR | Crash history; no browser profile or environment inspection. |
+| 9. KDE Connect | Process presence; absence is normal when sharing is off. |
+| 10. Streaming and capture | ffmpeg crash history; no capture or encoder is started. |
+| 11. Panels | Always `UNKNOWN`: placement requires the user's visual confirmation. |
+
+Journal samples are capped at 2,000 entries; current-boot samples cover the
+last ten minutes. This can miss older or high-volume failures. Empty,
+inaccessible or permission-limited journals are `UNKNOWN`, never zero errors.
+Commands time out individually, and each SSH probe is bounded to 90 seconds.
+
+Exit codes: **0** if all reported checks are OK; **1** for warnings, broken or
+unknown checks after connecting; **2** if no authenticated SSH path exists or
+local SSH setup is unavailable. Panel verification currently means a connected
+run normally exits 1. Automation should read the labelled checks rather than
+treating a warning as proof the headset is unusable.
+
+## Read-only repair plan and before/after reports
+
+```sh
+scripts/frame-doctor.sh --plan --save-report before.json
+# Review the plan with the headset user. Any manual action is separate.
+scripts/frame-doctor.sh --plan --compare-before before.json --save-report after.json
+```
+
+`--plan` prints advice; it never executes repair commands or prompts for approval.
+There is no automatic repair mode. Advice about Wi-Fi, display timeouts, low
+storage, a missing Steam install marker or keep-awake requires the exact
+recognized section, severity and evidence. Other warnings request local review;
+unknown evidence never justifies a repair. A signature or missing marker alone
+does not establish a cause. Restart risk, rising counters or unknown counters
+block all section-specific plans and direct you to the recovery runbook.
+Nothing changes passwords, headset security, pairing, services or power settings.
+
+Reports are optional **local** JSON files containing only fixed diagnostic
+summaries, a format version and an opaque SSH-target configuration fingerprint.
+The fingerprint binds comparisons to the same alias, identity/routing
+configuration and fallback addresses; it does not prove physical headset
+identity or that the headset was not replaced behind that configuration. Keep
+using trusted SSH host keys. Report creation is exclusive (existing files and
+symlinks are refused), with owner-only permissions on POSIX. Protect reports
+using your local account permissions on Windows. Choose a fresh output filename
+for each run. Doctor never writes a report on the headset.
+
+`--compare-before` validates a bounded baseline before connecting and refuses
+changed target configuration. It prints each section's before/after status and
+prints both fixed evidence messages when they differ, even if the status
+stayed the same. Changes are observations, not proof a repair worked or caused them;
+recent journal windows can simply age out. There is no intervening repair by
+doctor, freshness guarantee, or authenticated report signature. If either run
+skipped deeper checks, comparison is blocked and no improvement is claimed.
+Unreachable or invalid probes produce no new baseline or comparison. Malformed
+baseline/target mismatch/report-write errors exit **2**; otherwise normal
+diagnostic exit codes apply. No saved report is needed for ordinary diagnostics.
+
+## First-time setup and pairing
+
+- **No SSH response:** wake the headset with its power button. Check the cable
+  or Steam Settings → Internet, then enable Developer Mode. Sleep and network
+  failure can look alike; a timeout cannot distinguish them.
+- **Key rejected:** open **Set Up Connection** in Frame Control. In the headset,
+  open Steam Settings → Developer → **Pair new host**, then approve setup's
+  request. The doctor only checks whether devkit port 32000 responds; that
+  does not prove pairing mode is open or the service is healthy.
+- **Unknown or changed identity:** verify the intended headset through setup
+  or Devices → **Check its key**. Do not delete `known_hosts` to bypass this.
+- **No devkit response:** check Developer Mode and the address. See
+  [SSH setup](ssh.md) for the manual fallback. The doctor cannot turn SSH on.
+
+No password is requested. Enter any password required by the separate setup
+flow only in its local terminal; never paste it into an issue or report.
+
+## Restart safety and recovery
+
+Before deeper checks, and again afterwards, the doctor samples Steam and
+SteamVR `NRestarts` and health-check tracker sizes two seconds apart. Rising
+counters stop diagnostics immediately. Nonempty health-check trackers also stop
+deeper checks even when stable, since a short sample could miss a slower loop.
+Missing counters or counters that reset stop deeper checks as `UNKNOWN`. Stable
+counters with empty trackers still cannot rule out a slower restart loop.
+
+The [historical runbook from PR #33](https://github.com/saphid/frame-control/blob/cce3d940302054ab5246c92d740afaefc4e58d38/docs/frame-doctor.md)
+is the source for these section numbers and observed signatures (September
+2026 builds). Its section 4 describes freezing and verifying health-check
+trackers before prolonged recovery during a live loop. That changes headset
+state, so this read-only implementation stops and directs you there instead.
+The optional plan and baseline comparison are a guarded next step for issue
+#34; automatic fixes and full recovery automation remain unimplemented. Review
+build-specific recovery instructions with the person using the headset; a repair can remove data.
+
+Never reload `ath12k`, suspend remotely, kill gamescope to diagnose a loop,
+reset or force power off during extraction/repair, or write passwords to disk.
+The doctor never restarts services, signals processes, repairs Steam, changes
+WoWLAN/standby settings, takes keep-awake ownership, installs anything or writes
+a remote report. Only `--save-report` creates a local file. Nothing needs
+restoring on the headset after its checks. Manual/device tests must
+follow the [shared-device lock and battery procedure](testing.md#headset-smoke-test).
+
+## Privacy and verification
+
+Only fixed diagnostic summaries leave the remote probe. Raw journals, process
+arguments, environment variables, SSH errors, account IDs, network addresses,
+SSIDs, keys and tokens are not printed. No telemetry or HTTP request is sent;
+the only pairing-service probe is a TCP connection. SSH produces normal access
+logs. Review summaries before sharing them; feature availability can still be
+personal information. Redirecting stdout or using `--save-report` saves a report
+only if you choose it.
+Treat the target fingerprint as private metadata; it is a hash, not encryption.
+
+Unit tests use mocked boundaries. `scripts/e2e.sh test_doctor` covers asleep,
+disk-full, SSH/devkit-off and missing-key faults against the fake Frame. Its
+stable restart counters are explicitly simulated, not proof about SteamOS.
+On 2026-10-24 the script ran read-only against a real Frame, SteamOS build
+`20261015.6141207`. It verified the configured SSH alias and key login,
+then reported `WARN Restart safety`: nonempty health-check trackers. It
+correctly skipped all eleven deeper sections and exited 1. No raw logs,
+addresses or keys were printed, and no repair or restart was attempted.
+This verifies the safety stop on that device; the deeper checks are not
+claimed as headset-tested.
+
+Follow-up verification on 2026-10-24: `--plan --save-report` and then
+`--plan --compare-before` ran read-only on the same real Frame. Both reported
+nonempty health-check trackers, skipped deeper checks and exited 1. The plan
+was blocked and the comparison reported `risk -> risk` without claiming
+improvement. No install, launch, stop or repair was performed; this validates
+the guarded report path, not the deeper checks or any manual repair.
+
+The follow-up's 17 focused offline tests passed. All five doctor fake-Frame
+tests passed, including a disk-full baseline followed by fault removal and a
+fresh comparison. The final evidence-output change also passed that comparison
+test again. Because zsh is unavailable on this host, the repository's images
+were built and its Compose harness run directly under the isolated project
+`frame-doctor-plan-34`; its containers and volumes were removed afterwards.
+These storage changes were fake fault controls, not doctor repairs.
@@ -0,0 +1,91 @@
+# Game storage
+
+Open **Tools → Game storage** for a read-only snapshot of the headset's user
+filesystem and Steam libraries. Refresh after an installation, download or move.
+The page never moves, deletes or modifies content, starts Steam, requests root,
+or recursively scans game files. It works through the existing SSH connection.
+
+## What the numbers mean
+
+- **Total, free and used** come from `statvfs` on the headset user's home and
+  each library path. Free is space available to that user; reserved blocks mean
+  used + free can be less than total. These are filesystem sizes, not advertised
+  drive capacity, and do not include separate system partitions.
+- Libraries come from `~/.local/share/Steam/steamapps/libraryfolders.vdf` plus
+  the default Steam library. Modern nested and older numbered-path records are
+  accepted; canonical duplicate paths are shown once. No drive is mounted.
+- Two paths can share one filesystem. Their capacity must **not** be added.
+  An unmounted drive whose mount directory still exists can report the parent
+  filesystem's capacity: the page labels this as the filesystem containing the
+  path, rather than claiming the removable drive is connected.
+- Game sizes are Steam's `SizeOnDisk` records in `appmanifest_<appid>.acf`, sorted
+  largest first, with unknown sizes last. A missing, negative or invalid size
+  is **Unknown**, while an explicit zero remains zero. Records may be stale,
+  including during downloads or moves; they do not measure allocated blocks.
+- Games/apps and runtimes/tools have separate subtotals of **known recorded**
+  sizes. Runtime classification uses names (Proton, Steam Linux Runtime,
+  Steamworks Common, FEX and Lepton Development), so it is only a convenience.
+  Additional apps or runtimes may fall in the game/app group.
+- Saves, Proton prefixes, shaders, workshops, downloads, Android apps,
+  sideloaded games, media and OS files are **unmeasured other usage**. The page
+  does not subtract manifest totals from filesystem usage to invent a size for
+  them. Recorded content is not an exhaustive storage breakdown.
+
+Permission denied, missing/disconnected paths, unavailable filesystem reads,
+invalid metadata and partial inventories are reported separately. A failed read
+is never proof of an empty library. If library discovery fails, other libraries
+may be missing from the view. Refresh clears the old results immediately; a
+headset switch clears the snapshot and ignores late replies from the old device.
+
+## Moving a game safely
+
+Use Steam's own **Settings → Storage** on the headset (or in desktop Steam):
+choose the source drive, select the games and choose **Move**, then pick a
+Steam-supported destination. A second Steam library must already be available.
+Steam may withhold Move or a destination when it cannot perform the operation.
+Let Steam finish, follow Steam's errors/recovery prompts, then Refresh here.
+Do not manually delete files to make room or interrupt an in-progress move.
+
+[Valve's moving guide](https://help.steampowered.com/en/faqs/view/4BD4-4528-6B2E-8327#move)
+was read in a browser on 2026-10-24 and documents this UI. This is an instructional
+handoff: the page does not send a URI or silently open a UI on the headset.
+The guide's separate Windows instructions for moving the entire Steam client
+are outside this feature's scope.
+
+### Why Frame Control does not automate moving
+
+The repository's Valve devkit tools register and launch developer titles; no
+supported game-move operation is provided there. The existing Steam CEF bridge
+uses internal client APIs, which are not a verified supported contract for a
+move transaction. [Valve's public ISteamApps reference](https://partner.steamgames.com/doc/api/ISteamApps) provides install-directory
+and installed-depot queries but no documented move transaction with completion,
+cancellation, rollback and error guarantees. The public support guide describes
+the user-operated Storage UI, rather than such an automation interface.
+
+Consequently this feature adds no move endpoint or guessed internal Steam call,
+manifest rewrite, copy/delete fallback, or custom rollback. Automating a move
+requires a supported interface and verified behaviour for full disks, disconnects,
+running games, downloads, cancellation and Steam restart first.
+
+## Verification and limits
+
+`tests/test_storage.py` runs the actual probe against temporary Steam metadata
+and filesystem/error fixtures. It covers multiple libraries, duplicate paths,
+zero/unknown/invalid sizes, corrupt manifests, unreadable directories and files,
+missing discovery/drives, reserved capacity and read-only file preservation.
+A loopback HTTP test executes the real guarded endpoint with SSH mocked.
+`tests/storage.cjs` runs the production renderer, navigation and refresh handlers
+with DOM/transport boundaries faked, including escaping, offline errors,
+out-of-order refreshes and headset switches. It runs through unittest discovery.
+
+The production storage component was rendered with synthetic data at 390px and
+900px widths; both fit without horizontal overflow. This checks component
+layout, not the full connected application or headset browser.
+
+On 2026-10-24 the uninstalled storage parser was piped read-only over SSH
+to a real Frame running SteamOS build `20261015.6141207`. It reported
+710.4 GiB free on the user filesystem, one available Steam library, 29
+readable app manifests, zero unknown sizes and zero parse/permission issues.
+No game names or raw metadata were printed in the test report. The
+connected UI, removable media, Steam's Move UI and an actual game move were
+not tested. UI and error-state fixtures remain synthetic.
@@ -96,5 +96,6 @@ ssh frame 'cat /opt/steamvr/resources/webinterface/dashboard/localization/dashbo
 - Remote access from anywhere: [tailscale.md](tailscale.md)
 - Floating windows in space: [panels.md](panels.md)
 - Recovery images, what's in them, testing without the headset: [recovery-and-images.md](recovery-and-images.md)
+- Backing up saves and settings, restoring after a reset, leaving Desktop Mode: [backup-and-recovery.md](backup-and-recovery.md)
 - Frame Control on iPhone (the server running on the Frame itself): [iphone.md](iphone.md)
 - What's still unverified: [open-questions.md](open-questions.md)
@@ -4,7 +4,8 @@ Frame Control can show any Mac window, or a whole Mac screen, as its own panel
 in the Steam Frame. You place each panel anywhere in the room with the SteamVR
 dashboard. The laser clicks and drags, the thumbstick scrolls, and you type on
 the Mac's own keyboard. Find it under **Tools → Mac in the headset** (macOS
-only).
+only). On Windows there's an experimental port,
+[PC in the headset](pc-in-headset.md).

 The confidence labels are the same as in [ssh.md](ssh.md).

@@ -0,0 +1,155 @@
+# PC in the headset (Experimental)
+
+**Tools → PC in the headset**, on Windows only. It's the Windows version of
+[Mac in the headset](mac-in-headset.md): a whole screen on your PC
+becomes its own SteamVR panel in the Frame. Individual windows are available only
+with streaming libraries built with Windows Graphics Capture (WGC); the shipped
+MSYS2 libraries disable WGC, so this build explains that limitation and offers
+whole screens. Place the panel with the dashboard's Float
+in World, Move and Size, point and click with the laser, scroll with the
+thumbstick, and type on the PC's keyboard.
+
+**It's experimental.** A Windows 11 VM has captured its real desktop with
+Desktop Duplication and encoded it with Media Foundation and JPEG. Physical PCs,
+hardware encoding and physical laser input remain unverified. See
+[the dated evidence](evidence/windows-vm-2026-10-24.md) for results and limits.
+Reports are welcome through the
+[feedback form](https://frame-control.pages.dev/feedback/).
+
+## Turning it on
+
+It's off by default. Until you tick **Turn on PC in the headset** on the card,
+Frame Control starts no helper, loads none of the streaming libraries and lists
+no windows. The choice is remembered on this computer. Turning it off ends
+every stream, closes the viewers in the headset and stops the helper.
+
+The card and its Tools link only appear in the Windows app. On macOS the card
+is Mac in the headset, as before; on Linux and the iPhone app there's no card.
+
+## How it works
+
+The ported pieces are from [PR #38](https://github.com/saphid/frame-control/pull/38).
+Frame Control owns the host helper, input, authentication, streaming protocol,
+panel launcher and adaptation. It doesn't need Sunshine, OBS or any other
+streaming app. GStreamer is bundled as ordinary libraries.
+
+| | Windows |
+|---|---|
+| Capture | GStreamer's `d3d11screencapturesrc`: Desktop Duplication for whole screens in the shipped build; Windows.Graphics.Capture by window (HWND) or screen (HMONITOR) when that implementation is present |
+| Encoding | Media Foundation's H.264 encoder (`mfh264enc`), low latency, no B-frames. Whether it uses the GPU depends on the PC; **not verified** |
+| Input | `SendInput`, mapped through the source's bounds, with per-monitor DPI awareness |
+
+API references:
+[Windows capture](https://learn.microsoft.com/en-us/windows/uwp/audio-video-camera/screen-capture),
+[GStreamer WGC](https://gstreamer.freedesktop.org/documentation/d3d11/d3d11screencapturesrc.html),
+[Media Foundation encoder](https://gstreamer.freedesktop.org/documentation/mediafoundation/mfh264enc.html).
+
+It needs Windows 10 or 11 with Desktop Duplication and a Media Foundation
+H.264 encoder (Windows "N" editions need the Media Feature Pack). WGC-enabled
+builds can also capture individual windows. Clicks and
+keys can't reach administrator apps or the sign-in screen, which an ordinary
+process can't drive. If Windows won't bring the chosen window to the front,
+input is refused rather than sent to the app covering it: bring the window
+forward, then Stop and Show again. Minimised or closed windows stop sending
+pictures. Protected video isn't supported. Mac in the headset's "own display
+per window" is Mac-only.
+
+The pieces it shares with Mac in the headset:
+
+- `ui/frame_macview.py` owns the SSH tunnel, reconnects, quality presets and
+  panel launch. `ui/frame_pcview.py` picks the Windows helper
+  (`ui/frame_pc_agent.py`, `ui/frame_pc_capture.py`, `desktop/capture.c`) and
+  holds the on/off switch. `/api/macview` is the endpoint for both.
+- `ui/mac-view.html` is the one viewer in the headset. Its frame header, H.264
+  and JPEG payloads, reconnect handshake, clock sync, timing reports and input
+  messages are unchanged.
+- `desktop/controller.c` is a C port of the Mac helper's Swift rate controller,
+  for the Windows helper. The Mac keeps its Swift original;
+  `tests/test_pc_controller.py` checks the port against a frozen 600-state
+  trace from it. Capture is gated before encoding, so encoded frames are never
+  dropped, and an idle window's last picture still goes out once the link
+  clears.
+- Stream records use the Mac helper's JSON schema (`ui/frame_stream_stats.py`),
+  so the benchmark's analysis is shared.
+
+## Packaging
+
+The Windows installer carries `resources/desktop/bundle`: `pc-host.dll` (our
+adapter and the controller), the GStreamer plugins it uses (`coreelements`,
+`videotestsrc`, `videoconvertscale`, `app`, `jpeg`, `videoparsersbad`,
+`d3d11`, `mediafoundation`) and the DLLs they depend on, all from MSYS2's
+UCRT64 packages. `libraries.json` records the GStreamer version, the plugins,
+each copied DLL and the exact package versions; licence texts are in
+`licenses/`.
+
+MSYS2's `gst-plugins-bad` build disables `d3d11-wgc`. The presence of
+`d3d11screencapturesrc` alone does not prove WGC support: its `capture-api`,
+`window-handle` and `show-border` properties are conditional. The helper queries
+those properties on the instantiated element, advertises only supported
+sources, and omits all three properties for the DXGI whole-screen pipeline.
+It never substitutes a screen crop for an unavailable window capture.
+
+The x264 encoder is **not** in the installer. It's GPL, and Windows encodes
+with Media Foundation, so only CI's test builds include it
+(`desktop/build.py --with-x264`). The macOS and Linux installers are unchanged.
+
+From a source checkout on Windows, build the bundle from an MSYS2 UCRT64 shell
+with the packages listed in `.github/workflows/pc-host.yml`:
+
+```sh
+python desktop/build.py              # what the installer ships
+python desktop/build.py --with-x264  # for the native tests
+```
+
+A missing bundle is reported on the card; nothing is downloaded on first use.
+
+The Linux adapter from #38 (desktop portal, PipeWire, VA-API) is in the tree,
+because it shares `capture.c` and the controller, and CI still builds and tests
+it. The app never offers it and the Linux installers don't include it.
+
+## Measuring
+
+The Mac benchmark accepts the PC host:
+
+```sh
+python scripts/macview-bench.py run --pc --scenario test --label pc-test
+python scripts/macview-bench.py run --pc --scenario capture --source window:12345 --label windows-window
+```
+
+`capture` needs a window or screen id from the helper's `/windows` or
+`/displays`. CPU sampling isn't available on PC hosts. See
+[Mac in the headset](mac-in-headset.md) for the targets and shaping options.
+
+## What's verified
+
+- **Verified in CI, this PR:** on `windows-latest`, the native adapter builds
+  and a real x264 synthetic stream passes the ticket, reconnect, timing and
+  input-echo tests through the helper. The Windows installer builds with the
+  bundle, and its bundled Python loads the bundle, starts the helper and
+  confirms x264 isn't in it. Unit tests check the Windows-only, off-by-default
+  gating, the card and the Tools link on macOS, Windows and Linux.
+- **Verified, #38, 2026-09-28, real Frame on SteamOS BUILD_ID 20260925.6191901:**
+  the PC helper (ARM64, on the Frame itself, x264 test pattern) streamed
+  through a Mac SSH relay into the shared viewer: 400 frames at 39.3 fps,
+  content latency p50/p95 15.1/28.6 ms, synthetic input p50 76.6 ms, at
+  revision `cd20243`. The frame-rate and late-frame targets failed. This
+  proves the helper and the viewer work together; it isn't Windows capture or
+  a real PC link.
+  [Raw result](../bench/results/2026-09-28-cd20243-pc-agent-frame-arm64-final.json),
+  [earlier probe](../bench/results/2026-09-28-c5fc552-dirty-pc-agent-frame-arm64-hairpin.json).
+- **Verified, #38, on a Mac:** the C controller matched all 600 states of the
+  Swift controller's congestion and recovery trace.
+- **Verified, 2026-10-24:** Windows 11 VM build 26200.8037 on lxso2, using
+  the v0.4.10 installer with this fix, captured its actual desktop and streamed
+  H.264 to Frame BUILD_ID `20261015.6141207`: 219 sent frame records, 215 decoded
+  and drawn before the snapshot. The own-panel screenshot shows the Windows
+  desktop. This short, mostly idle run does not establish performance targets.
+  [Evidence, raw traces and cleanup](evidence/windows-vm-2026-10-24.md).
+- **Not verified:** Windows.Graphics.Capture, physical-PC capture, hardware
+  Media Foundation encoding, encoder restarts when the bitrate
+  changes, mixed-DPI and multi-monitor input alignment, window resize and
+  minimise, non-US keyboard layouts, physical laser input, and how it performs
+  in a worn headset. No numbers are claimed for these. Not tested with a
+  worn headset. See the dated VM evidence for the separate automated checks.
+- **Not reviewed independently.** #38 tried an independent review that never
+  completed.
@@ -0,0 +1,224 @@
+# Read-only power and heat measurements
+
+Issue [#52](https://github.com/saphid/frame-control/issues/52) starts with
+measurement. `scripts/frame-power-sample.sh` is a bounded, on-demand sampler
+over the existing `ssh frame` alias. It needs Python 3 on both computers and
+an already paired, awake, reachable Frame. It uses strict SSH host-key checking
+and batch mode; it never pairs, prompts for a password or changes SSH security.
+
+```sh
+# Twelve samples, five seconds apart (about 55 seconds), JSON report:
+scripts/frame-power-sample.sh > power.json
+
+# Five-minute observation: samples at 0, 5, ... 300 seconds:
+scripts/frame-power-sample.sh --count 61 --interval 5 > baseline.json
+
+# Long-form CSV samples; JSON summary goes separately to stderr:
+scripts/frame-power-sample.sh --count 12 --interval 5 --csv > power.csv 2> summary.json
+```
+
+Count is limited to 1–720; interval to finite values from 1–60 seconds. These
+are target start-to-start intervals, not guarantees: read latency can delay a
+sample. Wall-clock `time` and monotonic `elapsedSeconds` record actual timing.
+The first sample has no CPU utilization: two valid `/proc/stat` observations
+are required. CPU utilization then covers the interval between observations,
+averaged across the machine, rather than the utilization of one process.
+
+## Start, stop and open an accessible report
+
+From a source checkout with Python 3 and your already trusted `ssh frame`
+connection, start a local observation:
+
+```sh
+scripts/frame-power-sample.sh --count 12 --interval 5 --html power-report.html
+```
+
+Progress is printed on your computer as each sample arrives. Wait for completion,
+or press **Ctrl+C once** to stop local collection and save the samples already
+received. Open `power-report.html` in your browser using its Open File command.
+The file is self-contained and works offline: no server, scripts, external
+resources, account or upload. It includes a table with named metrics, source
+paths, units, minimum/mean/maximum/last values, and available/unknown counts.
+Keyboard users can focus the table region to scroll through its columns.
+Charging states and entirely unavailable sensor families remain explicit.
+Use **Download JSON samples and summary** or **Download CSV samples** to save
+raw measurements. The HTML also embeds those measurements; review it before
+sharing. No automatic browser launch occurs.
+
+HTML sessions are limited to `count × interval <= 600` seconds, with a 30-second
+transport allowance and at most twelve seconds of local child/pipe cleanup. The default
+12 samples at five-second intervals take about 55 seconds. Existing output files
+are never overwritten; choose a new filename for each run. `--html` cannot be
+combined with `--csv`. The desktop flow below uses the same sampler and renderer.
+
+Stop, timeout, SSH failure or a smoke-test lock marks the report incomplete;
+earlier received samples remain downloadable. Exit status is 75 for incomplete
+reports, 0 for completion. A connection that cannot start may instead return 1
+without an HTML file. Empty reports clearly show zero samples, not a successful
+measurement. If saving the file fails, received JSON is printed on stdout as a
+recovery path. Do not treat a partial report as a full baseline.
+
+Stopping terminates only this command's local SSH child. It sends no remote
+process-control command. The bounded remote Python reader exits when it next
+writes to the closed connection (normally at the next sample, up to one interval
+later); it can still read sensors before discovering the disconnect. Stop is
+not an immediate headset-side cancellation guarantee. The reader still checks
+the smoke-test lock before every sample. No lock is acquired or removed by this
+flow, and no power, thermal, service, password or security controls are exposed.
+
+## Desktop Tools → Power & heat report
+
+In the packaged desktop app, connect to an already paired Frame, open **Tools →
+Power & heat report**, choose **1 minute** (12 samples) or **5 minutes** (60 samples),
+and select **Start observation**. Samples arrive every five seconds, starting at
+zero (about 55 or 295 seconds total). Progress shows received samples and the
+original headset alias. There is at most one observation per local app server;
+viewing progress never starts another SSH connection. No terminal, checkout,
+extra dependency or password is needed.
+
+Use **Stop and keep samples** to end local collection. Disconnect, timeout,
+app shutdown or switching to another headset also ends collection. Switching
+network addresses for the same headset does not retarget an existing observation:
+it keeps its captured SSH route and may finish incomplete if that route fails.
+As with the CLI, only the owned local SSH child is terminated. The remote reader
+is bounded and discovers a closed connection on its next write. Desktop sessions
+have a 30-second transport allowance and bounded child cleanup. Stream lines are
+limited to 262,144 characters, sample events to the requested count, and the receive queue
+to count + 2 events; desktop SSH stderr is discarded rather than stored unbounded.
+The existing smoke lock is checked locally before start and remotely before each
+sample; this feature never creates, bypasses or removes that lock.
+
+**Download HTML report**, **Download JSON** and **Download CSV** save local
+snapshots through the browser/app download mechanism. Open the downloaded HTML
+in your browser to view the offline table and its embedded JSON/CSV downloads.
+Snapshots taken before completion explicitly say incomplete. Desktop CSV includes
+`collection.state`, `collection.requestedSamples` and `collection.receivedSamples`
+metadata rows with the original headset alias in the source column, even when no
+sensor sample arrived. CSV text fields, including the alias, are escaped if they
+begin with a spreadsheet formula prefix. JSON records the alias and device ID;
+HTML names the alias.
+
+Only the latest observation is retained in server memory, including partial
+samples after stop or disconnect. **Download before starting another observation,
+restarting the server or quitting the app**: those discard the previous report.
+Page reloads retain server state. Download requests include an observation ID, so
+an old page cannot silently download or stop a replacement observation. Reports
+are not uploaded or automatically opened, and may contain device identifiers,
+OS builds and sensor paths. Review before sharing. The phone-hosted UI does not
+support starting observations.
+
+## What it reads
+
+- Battery percentage, driver charging state, signed battery watts and battery
+  temperature, using the same parser as Frame Control's battery details.
+  Positive battery watts mean charging on the Frame fuel gauge; negative means
+  discharge. `Not charging` alone does not prove a charger is connected.
+- CPU utilization from `/proc/stat`; GPU clock from the known Frame devfreq path.
+- Named thermal zones in °C, with zone names retained. A thermal zone is not
+  automatically a CPU sensor; there is no inferred “CPU temperature” or safe
+  temperature threshold.
+- hwmon power channels, labels and driver names in watts. `vph` is the measured
+  system rail, not power at the wall. CPU `apc*` and GPU `gfx` rails are separate
+  readings; do not sum all channels as if they were independent power consumers.
+- Fan RPM and the Frame fan driver's raw `pwm1`. No generic percentage conversion
+  is assumed. The historical Frame driver reported a percent-like value of 41.
+- Named IIO board temperatures, PM8550B input/charge current in amps, and raw
+  VCNL4000 proximity if the account can read it. Raw proximity has no inferred
+  worn/unworn threshold.
+
+Each metric includes its unit, source path and availability state. Missing,
+unreadable or invalid values are JSON `null`, not zero. A missing sensor family
+is also listed in each sample's `unavailableGroups`; CSV adds unavailable group
+rows. Numeric zero remains a valid reading. The OS build is recorded per sample
+when `/etc/os-release` is readable; hostnames, addresses, machine IDs, process
+lists, logs, screenshots and application inventories are not collected.
+
+The JSON report contains raw samples and a summary per metric: available and
+unavailable counts, numeric minimum/maximum/arithmetic mean/first/last, or the
+observed charging states. Means exclude unavailable readings. They are sample
+means, not time-weighted energy or battery-runtime estimates. Different sample
+availability and intervals must be considered when comparing sessions.
+
+Numeric validity does not establish sensor accuracy. Historical readings
+already showed an apparently absent/broken right-display thermistor near
+−16 °C. This firmware also reports one charger-lite die sensor at −60 °C.
+Those raw numbers remain visible for diagnosis; neither should be used to
+infer cooling performance or safety. This tool does not diagnose heat, explain
+a spike, predict battery health, or promise power savings.
+
+## Safety and shared-device use
+
+Only file reads under `/proc`, `/sys` and `/etc/os-release` run on the Frame.
+The Python sources are sent on SSH stdin and not installed on the headset.
+There is no sudo, OpenVR initialization, service call, settings write, process
+control, journal query, wake, suspend or reboot. No daemon, telemetry upload or
+automatic measurement is added. Redirects above write only to your computer.
+The observer itself uses a little CPU and SSH traffic, so label baseline
+conditions and avoid interpreting very small changes as savings.
+
+The sampler checks `/tmp/frame-test.lock` on the computer before SSH, and on
+the Frame before any probe and before each sample. If a smoke session is active,
+it exits 75. A lock appearing mid-run stops the next sample, retains earlier
+samples, sets `stopped`, and exits 75. It never removes or acquires another
+session's lock. This is an advisory check, not an atomic lease: a smoke session
+can start during a file read. Coordinate sessions and defer measurement when
+timing overlaps. It does not block someone else from starting a smoke test.
+
+SSH failures/timeouts return a nonzero exit and an explanation, without
+presenting a zero or an old report as a successful measurement. Fully missing
+sensors can still produce a successful report with explicit unavailable states.
+On a connection failure, partial samples buffered on the headset can be lost.
+
+## Evidence and remaining work
+
+Read-only checks on **2026-10-24**, SteamOS **0.5.6**, build
+**20261015.6141207**, confirmed battery, CPU ticks, thermal zones, rail power,
+fan, GPU clock, board temperatures and charger current through the final
+sampler. Proximity was unavailable. Both JSON and CSV paths were exercised;
+see [the recorded results](evidence/power-sampler-2026-10-24.json).
+No smoke lock was present at the preflight or sampler checks. No settings,
+services, application state or device files were changed. This short run is
+a parser/transport check, not a controlled baseline or a worn-headset test.
+
+The original planning document is in commit `fe132e3` (2026-09-29). It recorded
+an off-head, charging idle baseline of about 4.71 W, CPU zones around 40–45 °C,
+and about 8,350 fan RPM on build 20260925.6191901. Those conditions and firmware
+differ from the current check; comparisons do not establish a regression.
+
+This change completes only the sampler portion of “Plan: leave it on, but
+cheaply.” Controlled worn/home-space, streaming/game load and unplugged
+baselines, and the cause of the 2026-09-28 95 °C spike, remain uninvestigated.
+Quiet mode, compositor changes, CPU/fan/charging changes and remote-wake tests
+are separate work. No controls are offered here. Follow the shared-device
+procedure in [testing.md](testing.md#headset-smoke-test) for future experiments.
+
+The accessible HTML export was checked on the same build on **2026-10-24**:
+three streamed samples, 91 metric summaries and 276 CSV data rows. Chromium
+preview checks at 1280 px and 390 px confirmed the table stays in its scroll
+region; both browser downloads matched the original samples. See
+[export evidence](evidence/power-export-2026-10-24.json). Ctrl+C retention and
+local process cleanup were tested with local subprocess fixtures, not on the
+real headset. Screen-reader, Windows and macOS checks were not performed.
+
+Offline validation:
+
+```sh
+python3 -m unittest discover -s tests -p 'test_power*.py' -v
+bash -n scripts/frame-power-sample.sh
+python3 -m py_compile scripts/frame_power_sample.py scripts/frame_power_report.py
+```
+
+Fixtures cover units, signed and zero values, missing/malformed/permission-denied
+readings, named/discovered channels, unknown charging state, CPU warmup,
+summary counts, CSV quoting, strict SSH transport and smoke-lock interruption.
+
+Export fixtures also cover HTML escaping, download round trips, zero versus unknown,
+stream completion/failure, smoke-lock stop, timeout, Ctrl+C retention, local child
+cleanup, duration bounds and refusing to overwrite reports.
+
+Desktop validation on **2026-10-24** covered API start/stop, a synthetic browser
+observation with partial exports, shared-module resource staging under isolated
+Python and missing-resource build guards. A real Frame probe under this task's
+owned smoke lock correctly returned zero samples with an explicit incomplete
+reason; no successful live sensor baseline or native installer run was performed.
+See [desktop evidence and limitations](evidence/power-desktop-2026-10-24.json).
@@ -203,9 +203,11 @@ and display name of the headset being tried (whole, whatever their case), and
 then any name ssh gives after "hostname", "host" or "to", become `<host>`; a Windows home folder's
 whole name (spaces and apostrophes included) becomes `<user>`, and ssh's
 whole `user@host:` field (spaces, `DOMAIN\user` and full domain names
-included) becomes `<user>@<host>:`; then the scrubbing below. A host name ssh mentions
-in some other wording can still get through, so check the log lines in **Show
-exactly what's included** before sending. A failure that repeats on every
+included) becomes `<user>@<host>:`; then the scrubbing below. Whole display names
+are hidden even when they contain a scrubber token such as `<host>` or overlap
+ssh's wording. Those overlaps also preserve redaction of URLs, home folders,
+and keys. A host name ssh mentions in some other wording can still get through,
+so check the log lines in **Show exactly what's included** before sending. A failure that repeats on every
 retry is written at most once every 5 minutes.

 Everything is scrubbed like error details and limited to what fits in the
@@ -8,13 +8,13 @@ Both are on **Tools → Capture & Live**. Everything is saved to
 Nothing needs installing on the computer or on the Frame: the work is done by
 the `ffmpeg` that SteamOS ships.

-**Recording is tested on a headset; Steam clip export isn't yet.** On a Frame
+**Recording and Steam clip export have each been tested on a headset.** On a Frame
 running SteamOS 0.5.6 (build 20261015.6141207), Record and Stop saved an
 8-second 1080p H.264 recording with AAC sound to the computer, Stop took about a
-second, and nothing was left running or stored on the Frame. That Frame had no
-Steam recordings, so the clip list came back empty and export has only been
-tested with files in Steam's format made by `ffmpeg`. The parts we're least sure
-of are listed under [What hasn't been checked](#what-hasnt-been-checked).
+second, and nothing was left running or stored on the Frame. A later test on
+that build created a saved clip with Steam's own recorder and exported it with
+Frame Control's production export function. The parts we're least sure of are
+listed under [What hasn't been checked](#what-hasnt-been-checked).

 ## Record

@@ -147,18 +147,31 @@ stand-in `ffmpeg`, so Stop, the time limit and the clean-up are tested as they
 run on the Frame. Where `ffmpeg` is installed, they also make a 65-second DASH
 recording with Steam's file names and export it with the real `ffmpeg`.

-## What hasn't been checked
+## Real Steam clip verification and remaining checks

-None of this has run on a Steam Frame yet. In particular:
+On 2026-10-24, v0.4.15 on build `20261015.6141207` recorded a ten-second
+reserved test session through Steam's own game recorder, saved it as a clip,
+then exported it with `frame_clips.export_clip`, the same implementation used
+by the desktop API. The 159,829-byte MP4 decoded completely: 10.29 seconds,
+1920×1080 H.264 video and stereo AAC audio (SHA-256
+`f8a476eefb2bde7ba5cb464632ec9b952eea3ab1610b5bed2098bf1f11d62cf1`).
+All 616 decoded video frames and the decoded audio matched Steam's source
+segments. Recording mode was restored
+to off; the reserved title and its processes were removed, the shared test lock
+was released, and the battery remained at 99%. The Steam source clip was kept.

- That SteamOS's `ffmpeg` can read `@DEFAULT_MONITOR@`. It has the PulseAudio
-  output device (the media player plays through it), so the input is expected,
-  but if it fails the recording is video only, as above.
- Audio and video sync. Both inputs are stamped with the wall clock, because
-  the camera device and the audio server otherwise count from different clocks.
- The exact layout of `gamerecordings` on the Frame's SteamOS build, and
-  whether a clip's segments start mid-recording. The parser is deliberately
-  loose about the layout.
+The inspected frame is nearly black in both Steam's source and the export, so
+this establishes file creation and faithful export, **not visible gameplay
+capture**. The literal desktop **Export** button was not clicked. Remaining
+checks include:
+
+- Perceptual audio/video sync and audible content. Frame Control's separate
+  **Record** path stamps camera and audio inputs with the wall clock because
+  they otherwise count from different clocks.
+- Long saved clips, trims starting partway through a Steam recording, and the
+  desktop **Export** button. One real saved clip's
+  directory layout was checked; the parser remains deliberately loose for
+  other layouts.
 - How much x264 at 1080p30 costs the Frame while a game is running.
 - Automatic copying: that 30 seconds without a write is a safe sign Steam has
  finished saving a clip, and how a once-a-minute listing feels on the Frame.
@@ -4,6 +4,9 @@ Where to get the Steam Frame's operating system, what's inside it, and how to
 run it for testing without the headset. For recovering a Frame that won't boot,
 see the boot menu and boot-loop entries in
 [how-the-frame-works.md](how-the-frame-works.md#facts-worth-knowing).
+To keep your game saves, settings and Android app data through a factory reset
+(`Erase User Data`) or a re-image, and to get out of Desktop Mode, see
+[backup-and-recovery.md](backup-and-recovery.md).

 ## Downloads

@@ -14,7 +14,10 @@ count. So a build reaches people only when you publish it, after testing it.

   `.github/workflows/release.yml` builds macOS, Windows and Linux, and
   attaches everything to a **draft** release for that tag. Nobody is
-   offered a draft.
+   offered a draft. Editing a draft while installers are uploading can make
+   GitHub temporarily show its tag as `untagged-…`. The workflow finds that
+   draft by its exact version title, restores the tag association and retries
+   the affected upload; it refuses ambiguous matches.

 2. Download the draft's installers and test them. An installed copy of the
   previous version won't offer the draft, so install it directly.
@@ -7,6 +7,10 @@ run on Linux. On Windows, use the app.

 ## Minimum typing on the headset

+If setup or pairing fails, run `scripts/frame-doctor.sh` from this checkout.
+It checks existing SSH access without requesting passwords, pairing or applying
+repairs. See the [Frame doctor guide](frame-doctor.md) for results and next steps.
+
 Valve's own developer docs say SSH, ADB, and RDP are all turned on through a
 **UI toggle**. You don't need a terminal, `passwd`, or `systemctl`. The only
 thing you type on the headset is a password you choose.
@@ -12,6 +12,12 @@ A fourth, a SteamOS VM, may come later ([issue #6](https://github.com/saphid/ste

 ## Unit tests

+The read-only power/heat sampler has fixture and transport tests in
+`tests/test_power_sample.py`. Run
+`python3 -m unittest discover -s tests -p test_power_sample.py -v`.
+See [power-and-heat.md](power-and-heat.md) for sampling, smoke-lock behavior and
+real-device verification limits.
+
 ```sh
 python3 -m unittest discover -s tests
 ```
@@ -44,6 +50,23 @@ them on macOS, Windows and Linux. They don't pick up `tests/e2e`.

 ## The fake Frame

+Frame doctor has focused offline tests in `tests/test_frame_doctor.py` and
+fake-Frame fault tests in `tests/e2e/test_doctor.py`:
+
+```sh
+python3 -m unittest discover -s tests -p test_frame_doctor.py -v
+scripts/e2e.sh test_doctor
+```
+
+They cover privacy filtering, host-key preservation, restart safety and missing
+journal evidence, plus asleep, full-title-storage, SSH/devkit-off and missing-key
+faults. The plan/report tests cover exact-evidence advice, blocked plans,
+private exclusive baselines, malformed input, target mismatches and comparisons
+without repair claims. The fake-Frame storage test records a full-disk baseline,
+clears only the fake fault and compares a fresh run. The fake's doctor-only
+`systemctl show` responses assume stable restart counters and inactive keep-awake; unsupported queries fail. These tests do not
+exercise a real SteamOS user manager or touch a headset.
+
 `tests/fakeframe/` builds a container that stands in for the headset, and a
 second one for the computer Frame Control runs on. `scripts/e2e.sh` builds
 both, starts them with `docker compose`, runs `tests/e2e` in the host
@@ -164,6 +187,43 @@ does). A cleanup that fails counts as a failed step. Results go to
 screen; it exits 0 when every step passed, 1 if one failed, 2 if the headset
 isn't reachable.

+Smoke process cleanup runs before and after title removal and during the
+initial/final leftover sweeps. It targets only the reserved `fc_smoke_arm64`,
+`fc_smoke_x86_64`, `fc_smoke_exe` IDs and their legacy `fc-smoke-` equivalents.
+On the target, `tests/smoke/stop_processes.py` requires the SSH user's uid and
+an exact title directory in `/proc` cwd/exe or an individual absolute command
+argument; similarly named folders and shell command substrings do not count.
+Deleted cwd/exe paths still count, so a process left after file removal can be
+found. It sends SIGTERM, waits up to three seconds, then uses SIGKILL with
+another three-second bound, rescanning for survivors. PID handles prevent PID
+reuse from signalling another process. Linux Python 3.9+ with pidfd support
+is required; missing support, signal errors and survivors fail the
+cleanup step. Stopped PIDs are recorded in the results JSON.
+If the initial leftover cleanup fails, the run skips installs and pairing and
+records the failure instead of overwriting an active test title.
+
+This deliberately does not stop shared Wine/Proton services by name or prefix,
+Steam, SteamVR, process groups or arbitrary descendants. A process that drops
+all title-path evidence cannot safely be attributed and is outside this
+check. Unreadable `/proc` fields provide no ownership evidence; other readable
+fields are still checked, and a wholly unattributable process is left alone.
+Real Frame verification, 2026-10-24, SteamOS build `20261015.6141207`: the
+fixed Python smoke entry point passed all 13 steps under the shared device lock.
+The `fc_smoke_exe` launch ran under Proton Experimental (ARM64), and its
+remove step stopped five test-owned wrapper/Proton PIDs before removing the
+title; the following process sweep found none. The final cleanup found no
+test titles or processes, the test desktop was closed, and the battery
+remained at 99%. The `scripts/frame-smoke.sh` zsh wrapper could not run
+on lxso2 because zsh is absent; `python3 tests/smoke/frame_smoke.py` ran
+the same entry point instead.
+The local regression suite runs real Linux processes in temporary fake title
+directories (including deleted folders and a TERM-resistant wrapper); it checks
+exit, escalation and survival of unrelated processes without SSH or a headset:
+
+```sh
+python3 -m unittest discover -s tests -p test_smoke_cleanup.py -v
+```
+
 `--pair` asks the devkit service to pair a new RSA key, which needs someone
 in the headset to open **Settings → Developer → Pair new host** and approve
 it; the key is checked and then taken out of `authorized_keys` again.
@@ -187,11 +247,36 @@ refuses ids with a hyphen (`missing/invalid arguments`), which the fake had
 accepted. The fake now refuses them the same way, and Frame Control makes ids
 Steam accepts.

+## PC panel host tests
+
+PC in the headset (Experimental, Windows only). `tests/test_pcview.py` checks
+that only Windows gets the PC host and that it starts nothing until turned on,
+the Tools link and card wording, source-bound tickets, reconnect/Stop
+revocation, input release, source-coordinate mapping and use of the existing
+panel launcher. `tests/test_pc_controller.py` checks the C rate controller
+against a frozen trace of the Mac's Swift one.
+
+The `PC host libraries` workflow builds the native adapter on Windows (and
+the unshipped Linux adapter on Ubuntu x64 and ARM64), then runs a real x264
+synthetic stream through the HTTP/WebSocket agent. x264 is GPL, so only these
+CI builds include it (`desktop/build.py --with-x264`); the release workflow
+tests the installer's own bundle with its bundled Python and checks x264 isn't
+in it. `FRAME_PC_REQUIRE_NATIVE=1` and `FRAME_PC_REQUIRE_X264=1` make a missing
+bundle or encoder fail CI instead of skipping.
+
+These automated CI checks do not capture a desktop, exercise Media Foundation
+or a GPU, or check laser alignment. A [Windows test VM](#windows-test-vm) run
+on 2026-10-24 captured its actual desktop with Desktop Duplication, encoded
+with Media Foundation and streamed to a real Frame. It found MSYS2 disables
+WGC: an element name alone does not prove its optional capture properties
+exist. Native property-probe tests and source-selection regressions now cover
+that boundary. [Dated evidence and limits](evidence/windows-vm-2026-10-24.md);
+[what's verified](pc-in-headset.md#whats-verified).
+
 ## Windows test VM

-The unit tests run on Windows in CI, but the app itself doesn't. Anything that
-depends on the Windows desktop (Remote Desktop, the installer, the bundled
-Python, file dialogs) needs a real Windows machine. This is a Windows 11 VM in a
+Windows CI runs the unit tests and checks installer contents. Desktop capture,
+installer launch and interactive behavior need a Windows machine. This is a Windows 11 VM in a
 [dockur/windows](https://github.com/dockur/windows) container on a Linux machine
 with KVM, driven from the Mac with `scripts/windows-vm.sh`.

@@ -211,7 +296,14 @@ Setting it up, once, on the Linux machine:
  `~/.ssh/id_ed25519_winvm` on the Mac) in
  `C:\ProgramData\ssh\administrators_authorized_keys`.
 - Give it 4 cores, 8 GB of memory and a 32 GB disk. That's enough for the app
-  and the tests.
+  and the tests. Inspect free memory/disk, KVM access and existing VMs before
+  starting; leave other VMs alone. The first install can take tens of minutes
+  (the 2026-10-24 run took about 16 minutes to reach the desktop), rather than
+  the 1–2 minute startup of an already installed guest.
+- For PC streaming, check the actual bundled capture properties. MSYS2's
+  GStreamer build disables WGC: this app falls back to Desktop Duplication for
+  whole screens and explains why individual windows are unavailable. A VM
+  capture test does not prove physical GPU encoding or laser alignment.

 Using it, with `WINVM_HOST` set to the Linux machine's ssh alias:

@@ -325,3 +417,47 @@ Chromium rendering and the same helper through HTTP. Close the switcher after
 testing. [The recorded device checks](panels.md#frame-controls-panel-switcher)
 cover actual focus, HTTP guards and an OpenXR sample transition, and separately
 identify the unverified Steam-game, spatial layout, reboot and laser behaviors.
+
+## Backup and recovery kit
+
+`tests/test_backup.py` runs the headset-side script `ui/frame_backup_remote.py`
+for real against a temporary folder laid out like the Frame's home, with only
+SSH faked: path selection and the secrets it must never copy, the manifest and
+checksums, restore checks after a reset, restore writing only its own files,
+unsafe archives and backup names, and the exact Game Mode command.
+`tests/e2e/test_recovery_kit.py` backs up and restores a Proton save on the fake
+Frame through the server. See [backup-and-recovery.md](backup-and-recovery.md#verification).
+A full backup and an identical-file Proton save restore were checked on a
+real Frame running build `20261015.6141207`; an after-reset restore and
+Android data restore remain unverified. See the linked device evidence.
+
+## Game storage
+
+`python3 -m unittest discover -s tests -p test_storage.py -v` exercises the
+read-only metadata probe, guarded HTTP endpoint and Node renderer/navigation
+regressions. All headset reads are temporary fixtures or mocked SSH. See
+[game storage](game-storage.md#verification-and-limits) for coverage and device
+verification limits. This suite does not move games or contact a headset.
+
+## Battery monitoring
+
+`tests/test_battery.py` covers real file parsing with temporary sysfs-like
+files, source preference, missing/invalid sensors and permission errors.
+`tests/control_center.cjs` covers charging states and optional health fields,
+alongside existing stale/offline handling. No headset is used. See
+[battery monitoring](battery-health.md) for sources, units and limitations.
+
+## Host-key recovery presentation
+
+`python3 -m unittest discover -s tests -p test_link_ui.py -v` runs the page's
+connection/banner/selection functions in Node and checks the recovery CSS guard.
+`test_link.py` covers connection failures and short probe reasons with fake SSH
+and local sockets. Neither suite uses a real headset.
+
+Browser verification on 2026-10-24 used the current page's markup, styles and
+recovery renderers with synthetic changed-key state and two headsets at
+1280×800. It caught a later `.item .s` rule overriding the earlier wrapping
+rule, which the original source-only assertion missed. Check computed wrapping,
+the complete explanation, tooltip punctuation, Refresh bounds and selection
+after **Use this headset** when changing these styles. This fixture does not
+exercise Electron integration or a real SSH identity change.
@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+# Read-only diagnostics, repair plans and explicit local before/after reports; see docs/frame-doctor.md.
+set -euo pipefail
+root=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")/.." && pwd)
+exec python3 "$root/scripts/frame_doctor.py" "$@"
@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+# Read-only, bounded power/heat sampler. See docs/power-and-heat.md.
+set -euo pipefail
+root=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")/.." && pwd)
+exec python3 "$root/scripts/frame_power_sample.py" "$@"
@@ -0,0 +1,398 @@
+"""Read-only doctor. Also sent over SSH on stdin; never installed on the Frame.
+
+Only fixed summaries leave the probe: no raw journals, addresses, account IDs,
+process arguments, environment, key material or HTTP response bodies.
+"""
+import argparse
+import hashlib
+import json
+import os
+from pathlib import Path
+import re
+import shutil
+import socket
+import subprocess
+import sys
+import time
+
+SECTIONS = ('Boot and crash history', 'Wi-Fi', 'Displays and SteamVR',
+            'Steam and storage', 'Idle sleep and keep-awake', 'Remote wake',
+            'Lepton (Android)', 'Chromium XR', 'KDE Connect',
+            'Streaming and capture', 'Panels')
+
+
+def run(args, timeout=4, **kwargs):
+    try:
+        return subprocess.run(args, capture_output=True, text=True, timeout=timeout, **kwargs)
+    except (OSError, UnicodeError, subprocess.TimeoutExpired):
+        return None
+
+
+def command(*args):
+    r = run(list(args))
+    return r.stdout if r is not None and r.returncode == 0 else None
+
+
+def journal(*args):
+    # Even exit 0 can mean the account cannot see the system journal.
+    r = run(['journalctl', '--no-pager', '-q', '-n', '2000', *args])
+    if r is None or r.returncode or r.stderr.strip() or not r.stdout.strip():
+        return None
+    return r.stdout
+
+
+def snapshot():
+    values = []
+    for unit in ('steam', 'steamvr'):
+        s = command('systemctl', '--user', 'show', unit + '.service',
+                    '-p', 'NRestarts', '--value')
+        if s is None or not s.strip().isdigit():
+            return None
+        values.append(int(s.strip()))
+        p = Path('/run/user') / str(os.getuid()) / (unit + '-short-session-tracker')
+        try:
+            values.append(p.stat().st_size)
+        except FileNotFoundError:
+            values.append(0)
+        except OSError:
+            return None
+    return values
+
+
+def guard():
+    first = snapshot()
+    time.sleep(2)
+    second = snapshot()
+    if first is None or second is None:
+        return 'unknown'
+    if any(b > a for a, b in zip(first, second)):
+        return 'loop'
+    if first != second:
+        return 'unknown'  # counters reset or tracker replaced during the sample
+    if second[1] or second[3]:
+        return 'risk'  # avoid a long run even if a short sample missed the loop
+    return 'stable'
+
+
+def signal_check(text, pattern, problem, healthy):
+    if text is None:
+        return ['UNKNOWN', 'Evidence unavailable; consult the runbook locally.']
+    return ['WARN', problem] if re.search(pattern, text, re.I) else ['OK', healthy]
+
+
+def storage():
+    # devkit-game may be a separate mount (including in the fake Frame).
+    try:
+        paths = [Path.home()]
+        games = Path.home() / 'devkit-game'
+        if games.exists():
+            paths.append(games)
+        free = min(shutil.disk_usage(p).free for p in paths)
+        if free < 16 * 1024**2:
+            return ['BROKEN', 'Less than 16 MiB free; review storage in Frame Control before installing.']
+        if free < 256 * 1024**2:
+            return ['WARN', 'Less than 256 MiB free; review storage before large installs.']
+        return ['OK', 'Home and title storage have at least 256 MiB free.']
+    except OSError:
+        return ['UNKNOWN', 'Storage could not be read.']
+
+
+def probe():
+    state = guard()
+    if state != 'stable':
+        return {'guard': state, 'checks': []}
+    kernel = journal('-b', '-k', '--since=-10min')
+    recent = journal('-b', '--since=-10min')
+    previous = journal('-b', '-1', '-k')
+    crashes = command('coredumpctl', 'list', '--no-pager', '--since=-1d')
+    checks = []
+    boot = signal_check(previous, r'Unable to handle kernel|Internal error|Kernel panic',
+                        'Previous boot has a kernel oops; this alone does not prove an unclean reset.',
+                        'No kernel-oops signature in the sampled previous boot.')
+    if crashes is None and boot[0] != 'WARN':
+        boot = ['UNKNOWN', 'Crash history unavailable; inspect boot history locally.']
+    elif crashes is not None and boot[0] != 'WARN' and re.search(r'SIG(SEGV|ABRT)|\b(SEGV|ABRT)\b', crashes):
+        boot = ['WARN', 'Crash records exist in the last day; inspect locally using the runbook.']
+    checks.append(boot)
+    wifi = command('nmcli', '-t', '-f', 'DEVICE,TYPE,STATE', 'device')
+    checks.append(signal_check(wifi if wifi and 'wlan0:wifi:' in wifi else None, r'wlan0:wifi:(unavailable|disconnected|failed)',
+                               'Wi-Fi is unavailable or disconnected; check Steam Settings > Internet. Never reload ath12k.',
+                               'No unavailable/disconnected wlan0 reported; other interfaces may differ.'))
+    checks.append(signal_check(kernel, r'wait for video done',
+                               'Display timeouts observed; follow display recovery before touching Steam.',
+                               'No display-timeout signature in recent kernel sample.'))
+    if checks[-1][0] != 'WARN' and recent is not None and re.search(r'left-over process|steamvr.service: Failed|!modifiers.empty', recent):
+        checks[-1] = ['WARN', 'SteamVR/session failure signature observed; inspect locally before restarting anything.']
+    disk = storage()
+    if disk[0] == 'OK' and not (Path.home() / '.local/share/Steam/.install-complete').exists():
+        disk = ['WARN', 'Steam install marker is missing; do not restart Steam for diagnosis. Consult the runbook.']
+    checks.append(disk)
+    awake = command('systemctl', '--user', 'show', 'fc-keep-awake.service', '-p', 'ActiveState', '--value')
+    checks.append(['UNKNOWN', 'Keep-awake state unavailable.'] if awake is None or not awake.strip() else
+                  ['WARN', 'Keep-awake is active; leave it with its owner.'] if awake.strip() == 'active' else
+                  ['OK', 'Keep-awake is inactive; diagnostics do not inhibit sleep.'])
+    wow = command('iw', 'phy', 'phy0', 'wowlan', 'show')
+    checks.append(['UNKNOWN', 'WoWLAN state unavailable; remote wake is not verified.'] if wow is None else
+                  ['OK', 'WoWLAN is disabled; wake the headset with its power button.'] if 'WoWLAN is disabled' in wow else
+                  ['WARN', 'WoWLAN may be armed; review the runbook. Remote wake is not reliable.'])
+    checks.append(signal_check(recent, r'Listen failed for HOST TCP|binder_user_error|Clearing baked app data',
+                               'Android failure signature observed; inspect Lepton locally before retrying.',
+                               'No known Android failure signature in recent journal sample.'))
+    checks.append(signal_check(crashes, r'chromium|/chrome\b',
+                               'Chromium crash history found; update/relaunch the panel through its normal UI.',
+                               'No Chromium crash signature in available crash history.'))
+    kde = run(['pgrep', '-f', 'frame-control/kdeconnect/root/usr/lib/kdeconnectd'])
+    checks.append(['UNKNOWN', 'KDE Connect process check unavailable.'] if kde is None or kde.returncode not in (0, 1) else
+                  ['OK', 'KDE Connect process found.'] if kde.returncode == 0 else
+                  ['WARN', 'KDE Connect is not running; normal if keyboard/trackpad sharing is off.'])
+    checks.append(signal_check(crashes, r'ffmpeg',
+                               'Capture crash history found; consult software-encoder guidance in the runbook.',
+                               'No ffmpeg crash signature in available crash history.'))
+    checks.append(['UNKNOWN', 'Panel placement needs visual confirmation; open one panel at a time.'])
+    # A short sample is not proof that Steam is healthy. Recheck after collecting.
+    after = guard()
+    return {'guard': after, 'checks': checks if after == 'stable' else []}
+
+
+SSH_OPTIONS = ['BatchMode=yes', 'NumberOfPasswordPrompts=0', 'StrictHostKeyChecking=yes',
+               'UpdateHostKeys=no', 'CheckHostIP=no', 'ConnectTimeout=3', 'ConnectionAttempts=1',
+               'ControlMaster=no', 'ControlPath=none', 'ClearAllForwardings=yes',
+               'PermitLocalCommand=no', 'RemoteCommand=none', 'RequestTTY=no',
+               'ProxyCommand=none', 'ProxyJump=none', 'ForwardAgent=no', 'ForwardX11=no']
+
+
+def ssh_args(alias, host=None, identity=None):
+    args = ['ssh']
+    for opt in SSH_OPTIONS:
+        args += ['-o', opt]
+    if host:
+        args += ['-o', 'HostName=' + host, '-o', 'HostKeyAlias=' + identity]
+    return args + [alias]
+
+
+def failure(text):
+    # Never echo SSH stderr: it can contain addresses, paths or remote text.
+    if 'REMOTE HOST IDENTIFICATION HAS CHANGED' in text:
+        return 'SSH identity changed; use Devices > Check its key after verifying the headset. Do not delete known_hosts.'
+    if 'Host key verification failed' in text:
+        return 'SSH identity is untrusted; verify it through Set Up Connection or Devices > Check its key.'
+    if 'Permission denied' in text:
+        return "SSH key rejected; use Set Up Connection, then Developer > Pair new host in the headset."
+    return 'No SSH response; wake the headset, check the network/cable and enable Developer Mode.'
+
+
+def port_open(host, port):
+    try:
+        with socket.create_connection((host, port), timeout=2):
+            return True
+    except OSError:
+        return False
+
+
+def report(data):
+    state = data.get('guard')
+    if state != 'stable':
+        status = 'BROKEN' if state == 'loop' else 'WARN' if state == 'risk' else 'UNKNOWN'
+        message = {'loop': 'Counters are rising. Stop diagnostics; use the runbook health-check recovery procedure.',
+                   'risk': 'Health-check trackers contain failures. Deeper checks skipped; review the runbook before recovery.'}
+        print(status + ' Restart safety: ' + message.get(state, 'Cannot verify restart counters; deeper checks skipped for safety.'))
+        for i, label in enumerate(SECTIONS, 1):
+            print(f'UNKNOWN {i}. {label}: Skipped until restart safety is verified.')
+        return 1
+    checks = data.get('checks')
+    # Treat the remote endpoint as untrusted. Only accept pairs from our own
+    # fixed vocabulary by matching against the production probe's messages.
+    if not isinstance(checks, list) or len(checks) != len(SECTIONS):
+        print('UNKNOWN Probe: Incomplete diagnostic response; no raw output displayed.')
+        return 1
+    for check in checks:
+        if (not isinstance(check, list) or len(check) != 2 or check[0] not in ('OK', 'WARN', 'BROKEN', 'UNKNOWN')
+                or not isinstance(check[1], str) or check[1] not in MESSAGES):
+            print('UNKNOWN Probe: Unexpected diagnostic response; no raw output displayed.')
+            return 1
+    print('OK Restart safety: No rising counters during short samples; this is not a health guarantee.')
+    for i, (label, (status, message)) in enumerate(zip(SECTIONS, checks), 1):
+        print(f'{status} {i}. {label}: {message}')
+    return int(any(c[0] != 'OK' for c in checks))
+
+
+def valid_data(data):
+    """Validate before saving, comparing or deriving any recommendation."""
+    if (not isinstance(data, dict) or set(data) != {'guard', 'checks'}
+            or data.get('guard') not in ('stable', 'loop', 'risk', 'unknown')):
+        return False
+    checks = data.get('checks')
+    if data['guard'] != 'stable':
+        return checks == []
+    return (isinstance(checks, list) and len(checks) == len(SECTIONS)
+            and all(isinstance(c, list) and len(c) == 2
+                    and c[0] in ('OK', 'WARN', 'BROKEN', 'UNKNOWN')
+                    and isinstance(c[1], str) and c[1] in MESSAGES for c in checks))
+
+
+def repair_plan(data):
+    print('Repair plan (READ-ONLY): no commands executed; no automatic repair is available.')
+    if data['guard'] != 'stable':
+        print('BLOCKED: Restart safety is unverified or unsafe. Needs your hands: review the runbook health-check recovery with the headset user; do not restart services.')
+        return
+    # Each action needs the exact section, severity AND recognized evidence.
+    actions = {
+        (1, 'WARN', 'Wi-Fi is unavailable or disconnected; check Steam Settings > Internet. Never reload ath12k.'):
+            'Needs your hands: check Steam Settings > Internet. Do not reload ath12k.',
+        (2, 'WARN', 'Display timeouts observed; follow display recovery before touching Steam.'):
+            'Needs your hands: inspect the display in-headset and review display recovery before any Steam action.',
+        (3, 'BROKEN', 'Less than 16 MiB free; review storage in Frame Control before installing.'):
+            'Needs your hands: review Game storage and use Steam storage management after choosing what to keep; no files are deleted by doctor.',
+        (3, 'WARN', 'Less than 256 MiB free; review storage before large installs.'):
+            'Needs your hands: review Game storage before installing; choose any storage changes yourself.',
+        (3, 'WARN', 'Steam install marker is missing; do not restart Steam for diagnosis. Consult the runbook.'):
+            'Needs your hands: inspect Steam installation/extraction locally with the runbook. A missing marker does not authorize repair or restart.',
+        (4, 'WARN', 'Keep-awake is active; leave it with its owner.'):
+            'Leave keep-awake with its owner; do not take ownership or change idle settings.',
+    }
+    for i, (status, message) in enumerate(data['checks']):
+        if status == 'OK':
+            continue
+        action = actions.get((i, status, message))
+        if action is None:
+            action = ('Collect missing evidence locally; no repair is justified.' if status == 'UNKNOWN'
+                      else 'Review this signal locally with the runbook; it does not establish a safe automatic fix.')
+        print(f'PLAN {i + 1}. {SECTIONS[i]}: {action}')
+
+
+def compare(before, after):
+    print('Before/after diagnostics: observations only; changes do not prove repair or causation.')
+    print('Restart safety: ' + before['guard'] + ' -> ' + after['guard'])
+    if before['guard'] != 'stable' or after['guard'] != 'stable':
+        print('Comparison blocked: deeper checks were skipped in at least one sample; no improvement claimed.')
+        return
+    for i, label in enumerate(SECTIONS):
+        a, b = before['checks'][i], after['checks'][i]
+        detail = 'unchanged' if a == b else 'evidence changed'
+        print(f'{i + 1}. {label}: {a[0]} -> {b[0]} ({detail})')
+        if a != b:
+            print('  Before evidence: ' + a[1])
+            print('  After evidence: ' + b[1])
+
+
+def load_baseline(path):
+    # Local reports are untrusted too; bound input and never echo file contents.
+    with open(path, 'rb') as stream:
+        raw = stream.read(65537)
+    if len(raw) > 65536:
+        raise ValueError()
+    saved = json.loads(raw)
+    if (not isinstance(saved, dict) or saved.get('version') != 1
+            or not isinstance(saved.get('target'), str)
+            or not re.fullmatch('[a-f0-9]{64}', saved['target'])
+            or not valid_data(saved.get('diagnostics'))):
+        raise ValueError()
+    return saved
+
+
+def main(argv=None):
+    parser = argparse.ArgumentParser(description='Read-only Frame setup diagnostics. Never pairs, repairs or asks for a password.')
+    parser.add_argument('--alias', default='frame', help='Existing trusted SSH alias (default: frame)')
+    parser.add_argument('--lan', default='frame.local', help='LAN fallback host/IP')
+    parser.add_argument('--usb', default='10.86.200.233', help='USB fallback IP; use only with the intended headset connected')
+    parser.add_argument('--plan', action='store_true', help='Print a read-only repair plan from recognized evidence')
+    parser.add_argument('--save-report', metavar='FILE', help='Create a local JSON baseline (never overwrite an existing file)')
+    parser.add_argument('--compare-before', metavar='FILE', help='Compare a saved baseline with this fresh read-only run')
+    args = parser.parse_args(argv)
+    baseline = None
+    if args.compare_before:
+        try:
+            baseline = load_baseline(args.compare_before)
+        except (OSError, ValueError, TypeError, UnicodeError, RecursionError):
+            print('UNKNOWN Baseline: Cannot read a valid doctor report; no comparison performed.')
+            return 2
+    for value in (args.alias, args.lan, args.usb):
+        if not re.fullmatch(r'[A-Za-z0-9][A-Za-z0-9._:-]{0,252}', value):
+            parser.error('Use a plain alias, hostname or IP address.')
+    print('Frame doctor: read-only; no passwords, pairing, repairs or raw logs. Reports are saved only with --save-report.')
+    if not shutil.which('ssh'):
+        print('BROKEN Setup: Install an OpenSSH client, then run Set Up Connection.')
+        return 2
+    config = run(ssh_args(args.alias)[:-1] + ['-G', args.alias])
+    if config is None or config.returncode:
+        print('UNKNOWN Setup: SSH configuration could not be read; check it locally.')
+        return 2
+    settings = dict(line.split(' ', 1) for line in config.stdout.splitlines() if ' ' in line)
+    identity = settings.get('hostkeyalias') or settings.get('hostname', args.alias)
+    # Bind reports to the configured logical SSH target, across LAN/USB fallback.
+    # This is configuration continuity, not proof of physical headset identity.
+    target = hashlib.sha256(json.dumps([args.alias, identity, settings.get('hostname'),
+                                      settings.get('user'), settings.get('port'), args.lan, args.usb]).encode()).hexdigest()
+    if baseline is not None and baseline['target'] != target:
+        print('UNKNOWN Baseline: SSH target configuration differs; comparison refused.')
+        return 2
+    source = Path(__file__).read_text()
+    for label, host in (('configured alias (Tailscale if configured)', None), ('LAN', args.lan), ('USB-C', args.usb)):
+        result = run(ssh_args(args.alias, host, identity) + ['python3 -B - --probe'], timeout=90, input=source)
+        if result is not None and result.returncode == 0:
+            try:
+                data = json.loads(result.stdout)
+                if not valid_data(data):
+                    raise ValueError()
+            except (ValueError, RecursionError):
+                print('UNKNOWN Probe: Invalid response; check Python 3 availability on the headset. No raw output displayed.')
+                return 1
+            print('OK Connection: ' + label + '; verified SSH identity and key login.')
+            code = report(data)
+            if args.plan:
+                repair_plan(data)
+            if baseline is not None:
+                compare(baseline['diagnostics'], data)
+            if args.save_report:
+                try:
+                    # Exclusive create prevents clobbering a baseline or following a symlink.
+                    fd = os.open(args.save_report, os.O_WRONLY | os.O_CREAT | os.O_EXCL, 0o600)
+                    with os.fdopen(fd, 'w') as stream:
+                        json.dump({'version': 1, 'target': target, 'diagnostics': data}, stream)
+                        stream.write('\n')
+                    print('OK Report: Local baseline created; review it before sharing.')
+                except OSError:
+                    print('UNKNOWN Report: Could not create local baseline; existing files are never overwritten.')
+                    return 2
+            return code
+        if result is not None and result.returncode != 255:
+            print('UNKNOWN Probe: SSH connected but diagnostics failed; check Python 3 on the headset.')
+            return 1
+        reason = failure(result.stderr if result is not None else '')
+        print('WARN Connection (' + label + '): ' + reason)
+    # No /register call: an open devkit port cannot prove pairing mode is enabled.
+    hosts = (settings.get('hostname', args.alias), args.lan, args.usb)
+    if any(port_open(host, 32000) for host in hosts):
+        print('WARN Pairing: Devkit port responds. Use Set Up Connection and Developer > Pair new host; no pairing request was sent.')
+    else:
+        print('UNKNOWN Pairing: Devkit port did not respond. Needs your hands: wake headset, enable Developer Mode and check its address.')
+    for i, label in enumerate(SECTIONS, 1):
+        print(f'UNKNOWN {i}. {label}: No authenticated SSH path.')
+    return 2
+
+
+# Derive the output allowlist from literal strings, not remote data. This module
+# has no dynamic diagnostic messages. AST stays stdlib and runs only locally.
+def messages():
+    import ast
+    tree = ast.parse(Path(__file__).read_text())
+    allowed = set()
+    for function in tree.body:
+        if not isinstance(function, ast.FunctionDef) or function.name not in ('probe', 'storage', 'signal_check'):
+            continue
+        for node in ast.walk(function):
+            if (isinstance(node, ast.List) and len(node.elts) == 2
+                    and all(isinstance(e, ast.Constant) and isinstance(e.value, str) for e in node.elts)
+                    and node.elts[0].value in ('OK', 'WARN', 'BROKEN', 'UNKNOWN')):
+                allowed.add(node.elts[1].value)
+            if isinstance(node, ast.Call) and isinstance(node.func, ast.Name) and node.func.id == 'signal_check':
+                allowed.update(arg.value for arg in node.args[2:4] if isinstance(arg, ast.Constant))
+    return allowed
+
+
+if __name__ == '__main__':
+    if sys.argv[1:] == ['--probe']:
+        print(json.dumps(probe()))
+    else:
+        MESSAGES = messages()
+        sys.exit(main())
@@ -0,0 +1,54 @@
+"""Offline, accessible power report. No network requests or external resources."""
+import base64
+import html
+import json
+
+
+def render(report, csv_text):
+    def esc(value):
+        return html.escape(str(value), quote=True)
+
+    def download(text, mime, filename, label):
+        data = base64.b64encode(text.encode('utf-8')).decode('ascii')
+        return f'<a download="{filename}" href="data:{mime};base64,{data}">{label}</a>'
+
+    rows = []
+    for metric, item in report['summary'].items():
+        numeric = 'mean' in item
+        values = [item.get(key) for key in ('min', 'mean', 'max', 'last')]
+        cells = ''.join(f'<td>{esc(value) if value is not None else "Unknown"}</td>' for value in values)
+        states = ', '.join(item.get('states', [])) or ('Numeric' if numeric else 'Unknown')
+        rows.append(f'<tr><th scope="row">{esc(metric)}</th><td>{esc(item["unit"])}</td>'
+                    f'{cells}<td>{item["available"]} / {item["unavailable"]}</td>'
+                    f'<td>{esc(states)}</td><td>{esc(", ".join(item["sources"]))}</td></tr>')
+    missing = sorted({g for sample in report['samples'] for g in sample['unavailableGroups']})
+    json_text = json.dumps(report, allow_nan=False, indent=2)
+    links = download(json_text, 'application/json', 'frame-power.json', 'Download JSON samples and summary')
+    links += ' · ' + download(csv_text, 'text/csv', 'frame-power.csv', 'Download CSV samples')
+    return f'''<!doctype html>
+<html lang="en"><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1">
+<meta http-equiv="Content-Security-Policy" content="default-src 'none'; style-src 'unsafe-inline'; base-uri 'none'; form-action 'none'">
+<title>Frame power and heat report</title>
+<style>body{{font:16px system-ui,sans-serif;line-height:1.5;margin:24px;color:#18212b;background:#fff}}
+a{{color:#0645ad}}a:focus-visible{{outline:3px solid #0645ad;outline-offset:4px}}
+table{{border-collapse:collapse;width:100%;min-width:1100px}}th,td{{padding:8px;text-align:left;border:1px solid #adb5bd}}
+thead th,td{{white-space:nowrap}}th[scope=row]{{min-width:240px;max-width:300px;overflow-wrap:anywhere}}
+td:last-child{{min-width:220px;max-width:300px;white-space:normal;overflow-wrap:anywhere}}
+thead{{background:#edf1f5}}.scroll{{overflow:auto}}h1{{line-height:1.2}}</style>
+<main><h1>Frame power and heat report</h1>
+<p>Headset: {esc(report.get("headset", {}).get("alias", "frame"))}</p>
+<p>{len(report['samples'])} of {report['requestedSamples']} requested samples received; target interval {esc(report['intervalSeconds'])} seconds.</p>
+<p>Collection: {esc(report['stopped'] or 'Completed')}. Results describe only the samples received.</p>
+<p>{links}</p>
+<p>Unknown means missing, unreadable or invalid, never zero. Means exclude unknown values and are not time-weighted.
+Battery watts: positive charging, negative discharge. C means °C, W watts, A amps, MHz megahertz, RPM revolutions per minute.
+Raw readings have no inferred percentage or worn threshold. Rails overlap: do not sum them.</p>
+<p>Unavailable sensor groups in one or more samples: {esc(', '.join(missing) or 'None reported')}.</p>
+<div class="scroll" role="region" aria-label="Metric summary, scroll horizontally for all columns" tabindex="0">
+<table><caption>Received measurements, with units and availability counts</caption>
+<thead><tr><th scope="col">Metric</th><th scope="col">Unit</th><th scope="col">Min</th><th scope="col">Mean</th><th scope="col">Max</th><th scope="col">Last</th><th scope="col">Available / unknown</th><th scope="col">States</th><th scope="col">Sources</th></tr></thead>
+<tbody>{''.join(rows)}</tbody></table></div>
+<p>Sensor accuracy is unverified. Suspect negative thermistors remain visible. No temperature safety limits,
+energy use or battery-runtime estimates are inferred. JSON includes actual timing, OS builds and per-sample availability.</p>
+<p>This file stays on your computer and works offline. Downloaded files contain sensor source paths and OS builds;
+review them before sharing. No settings, services, security or passwords were changed.</p></main></html>'''
@@ -0,0 +1,359 @@
+"""Bounded read-only Frame measurements; no device files are written.
+
+The host sends this and frame_status.py over one trusted SSH connection. Only
+battery() and CPU tick helpers are reused: no OpenVR, services or analytics.
+"""
+import argparse
+import csv
+import glob
+import io
+import json
+import math
+from pathlib import Path
+import queue
+import subprocess
+import sys
+import tempfile
+import threading
+import time
+
+LOCK = Path('/tmp/frame-test.lock')
+UNAVAILABLE = 'unavailable: not reported, unreadable or invalid'
+
+
+def read(path):
+    try:
+        return Path(path).read_text().strip()
+    except (OSError, UnicodeError):
+        return None
+
+
+def number(path, scale=1, minimum=None, maximum=None):
+    try:
+        value = int(read(path)) * scale
+        if not math.isfinite(value):
+            return None
+        if minimum is not None and value < minimum or maximum is not None and value > maximum:
+            return None
+        return round(value, 6)
+    except (TypeError, ValueError, OverflowError):
+        return None
+
+
+def snapshot(status, before):
+    if LOCK.exists():
+        raise RuntimeError('Smoke session active (/tmp/frame-test.lock); no sensors read.')
+    ticks = status.cpu_ticks()
+    readings = {}
+
+    def add(key, value, unit, source):
+        readings[key] = {'value': value, 'unit': unit, 'source': source,
+                         'state': 'available' if value is not None else UNAVAILABLE}
+
+    battery = status.battery() or {}
+    for field, unit in (('percent', '%'), ('status', 'state'), ('watts', 'W'),
+                        ('tempC', 'C')):
+        value = battery.get(field)
+        if field == 'status' and value not in ('Charging', 'Discharging', 'Not charging', 'Full'):
+            value = None
+        add('battery.' + field, value, unit, battery.get('source'))
+    add('cpu.percent', status.cpu_percent(before, ticks), '%', '/proc/stat')
+    if before is None:
+        readings['cpu.percent']['state'] = 'unavailable: needs two valid CPU tick samples'
+    add('gpu.clock', number('/sys/class/devfreq/3d00000.gpu/cur_freq', 1e-6, 0),
+        'MHz', '/sys/class/devfreq/3d00000.gpu/cur_freq')
+
+    # Discover by driver name/label, never assume a hwmon index. Keep source
+    # paths and channel numbers to distinguish duplicate labels.
+    for node in sorted(glob.glob('/sys/class/hwmon/hwmon*')):
+        name = read(node + '/name') or Path(node).name
+        for path in sorted(glob.glob(node + '/power*_input')):
+            channel = Path(path).name[:-6]
+            label = read(node + '/' + channel + '_label') or channel
+            add(f'rail.{name}.{label}.{channel}', number(path, 1e-6, 0), 'W', path)
+        for path in sorted(glob.glob(node + '/fan*_input')):
+            add(f'fan.{name}.{Path(path).stem}', number(path, minimum=0), 'RPM', path)
+        # pwm1 on Frame's driver is percent; leave raw to avoid assuming the
+        # generic hwmon 0..255 scale on other drivers or later firmware.
+        if name == 'slg4ax46073v':
+            add('fan.pwmRaw', number(node + '/pwm1', minimum=0), 'raw', node + '/pwm1')
+    for node in sorted(glob.glob('/sys/class/thermal/thermal_zone*')):
+        name = read(node + '/type') or Path(node).name
+        add(f'thermal.{name}.{Path(node).name}', number(node + '/temp', 0.001, -273.15, 200),
+            'C', node + '/temp')
+    for node in sorted(glob.glob('/sys/bus/iio/devices/iio:device*')):
+        for path in sorted(glob.glob(node + '/in_temp_*_input')):
+            add(f'board.{Path(node).name}.{Path(path).stem}', number(path, 0.001, -273.15, 200),
+                'C', path)
+        for field in ('iin', 'ichg'):
+            path = node + '/in_current_pm8550b_' + field + '_fb_input'
+            # Known names, but no fixed IIO index; absent channels are covered
+            # by group availability below.
+            if Path(path).exists():
+                add(f'charger.{Path(node).name}.{field}', number(path, 1e-6), 'A', path)
+        if read(node + '/name') == 'vcnl4000':
+            add('proximity.raw', number(node + '/in_proximity_raw', minimum=0),
+                'raw', node + '/in_proximity_raw')
+    unavailable = [group for group in ('rail', 'fan', 'thermal', 'board', 'charger', 'proximity')
+                   if not any(k.startswith(group + '.') and v['value'] is not None
+                              for k, v in readings.items())]
+    os_info = dict(line.split('=', 1) for line in (read('/etc/os-release') or '').splitlines()
+                   if '=' in line)
+    return {'time': time.time(), 'osBuild': os_info.get('BUILD_ID', '').strip('"') or None,
+            'readings': readings, 'unavailableGroups': unavailable}, ticks
+
+
+def summarize(samples):
+    result = {}
+    keys = sorted({key for sample in samples for key in sample['readings']})
+    for key in keys:
+        rows = [s['readings'][key] for s in samples if key in s['readings']]
+        values = [r['value'] for r in rows if r['value'] is not None]
+        item = {'unit': rows[0]['unit'], 'sources': sorted({r['source'] for r in rows if r['source']}),
+                'available': len(values), 'unavailable': len(samples) - len(values)}
+        if values and all(isinstance(v, (int, float)) for v in values):
+            item.update(min=min(values), max=max(values), mean=round(sum(values) / len(values), 6),
+                        first=values[0], last=values[-1])
+        else:
+            item['states'] = sorted(set(values))
+        result[key] = item
+    return result
+
+
+def collect(status, count, interval, emit=None):
+    samples, before = [], None
+    started = time.monotonic()
+    stopped = None
+    for index in range(count):
+        if index:
+            time.sleep(max(0, started + index * interval - time.monotonic()))
+        try:
+            sample, before = snapshot(status, before)
+        except RuntimeError as exc:
+            stopped = str(exc)
+            break
+        sample['elapsedSeconds'] = round(time.monotonic() - started, 6)
+        samples.append(sample)
+        if emit:
+            emit({'sample': sample})
+    return {'schemaVersion': 1, 'requestedSamples': count, 'intervalSeconds': interval,
+            'stopped': stopped, 'samples': samples, 'summary': summarize(samples)}
+
+
+def csv_samples(report):
+    # CSV quoting alone does not prevent spreadsheet formulas in text fields.
+    def cell(value):
+        if isinstance(value, str) and (value.startswith(('\t', '\r', '\n')) or
+                                       value.lstrip(' \t\r\n').startswith(('=', '+', '-', '@'))):
+            return "'" + value
+        return value
+
+    output = io.StringIO(newline='')
+    writer = csv.writer(output)
+    writer.writerow(('time', 'elapsedSeconds', 'metric', 'value', 'unit', 'source', 'state'))
+    if 'headset' in report:
+        for key, value in (('collection.state', report['stopped'] or 'Completed'),
+                           ('collection.requestedSamples', report['requestedSamples']),
+                           ('collection.receivedSamples', len(report['samples']))):
+            writer.writerow([cell(v) for v in ('', '', key, value, '', report['headset']['alias'],
+                                              'incomplete' if report['stopped'] else 'completed')])
+    for sample in report['samples']:
+        for key, row in sample['readings'].items():
+            writer.writerow([cell(v) for v in (sample['time'], sample['elapsedSeconds'], key,
+                                               row['value'], row['unit'], row['source'], row['state'])])
+        for group in sample['unavailableGroups']:
+            writer.writerow([cell(v) for v in (sample['time'], sample['elapsedSeconds'], group, '', '', '', UNAVAILABLE)])
+    return output.getvalue()
+
+
+def parser():
+    ap = argparse.ArgumentParser(description=__doc__)
+    ap.add_argument('--count', type=int, default=12, help='samples, 1..720 (default 12)')
+    ap.add_argument('--interval', type=float, default=5, help='seconds, 1..60 (default 5)')
+    ap.add_argument('--csv', action='store_true', help='CSV samples on stdout; JSON summary on stderr')
+    ap.add_argument('--html', type=Path, metavar='FILE', help='save an offline accessible report with JSON/CSV downloads; Ctrl+C retains received samples (max 10 minutes); never overwrites')
+    ap.add_argument('--probe', action='store_true', help=argparse.SUPPRESS)
+    ap.add_argument('--stream', action='store_true', help=argparse.SUPPRESS)
+    return ap
+
+
+def remote_payload():
+    root = Path(__file__).resolve().parents[1]
+    source = (root / 'ui/frame_status.py').read_text()
+    # Executing as a module prevents frame_status.main() from probing unrelated
+    # status. Nothing is installed, cached or logged on the headset.
+    return ('import types, sys\n'
+            'status = types.ModuleType("frame_status")\n'
+            f'exec(compile({source!r}, "frame_status.py", "exec"), status.__dict__)\n'
+            'sys.modules["frame_status"] = status\n' + Path(__file__).read_text())
+
+
+def stream_report(command, payload, count, interval, stop_event=None, on_sample=None, discard_errors=False):
+    """Receive each sample before the next wait; stop only our local SSH child.
+
+    The remote bounded reader exits on its next write to the closed connection.
+    No remote process-control command is sent. Keep already received samples on
+    interrupt, transport failure or deadline, clearly marked as incomplete.
+    """
+    if stop_event is not None and stop_event.is_set():
+        return {'schemaVersion': 1, 'requestedSamples': count, 'intervalSeconds': interval,
+                'stopped': 'Stopped before collection; no SSH started', 'samples': [], 'summary': {}}
+    samples, final, stopped = [], None, None
+    events = queue.Queue(maxsize=count + 2)
+    reader_stop = threading.Event()
+    deadline = time.monotonic() + count * interval + 30
+    with tempfile.TemporaryFile(mode='w+') as errors:
+        proc = subprocess.Popen(command + ['--stream'], stdin=subprocess.PIPE,
+                                stdout=subprocess.PIPE, stderr=subprocess.DEVNULL if discard_errors else errors, text=True)
+        def receive():
+            try:
+                for _ in range(count + 2):
+                    line = proc.stdout.readline(262145)
+                    if not line:
+                        break
+                    if len(line) > 262144 or not line.endswith('\n'):
+                        line = 'invalid or oversized sample'
+                    while not reader_stop.is_set():
+                        try:
+                            events.put(line, timeout=0.2)
+                            break
+                        except queue.Full:
+                            continue
+                    if reader_stop.is_set():
+                        return
+            finally:
+                while not reader_stop.is_set():
+                    try:
+                        events.put(None, timeout=0.2)
+                        break
+                    except queue.Full:
+                        continue
+        reader = threading.Thread(target=receive, daemon=True)
+        reader.start()
+        def feed():
+            try:
+                proc.stdin.write(payload)
+                proc.stdin.close()
+            except OSError:
+                pass  # transport exit/EOF below marks the observation incomplete
+        writer = threading.Thread(target=feed, daemon=True)
+        writer.start()
+        try:
+            while True:
+                if stop_event is not None and stop_event.is_set() and events.empty():
+                    stopped = 'Stopped; received samples retained'
+                    break
+                remaining = deadline - time.monotonic()
+                if remaining <= 0:
+                    stopped = 'Timed out; received samples retained'
+                    break
+                try:
+                    line = events.get(timeout=min(remaining, 0.2))
+                except queue.Empty:
+                    continue
+                if line is None:
+                    break
+                event = json.loads(line)
+                if 'sample' in event:
+                    if len(samples) >= count:
+                        raise ValueError('Too many samples received')
+                    samples.append(event['sample'])
+                    if on_sample:
+                        on_sample(event['sample'])
+                    print(f'Received {len(samples)}/{count} samples; Ctrl+C to stop and save.', file=sys.stderr)
+                elif 'finished' in event:
+                    final = event['finished']
+            if not stopped:
+                proc.wait(timeout=max(0.1, deadline - time.monotonic()))
+        except KeyboardInterrupt:
+            stopped = 'Stopped by user; received samples retained'
+        except (OSError, ValueError, subprocess.TimeoutExpired) as exc:
+            stopped = f'Collection interrupted: {exc}'
+        finally:
+            reader_stop.set()
+            if proc.poll() is None:
+                proc.terminate()
+                try:
+                    proc.wait(timeout=3)
+                except subprocess.TimeoutExpired:
+                    proc.kill()
+                    proc.wait(timeout=3)
+            writer.join(timeout=3)
+            if not proc.stdin.closed:
+                try:
+                    proc.stdin.close()
+                except OSError:
+                    pass
+            reader.join(timeout=3)
+            proc.stdout.close()
+        if not stopped:
+            errors.seek(0)
+            if final and final.get('stopped') and proc.returncode in (0, 75):
+                stopped = final['stopped']
+            elif proc.returncode or final is None or len(samples) != count:
+                stopped = f'Incomplete collection (SSH exit {proc.returncode}): ' + errors.read(2000).strip()
+    return {'schemaVersion': 1, 'requestedSamples': count, 'intervalSeconds': interval,
+            'stopped': stopped, 'samples': samples, 'summary': summarize(samples)}
+
+
+def main(argv=None):
+    ap = parser()
+    args = ap.parse_args(argv)
+    if not 1 <= args.count <= 720 or not math.isfinite(args.interval) or not 1 <= args.interval <= 60:
+        ap.error('count must be 1..720 and interval must be finite, 1..60 seconds')
+    if args.html and (args.csv or args.probe or args.count * args.interval > 600):
+        ap.error('--html requires a host session, no --csv, and count × interval <= 600 seconds')
+    if args.html and args.html.exists():
+        ap.error('--html output already exists; choose a new file')
+    # Also honor a coordinator lock on the computer before opening SSH.
+    if LOCK.exists():
+        if args.probe and args.stream:
+            print(json.dumps({'finished': {'stopped': 'Smoke session active (/tmp/frame-test.lock); no sensors read'}}), flush=True)
+        print('Smoke session active (/tmp/frame-test.lock); no SSH or sensors accessed.', file=sys.stderr)
+        return 75
+    if args.probe:
+        import frame_status
+        emit = (lambda event: print(json.dumps(event, allow_nan=False), flush=True)) if args.stream else None
+        report = collect(frame_status, args.count, args.interval, emit)
+        if args.stream:
+            emit({'finished': {'stopped': report['stopped']}})
+            return 75 if report['stopped'] else 0
+    else:
+        command = ['ssh', '-T', '-o', 'BatchMode=yes', '-o', 'StrictHostKeyChecking=yes',
+                   '-o', 'ConnectTimeout=5', '-o', 'ServerAliveInterval=5',
+                   '-o', 'ServerAliveCountMax=2', 'frame',
+                   'python3', '-', '--probe', '--count', str(args.count), '--interval', str(args.interval)]
+        try:
+            if args.html:
+                report = stream_report(command, remote_payload(), args.count, args.interval)
+            else:
+                run = subprocess.run(command, input=remote_payload(), text=True, capture_output=True,
+                                     timeout=args.count * args.interval + 30)
+                if run.returncode:
+                    print('Read-only sample failed: ' + (run.stderr.strip() or f'SSH exit {run.returncode}'),
+                          file=sys.stderr)
+                    return run.returncode
+                report = json.loads(run.stdout)
+        except (OSError, subprocess.TimeoutExpired, ValueError) as exc:
+            print(f'Read-only sample unavailable: {exc}', file=sys.stderr)
+            return 1
+    if args.html:
+        from frame_power_report import render
+        try:
+            with args.html.open('x', encoding='utf-8') as output:
+                output.write(render(report, csv_samples(report)))
+        except OSError as exc:
+            print(f'Could not save report: {exc}; received JSON report follows on stdout.', file=sys.stderr)
+            print(json.dumps(report, allow_nan=False))
+            return 1
+        print(f'Saved {len(report["samples"])} samples to {args.html}. Open it in your browser.', file=sys.stderr)
+    elif args.csv:
+        sys.stdout.write(csv_samples(report))
+        print(json.dumps({k: v for k, v in report.items() if k != 'samples'}, allow_nan=False), file=sys.stderr)
+    else:
+        print(json.dumps(report, allow_nan=False))
+    return 75 if report['stopped'] else 0
+
+
+if __name__ == '__main__':
+    sys.exit(main())
@@ -55,6 +55,7 @@ from urllib.parse import quote, urlencode  # %20, not +: the agent's URLComponen
 ROOT = Path(__file__).resolve().parent.parent
 sys.path.insert(0, str(ROOT / "ui"))
 import frame_macview  # noqa: E402
+import frame_pcview  # noqa: E402

 RESULTS = ROOT / "bench" / "results"
 PAGES = ROOT / "bench" / "pages"
@@ -254,7 +255,10 @@ class LabView(frame_macview.MacView):

 def ssh_runner(base):
    def run(remote, stdin=None, timeout=30):
-        r = subprocess.run([*base, remote], input=stdin, capture_output=True, text=True, timeout=timeout)
+        r = subprocess.run([*base, remote], input=stdin.encode("utf-8") if stdin is not None else None,
+                           capture_output=True, timeout=timeout)
+        r.stdout = r.stdout.decode("utf-8", errors="replace")
+        r.stderr = r.stderr.decode("utf-8", errors="replace")
        if r.returncode:
            e = RuntimeError((r.stderr or r.stdout).strip())
            e.stdout = r.stdout
@@ -381,7 +385,11 @@ def run_scenario(args, scenario, agent_port, token, frame_ssh):
    if args.browser_flag is not None:
        mv.browser_flags = [f for f in args.browser_flag if f]
    chrome = None
-    src = "test"
+    src = args.source or "test"
+    cpu = None
+    if args.pc:
+        mv.host = "windows" if sys.platform == "win32" else "linux"
+        mv.viewer_profile = "pc-view"
    try:
        if scenario in ("scroll", "type"):
            chrome = chrome_window(f"{scenario}.html")
@@ -405,9 +413,10 @@ def run_scenario(args, scenario, agent_port, token, frame_ssh):
        since = max([f["s"] for f in first["frames"]] or [0])
        captured_before = first["captured"]
        start_mac_us = mv.call("/stats", id=stream["id"])["now"]
-        agent_pid = int(subprocess.run(["pgrep", "-f", "Frame Mac View Lab.app/Contents/MacOS/frame-mac-view"],
-                                       capture_output=True, text=True).stdout.split()[0])
-        cpu = CpuSampler(frame_ssh, agent_pid)
+        if not args.pc:
+            agent_pid = int(subprocess.run(["pgrep", "-f", "Frame Mac View Lab.app/Contents/MacOS/frame-mac-view"],
+                                           capture_output=True, text=True).stdout.split()[0])
+            cpu = CpuSampler(frame_ssh, agent_pid)
        if relay:
            relay.begin()
        expected = 0  # input events the harness asked the viewer for
@@ -443,7 +452,8 @@ def run_scenario(args, scenario, agent_port, token, frame_ssh):
        if not streams:
            raise SystemExit(f"{scenario}: the stream ended during the run (did the Frame go to sleep?)")
        data = streams[0]
-        cpu.stop()
+        if cpu:
+            cpu.stop()
        if args.raw:
            Path(f"{args.raw}-{scenario}.json").write_text(json.dumps(data))
        result = summarize(scenario, data, start_mac_us, end_mac_us, args, relay, schedule, expected)
@@ -452,7 +462,7 @@ def run_scenario(args, scenario, agent_port, token, frame_ssh):
                            for e in data.get("events", []) if e["t"] >= start_mac_us]
        result["captured"] = (captured_end if captured_end is not None else data["captured"]) - captured_before
        result["source_fps"] = round(result["captured"] / max(result["duration_s"], 1), 1)
-        result["cpu"] = cpu.summary()
+        result["cpu"] = cpu.summary() if cpu else {"host": "not sampled"}
        result["viewer"] = data["summary"].get("decoder", "")
        result["show_s"] = show_s
        result["panel"] = shown.get("panel")
@@ -460,6 +470,8 @@ def run_scenario(args, scenario, agent_port, token, frame_ssh):
        result["route"] = mv.route
        return result
    finally:
+        if cpu:
+            cpu.stop()
        try:
            mv.stop(src)
        except Exception:  # noqa: BLE001 - best effort
@@ -670,6 +682,8 @@ def fmt(v):

 def add_run_args(r):
    r.add_argument("--scenario", default="test,scroll,type")
+    r.add_argument("--pc", action="store_true", help="run the bundled PC host; use --scenario test or capture")
+    r.add_argument("--source", default="", help="PC source: window:ID, display:ID, or choose (Linux portal)")
    r.add_argument("--duration", type=float, default=20)
    r.add_argument("--warmup", type=float, default=3)
    r.add_argument("--quality", default="balanced", choices=list(frame_macview.QUALITY))
@@ -717,7 +731,7 @@ def frame_ssh_for(args):


 def run_suite(args, frame_ssh, quiet=False):
-    agent_port, token = lab_agent()
+    agent_port, token = (args.pc_view.port, args.pc_view.token) if args.pc else lab_agent()
    results = []
    for sc in args.scenario.split(","):
        if not quiet:
@@ -744,11 +758,12 @@ def document(args, frame_ssh, results, **extra):
    commit = git("rev-parse", "--short", "HEAD") + ("+dirty" if git("status", "--porcelain", "--", "mac", "ui") else "")
    return {
        "label": args.label or args.cmd, "date": datetime.datetime.now().isoformat(timespec="seconds"), "commit": commit,
-        "config": {"quality": args.quality, "mode": args.mode, "net": args.net or "none", "delay_ms": args.delay,
+        "config": {"quality": args.quality, "mode": "native" if args.pc else args.mode, "net": args.net or "none", "delay_ms": args.delay,
                   "buffer_ms": args.buffer, "host": args.host or args.frame, "usb": args.usb, "ssh_opts": args.ssh_opt,
                   "encoder": os.environ.get("FRAME_MAC_VIEW_ENCODER", ""), "duration_s": args.duration,
                   "browser_flags": args.browser_flag if args.browser_flag is not None else frame_macview.BROWSER_FLAGS},
-        "frame_build": build.strip().partition("=")[2], "mac": platform.mac_ver()[0], "headset": standby[-40:],
+        "frame_build": build.strip().partition("=")[2], "mac": platform.mac_ver()[0],
+        "host_platform": platform.platform(), "source": args.source, "pc_host": args.pc, "headset": standby[-40:],
        "scenarios": results, **extra,
    }

@@ -819,19 +834,46 @@ def main():
            print("\nworse:\n  " + "\n  ".join(regs))
        sys.exit(1 if regs else 0)

-    lab_agent()
+    if args.pc and (args.cmd == "ab" or args.scenario not in ("test", "capture")):
+        p.error("PC runs use --scenario test or --scenario capture; Mac automation is not portable")
+    if args.pc and args.scenario == "capture" and not args.source:
+        p.error("capture needs --source window:ID, display:ID, or choose")
+    if not args.pc:
+        lab_agent()
    frame_ssh = frame_ssh_for(args)
    # Keep the Mac's screen awake: virtual displays aren't removed while it sleeps.
    runs = 1 if args.cmd == "run" else args.repeat * len(args.arm)
-    awake = subprocess.Popen(["caffeinate", "-d", "-u", "-t", str(int(runs * (args.duration * 4 + 60) + 120))])
+    awake = subprocess.Popen(["caffeinate", "-d", "-u", "-t", str(int(runs * (args.duration * 4 + 60) + 120))]) if sys.platform == "darwin" else None
+    args.pc_view = None
    try:
+        if args.pc:
+            args.pc_view = frame_pcview.PCView(frame_ssh[:-1], ssh_runner(frame_ssh), frame_ssh[-1])
+            args.pc_view.ensure_agent()
+            if args.source == "choose":
+                args.pc_view.call("/permissions", method="POST")
+                print("Choose a window or screen in your desktop's sharing dialog.", flush=True)
+                deadline = time.monotonic()+125
+                while time.monotonic() < deadline:
+                    state = args.pc_view.call("/status")
+                    if not state.get("selecting"):
+                        sources = args.pc_view.call("/windows")["windows"]
+                        if not sources:
+                            raise SystemExit(state.get("selectionError") or "Nothing was shared")
+                        args.source = sources[-1]["src"]
+                        break
+                    time.sleep(.5)
+                else:
+                    raise SystemExit("Sharing dialog timed out")
        if args.cmd == "ab":
            arm_runs, table = ab(args, frame_ssh)
            write(document(args, frame_ssh, [], arms=args.arm, runs=arm_runs, table=table), args)
            return
        results = run_suite(args, frame_ssh)
    finally:
-        awake.terminate()
+        if args.pc_view:
+            args.pc_view.shutdown()
+        if awake:
+            awake.terminate()
    doc = document(args, frame_ssh, results)
    write(doc, args)
    bad = [f"{r['scenario']} {k}" for r in results for k, v in r["grades"].items() if v in ("bad", "missing")]
@@ -5,7 +5,8 @@ The Frame Control website, <https://frame-control.pages.dev>, on Cloudflare Page
 - `public/`: static pages. `/` is the landing page, `/feedback/` the feedback form, `/privacy/` the privacy note.
 - `functions/api/feedback.js`: `POST /api/feedback`, which turns the form into a GitHub issue labelled `feedback`.
 - `lib/feedback.js`: validation and issue formatting, tested by `test/feedback.test.mjs`.
- `public/js/site.js`: settings, including the Ko-fi page name for the donate buttons.
+- `public/js/site.js`: settings, including the Ko-fi page name for the donate buttons, OS hints and opening-help deep links. OS hints lead to instructions, never directly to an architecture-specific installer.
+- `test/onboarding.test.mjs`: desktop/mobile browser hints and opening-help deep links.

 ## Feedback → GitHub issues

@@ -33,3 +34,30 @@ npx wrangler pages deploy --branch main      # production
 ```

 Point `GITHUB_REPO` in `.dev.vars` at a scratch repo when testing locally so test issues don't land on the real tracker.
+
+## First-run verification
+
+Before changing download or setup instructions:
+
+- Compare every linked filename with `gh release view --repo saphid/frame-control --json tagName,assets`.
+  Browser OS hints cannot establish CPU architecture; keep every platform choice visible.
+- Run `node --test site/test/*.test.mjs` from the repo root, plus
+  `node --check site/public/js/site.js` and `node --check site/public/js/feedback.js`.
+- Serve `public/` locally (for example `python3 -m http.server 8793 --directory site/public`
+  from the repo root). Check 320px, 390px, 768px and desktop widths: section navigation,
+  the hero link, download cards, opening-help links, feedback and privacy pages. Check
+  horizontal overflow and that anchor targets clear the sticky header. Repeat with
+  JavaScript disabled: downloads and navigation must remain available.
+- Check setup labels against `app/main.js`, `scripts/connect.sh`, `ui/frame_connect.py`
+  and the Devices page. macOS discovery failure exits; Windows/Linux prompt for an IP.
+  The app's Devices → Add a headset dialog can pass an explicit address on all platforms.
+- Separate website checks from native installation and real-headset pairing evidence.
+  A successful page/link check does not verify an installer or headset approval flow.
+
+On 2026-10-24, the first-run update was checked against published v0.4.16 assets:
+all seven linked desktop installers returned HTTP 200 after redirects, as did the
+linked GitHub documentation and trailer. Local page/resource links and section
+fragments were checked; navigation stayed visible without horizontal overflow at
+320, 390, 768 and 1280 CSS pixels. Native macOS/Windows installs and real-headset
+pairing were not exercised for this documentation change. No site deployment was
+performed.
@@ -38,8 +38,13 @@ code { font: 14px ui-monospace, SFMono-Regular, Menlo, monospace; background: rg
 .top nav a { color: var(--muted); font-size: 14.5px; font-weight: 500; }
 .top nav a:hover, .top nav a[aria-current] { color: var(--bright); }
 .top .end { margin-left: auto; display: flex; gap: 10px; align-items: center; }
-@media (max-width: 880px) { .top nav { display: none; } }
-@media (max-width: 480px) { .top .end .ghost { display: none; } }
+@media (max-width: 1050px) {
+  html { scroll-padding-top: 150px; }
+  .top .wrap { height: auto; min-height: 64px; flex-wrap: wrap; gap: 8px 16px; padding-top: 12px; padding-bottom: 8px; }
+  .top nav { order: 3; width: 100%; margin-left: 0; flex-wrap: wrap; gap: 0 18px; }
+  .top nav a { padding: 8px 0; }
+}
+@media (max-width: 480px) { .top .end { display: none; } }

 /* ---- buttons ---- */
 .btn { display: inline-flex; align-items: center; justify-content: center; gap: 9px; height: 46px; padding: 0 22px; border-radius: 10px;
@@ -199,3 +204,11 @@ textarea { min-height: 180px; resize: vertical; }
 .done p { color: var(--muted); margin: 10px auto 24px; max-width: 460px; }
 .done .cta { margin-top: 0; }
 .page h1 { font-size: clamp(34px, 5vw, 48px); }
+
+/* Opening instructions remain readable on narrow screens. */
+.dl p, .setup-note { color: var(--muted); font-size: 15px; margin-top: 16px; }
+.dl { min-width: 0; }
+code { overflow-wrap: anywhere; }
+pre { white-space: pre-wrap; overflow-wrap: anywhere; }
+pre code { background: none; padding: 0; }
+@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
@@ -4,7 +4,7 @@
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <title>Frame Control: manage your Steam Frame from your computer</title>
-<meta name="description" content="Free, open-source app for the Valve Steam Frame. See what the headset sees, install Steam games and Android apps, move files and text across, and check battery and status. macOS, Windows, Linux and iPhone.">
+<meta name="description" content="Free, open-source app for the Valve Steam Frame. See what the headset sees, install Steam games and Android apps, move files and text across, and check battery and status. Desktop downloads for macOS, Windows and Linux; iPhone build instructions.">
 <meta name="theme-color" content="#0e141b">
 <link rel="icon" href="/favicon.png">
 <link rel="apple-touch-icon" href="/apple-touch-icon.png">
@@ -41,13 +41,13 @@
 <main>
 <section class="hero">
  <div class="wrap">
-    <span class="eyebrow"><b>Free and open source</b><span class="sep"> · </span><span class="plats">macOS · Windows · Linux · iPhone</span></span>
+    <span class="eyebrow"><b>Free and open source</b><span class="sep"> · </span><span class="plats">macOS · Windows · Linux</span></span>
    <h1>Your Steam Frame, <span>managed from your desk.</span></h1>
-    <p class="lede">See what the headset sees, install games and Android apps, move files and text across, and keep an eye on battery and status. All over SSH, with nothing to install on the Frame.</p>
+    <p class="lede">See what the headset sees, install games and Android apps, move files and text across, and keep an eye on battery and status. Install Frame Control on your computer, then connect to your headset over SSH. This website provides downloads and instructions; it does not control the headset in your browser.</p>
    <div class="cta">
      <a class="btn primary" id="hero-download" href="#download">
        <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M12 3v12m0 0-5-5m5 5 5-5M4 20h16"/></svg>
-        <span data-label>Download Frame Control</span>
+        <span data-label>Choose your computer’s download</span>
      </a>
      <a class="btn ghost" href="#trailer">
        <svg viewBox="0 0 24 24" fill="currentColor" aria-hidden="true"><path d="M8 5.5v13a1 1 0 0 0 1.5.86l10.5-6.5a1 1 0 0 0 0-1.72L9.5 4.64A1 1 0 0 0 8 5.5z"/></svg>
@@ -173,7 +173,7 @@
    <div class="head">
      <span class="kicker">iPhone and iPad</span>
      <h2>Also in your pocket</h2>
-      <p>The same features on iPhone and iPad, served from the Frame itself, so there's nothing to run on a computer. Build it from the repo in Xcode.</p>
+      <p>The same features on iPhone and iPad, served from the Frame itself, so there's nothing to run on a computer. There is no App Store, TestFlight or iOS download in the current release. Building it requires a Mac, Xcode and your own signing team. <a href="https://github.com/saphid/frame-control/blob/main/docs/iphone.md">iPhone build and pairing instructions</a>.</p>
    </div>
    <div class="phones">
      <img src="/img/phone-home.jpg" width="600" height="1304" loading="lazy" alt="Frame Control on iPhone: headset view and device status.">
@@ -186,23 +186,24 @@
  <div class="wrap">
    <div class="head">
      <span class="kicker">Setup</span>
-      <h2>One password, typed once</h2>
-      <p>Everything else happens on your computer.</p>
+      <h2>Connect your computer to the Frame</h2>
+      <p>First <a href="#download">install and open the desktop app</a>. Keep the headset awake, on the same trusted network as your computer. Guest Wi-Fi or client isolation can block the connection.</p>
    </div>
    <div class="steps">
      <div class="card">
-        <h3>Turn on Developer Mode</h3>
-        <p>On the Frame: Steam Settings → System → <b>Enable Developer Mode</b>, then <b>Set User Password</b> in the Developer section.</p>
+        <h3>Prepare the headset</h3>
+        <p>On the Frame: Steam Settings → System → <b>Enable Developer Mode</b>, then Developer → <b>Set User Password</b>. Choose a password that isn't easy to guess; it also protects remote desktop and <code>sudo</code>.</p>
      </div>
      <div class="card">
-        <h3>Set up the connection</h3>
-        <p>Open Frame Control and choose <b>Set Up Connection</b>. It finds the headset, makes an SSH key, and asks for that password once.</p>
+        <h3>Run connection setup</h3>
+        <p>In the desktop app, choose <b>Set Up Connection…</b>. If you skipped the first prompt, use <b>Frame → Set Up Connection…</b>. A terminal opens. If discovery fails, find the Frame's IP in Quick Settings or Steam Settings → Internet. Windows/Linux setup prompts for it. On macOS, return to the app → <b>Devices &amp; connection → + Add a headset…</b>, use SSH alias <code>frame</code> for the default headset, enter the IP in <b>Address</b> and choose <b>Set Up…</b>.</p>
      </div>
      <div class="card">
-        <h3>That's it</h3>
-        <p>The app reaches the headset whenever it's awake and on the same network. For anywhere else, use <a href="https://github.com/saphid/frame-control/blob/main/docs/tailscale.md">Tailscale</a>.</p>
+        <h3>Pair, with a password fallback</h3>
+        <p>Setup tries Valve's pairing first: open Developer → <b>Pair new host</b> in the headset and approve only your request. If it fails or times out, enter the Developer Mode password in the computer's terminal (typing may be invisible), then press Enter.</p>
      </div>
    </div>
+    <p class="setup-note">The devkit service and pairing-mode step were checked on a Frame; approval and key installation through that flow remain unverified. <a href="https://github.com/saphid/frame-control/blob/main/docs/ssh.md#password-free-pairing-steamos-devkit-service">Pairing details</a>. After setup succeeds, return to the app; future connections use SSH keys. Still offline? Check Developer Mode, the IP and network isolation, then rerun setup. For use away from home, see <a href="https://github.com/saphid/frame-control/blob/main/docs/tailscale.md">Tailscale</a>.</p>
  </div>
 </section>

@@ -211,32 +212,39 @@
    <div class="head">
      <span class="kicker">Download</span>
      <h2>Get Frame Control</h2>
-      <p>Free, with Python and adb built in. <span hidden>Version <span data-version></span>.</span> <a href="https://github.com/saphid/frame-control/releases">Release notes</a></p>
+      <p>Choose your computer’s OS and processor, not the headset’s. Python is bundled; Linux needs <code>ssh</code>, and arm64 Linux also needs your distribution’s <code>adb</code> for Android apps. <span hidden>Version <span data-version></span>.</span> <a href="https://github.com/saphid/frame-control/releases">Release notes</a></p>
    </div>
    <div class="downloads">
-      <div class="dl" data-os="mac">
-        <div class="os"><svg viewBox="0 0 24 24" fill="currentColor"><path d="M16.37 12.6c-.02-2.2 1.8-3.26 1.88-3.31-1.02-1.5-2.62-1.7-3.19-1.72-1.36-.14-2.65.8-3.34.8-.69 0-1.75-.78-2.88-.76a4.27 4.27 0 0 0-3.6 2.19c-1.53 2.66-.39 6.6 1.1 8.76.73 1.06 1.6 2.24 2.74 2.2 1.1-.04 1.51-.71 2.84-.71 1.32 0 1.7.71 2.86.69 1.18-.02 1.93-1.08 2.65-2.14.83-1.23 1.18-2.41 1.2-2.47-.03-.01-2.3-.88-2.32-3.5zM14.2 6.13c.6-.73 1.01-1.75.9-2.76-.87.04-1.92.58-2.54 1.3-.56.64-1.05 1.67-.92 2.66.97.08 1.96-.49 2.56-1.2z"/></svg><h3>macOS</h3><span class="tag" hidden>Your system</span></div>
-        <span class="need">Apple Silicon</span>
+      <div class="dl" id="download-mac" data-os="mac">
+        <div class="os"><svg viewBox="0 0 24 24" fill="currentColor"><path d="M16.37 12.6c-.02-2.2 1.8-3.26 1.88-3.31-1.02-1.5-2.62-1.7-3.19-1.72-1.36-.14-2.65.8-3.34.8-.69 0-1.75-.78-2.88-.76a4.27 4.27 0 0 0-3.6 2.19c-1.53 2.66-.39 6.6 1.1 8.76.73 1.06 1.6 2.24 2.74 2.2 1.1-.04 1.51-.71 2.84-.71 1.32 0 1.7.71 2.86.69 1.18-.02 1.93-1.08 2.65-2.14.83-1.23 1.18-2.41 1.2-2.47-.03-.01-2.3-.88-2.32-3.5zM14.2 6.13c.6-.73 1.01-1.75.9-2.76-.87.04-1.92.58-2.54 1.3-.56.64-1.05 1.67-.92 2.66.97.08 1.96-.49 2.56-1.2z"/></svg><h3>macOS</h3><span class="tag" hidden>OS detected</span></div>
+        <span class="need">Apple Silicon (M-series) only · no Intel Mac build</span>
        <div class="links">
          <a class="btn primary" href="https://github.com/saphid/frame-control/releases/latest/download/Frame-Control-mac-arm64.dmg">Download .dmg</a>
        </div>
+        <p>Check Apple menu → About This Mac for your chip. Open the DMG, drag Frame Control to Applications, then open it there. Allow local network access and Terminal control when asked.</p>
+        <p>The app isn't notarized. <a href="#mac-opening">macOS opening instructions</a>.</p>
      </div>
-      <div class="dl" data-os="windows">
-        <div class="os"><svg viewBox="0 0 24 24" fill="currentColor"><path d="M3 5.5 10 4.5v7H3zM11 4.35 21 3v8.5H11zM3 12.5h7v7L3 18.5zM11 12.5h10V21l-10-1.4z"/></svg><h3>Windows</h3><span class="tag" hidden>Your system</span></div>
+      <div class="dl" id="download-windows" data-os="windows">
+        <div class="os"><svg viewBox="0 0 24 24" fill="currentColor"><path d="M3 5.5 10 4.5v7H3zM11 4.35 21 3v8.5H11zM3 12.5h7v7L3 18.5zM11 12.5h10V21l-10-1.4z"/></svg><h3>Windows</h3><span class="tag" hidden>OS detected</span></div>
        <span class="need">Windows 10 or 11, x64</span>
        <div class="links">
          <a class="btn primary" href="https://github.com/saphid/frame-control/releases/latest/download/Frame-Control-Setup-x64.exe">Download installer</a>
          <a class="btn ghost" href="https://github.com/saphid/frame-control/releases/latest/download/Frame-Control-win-x64.zip">Portable .zip</a>
        </div>
+        <p>Check Settings → System → About → System type. No native Windows ARM build is published. Run the installer, then open Frame Control from Start. The OpenSSH Client optional feature must be installed (it normally is). For portable use, extract the entire ZIP and run <code>Frame Control.exe</code>.</p>
+        <p>The installer isn't code-signed. <a href="#windows-opening">SmartScreen instructions</a>.</p>
      </div>
-      <div class="dl" data-os="linux">
-        <div class="os"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><rect x="3" y="4" width="18" height="16" rx="2"/><path d="m7 9 3 3-3 3M13 15h4"/></svg><h3>Linux</h3><span class="tag" hidden>Your system</span></div>
+      <div class="dl" id="download-linux" data-os="linux">
+        <div class="os"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><rect x="3" y="4" width="18" height="16" rx="2"/><path d="m7 9 3 3-3 3M13 15h4"/></svg><h3>Linux</h3><span class="tag" hidden>OS detected</span></div>
        <span class="need">x64 or arm64 · needs <code>ssh</code></span>
        <div class="links">
          <a class="btn primary" href="https://github.com/saphid/frame-control/releases/latest/download/Frame-Control-linux-x86_64.AppImage">AppImage (x64)</a>
          <a class="btn ghost" href="https://github.com/saphid/frame-control/releases/latest/download/Frame-Control-linux-amd64.deb">.deb (x64)</a>
          <a class="btn ghost" href="https://github.com/saphid/frame-control/releases/latest/download/Frame-Control-linux-arm64.AppImage">AppImage (arm64)</a>
+          <a class="btn ghost" href="https://github.com/saphid/frame-control/releases/latest/download/Frame-Control-linux-arm64.deb">.deb (arm64)</a>
        </div>
+        <p>Run <code>uname -m</code>: <code>x86_64</code> means x64; <code>aarch64</code> means arm64. Install the matching .deb on Debian/Ubuntu and open Frame Control from your applications menu, or use AppImage on other distributions.</p>
+        <p><a href="#linux-opening">AppImage permissions and FUSE help</a>. On arm64 Debian/Ubuntu, install <code>adb</code> with <code>sudo apt install adb</code> for Android apps.</p>
      </div>
    </div>
  </div>
@@ -249,15 +257,22 @@
      <h2>Good questions</h2>
    </div>
    <div class="faq">
-      <details>
+      <details id="mac-opening">
        <summary>macOS says the app is damaged or can't be checked</summary>
-        <div><p>The app isn't notarized, because there's no paid Apple developer account behind it. Drag it to Applications, then clear the download quarantine once in Terminal:</p>
+        <div><p>The app isn't notarized, because there's no paid Apple developer account behind it. Only for a download you trust from the releases linked above: drag it to Applications, then clear the download quarantine once in Terminal:</p>
        <p><code>xattr -dr com.apple.quarantine "/Applications/Frame Control.app"</code></p></div>
      </details>
-      <details>
+      <details id="windows-opening">
        <summary>Windows SmartScreen says it protected my PC</summary>
        <div><p>The installer isn't code-signed. Choose <b>More info → Run anyway</b>, or use the portable .zip: unzip it anywhere and run <code>Frame Control.exe</code>.</p></div>
      </details>
+      <details id="linux-opening">
+        <summary>How do I open the Linux AppImage?</summary>
+        <div><p>In a terminal in your download folder, use the exact filename for your architecture. For x64:</p>
+        <pre><code>chmod +x Frame-Control-linux-x86_64.AppImage
+./Frame-Control-linux-x86_64.AppImage</code></pre>
+        <p>If FUSE is missing, install <code>libfuse2</code> (Ubuntu 24.04+: <code>libfuse2t64</code>), or run the same AppImage with <code>--appimage-extract-and-run</code>. Install your distribution’s OpenSSH client if <code>ssh</code> is missing.</p></div>
+      </details>
      <details>
        <summary>What does it change on my headset?</summary>
        <div><p>Only what you click. Installs go to your user account on the Frame, and nothing needs <code>sudo</code> except the power buttons. On your computer it adds a <code>Host frame</code> entry to <code>~/.ssh/config</code> and two SSH keys.</p></div>
@@ -5,8 +5,6 @@ const SITE = {
  kofi: "alexsouthwell",
 };

-const RELEASE = `https://github.com/${SITE.repo}/releases/latest/download/`;
-
 // Donate buttons.
 for (const el of document.querySelectorAll("[data-kofi]")) {
  if (SITE.kofi) el.href = `https://ko-fi.com/${SITE.kofi}`;
@@ -15,37 +13,39 @@ for (const el of document.querySelectorAll("[data-kofi]")) {
 for (const el of document.querySelectorAll("[data-needs-kofi]")) el.hidden = !SITE.kofi;
 for (const el of document.querySelectorAll("[data-no-kofi]")) el.hidden = !!SITE.kofi;

-// Best guess at the visitor's platform, for the hero button and the download cards.
+// Browser hints identify an OS, not a reliable CPU architecture. Always show
+// the install instructions and all choices before starting a download.
 function detectPlatform() {
  const ua = navigator.userAgent;
  const hint = navigator.userAgentData?.platform || navigator.platform || "";
-  if (/iPhone|iPad|iPod/.test(ua) || (/Mac/.test(hint) && navigator.maxTouchPoints > 1)) return "ios";
-  if (/Android/.test(ua)) return null;
+  if (/iPhone|iPad|iPod|Android/.test(ua) || (/Mac/.test(hint) && navigator.maxTouchPoints > 1)) return null;
  if (/Mac/.test(hint) || /Macintosh/.test(ua)) return "mac";
  if (/Win/.test(hint) || /Windows/.test(ua)) return "windows";
-  if (/Linux/.test(hint) || /Linux/.test(ua)) return /aarch64|arm64/i.test(ua + hint) ? "linux-arm" : "linux";
+  if (/Linux/.test(hint) || /Linux/.test(ua)) return "linux";
  return null;
 }

-const PLATFORMS = {
-  mac: { name: "macOS", file: "Frame-Control-mac-arm64.dmg" },
-  windows: { name: "Windows", file: "Frame-Control-Setup-x64.exe" },
-  linux: { name: "Linux", file: "Frame-Control-linux-x86_64.AppImage" },
-  "linux-arm": { name: "Linux (arm64)", file: "Frame-Control-linux-arm64.AppImage" },
-};
-
 const platform = detectPlatform();
 const hero = document.getElementById("hero-download");
-if (hero && PLATFORMS[platform]) {
-  hero.href = RELEASE + PLATFORMS[platform].file;
-  hero.querySelector("[data-label]").textContent = `Download for ${PLATFORMS[platform].name}`;
+if (hero && platform) {
+  hero.href = `#download-${platform}`;
+  const name = { mac: "macOS", windows: "Windows", linux: "Linux" }[platform];
+  hero.querySelector("[data-label]").textContent = `Choose a ${name} download`;
 }
-const card = platform && document.querySelector(`.dl[data-os="${platform.replace("-arm", "")}"]`);
+const card = platform && document.querySelector(`.dl[data-os="${platform}"]`);
 if (card) {
  card.classList.add("mine");
  card.querySelector(".tag").hidden = false;
 }

+// Keep linked opening instructions visible, including direct FAQ deep links.
+function revealInstructions() {
+  const target = document.getElementById(location.hash.slice(1));
+  if (target?.tagName === "DETAILS") target.open = true;
+}
+window.addEventListener("hashchange", revealInstructions);
+revealInstructions();
+
 // Latest version number, so the page never goes stale. Fails quietly.
 const versionEls = document.querySelectorAll("[data-version]");
 if (versionEls.length) {
@@ -0,0 +1,59 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { readFileSync } from 'node:fs';
+import { runInNewContext } from 'node:vm';
+
+const script = readFileSync(new URL('../public/js/site.js', import.meta.url), 'utf8');
+const html = readFileSync(new URL('../public/index.html', import.meta.url), 'utf8');
+
+function visit(navigator, hash = '') {
+  const label = { textContent: 'Choose your computer’s download' };
+  const hero = { href: '#download', querySelector: () => label };
+  const cards = Object.fromEntries(['mac', 'windows', 'linux'].map(os => [os, {
+    classes: [], classList: { add(name) { cards[os].classes.push(name); } },
+    tag: { hidden: true }, querySelector() { return this.tag; },
+  }]));
+  const details = { tagName: 'DETAILS', open: false };
+  const listeners = {};
+  const context = {
+    navigator, location: { hash }, window: { addEventListener: (name, fn) => { listeners[name] = fn; } },
+    document: {
+      querySelectorAll: () => [],
+      getElementById: id => id === 'hero-download' ? hero : id === 'mac-opening' ? details : null,
+      querySelector: selector => cards[selector.match(/data-os="([^"]+)"/)[1]],
+    },
+  };
+  runInNewContext(script, context);
+  return { hero, cards, details, listeners, context };
+}
+
+for (const [name, navigator, expected] of [
+  ['Intel Mac', { platform: 'MacIntel', userAgent: 'Macintosh' }, 'mac'],
+  ['Apple Silicon browser with Intel hint', { platform: 'MacIntel', userAgent: 'Macintosh', userAgentData: { platform: 'macOS' } }, 'mac'],
+  ['Windows', { platform: 'Win32', userAgent: 'Windows NT 10.0' }, 'windows'],
+  ['Linux x64', { platform: 'Linux x86_64', userAgent: 'Linux x86_64' }, 'linux'],
+  ['Linux ARM', { platform: 'Linux aarch64', userAgent: 'Linux aarch64' }, 'linux'],
+  ['iPhone', { platform: 'iPhone', userAgent: 'iPhone' }, null],
+  ['iPad desktop mode', { platform: 'MacIntel', userAgent: 'Macintosh', maxTouchPoints: 5 }, null],
+  ['Android', { platform: 'Linux armv8l', userAgent: 'Linux Android' }, null],
+  ['unknown', { userAgent: '' }, null],
+]) {
+  test(`${name} opens choices instead of guessing an installer architecture`, () => {
+    const { hero, cards } = visit(navigator);
+    assert.equal(hero.href, expected ? `#download-${expected}` : '#download');
+    assert.ok(html.includes(`id="${hero.href.slice(1)}"`));
+    assert.deepEqual(Object.keys(cards).filter(os => !cards[os].tag.hidden), expected ? [expected] : []);
+  });
+}
+
+test('opening help expands for direct and in-page links; unknown fragments are safe', () => {
+  const result = visit({ userAgent: '' }, '#mac-opening');
+  assert.equal(result.details.open, true);
+  result.details.open = false;
+  result.context.location.hash = '#unknown';
+  result.listeners.hashchange();
+  assert.equal(result.details.open, false);
+  result.context.location.hash = '#mac-opening';
+  result.listeners.hashchange();
+  assert.equal(result.details.open, true);
+});
@@ -165,6 +165,50 @@ test('metrics use real fields, preserve zero, and distinguish unavailable values
  assert.equal(cc.metrics({battery:{percent:0,status:'Discharging'}}).battery,'0%');
  assert.match(cc.metrics({thermalAlerts:[{zone:'battery',tempC:45,limitC:44}]}).thermal,/battery 45 °C ≥ 44 °C/);
 });
+test('battery health distinguishes charging states and optional sensors', () => {
+  for (const status of [null, 'Unknown', 'Unexpected']) {
+    const m = cc.metrics({battery:{percent:100,status,timeToEmpty:3600}});
+    assert.equal(m.batteryDetail,'Charging state unavailable');
+    assert.equal(m.estimate,'Unavailable');
+  }
+  assert.equal(cc.metrics({battery:{status:'Not charging'}}).batteryDetail,'Not charging');
+  assert.equal(cc.metrics({battery:{status:'Full'}}).batteryDetail,'Fully charged');
+  assert.equal(cc.metrics({battery:{status:'Charging',timeToFull:3600}}).estimate,'1 h 0 min to full');
+  assert.equal(cc.metrics({battery:{status:'Discharging',timeToEmpty:600}}).estimate,'10 min remaining');
+  const m = cc.metrics({battery:{cycleCount:0,fullMah:4500,designMah:5000,capacityHealthPercent:90,
+    source:'/sys/class/power_supply/max1720x_bat_7-36',health:'Unknown',tempC:0}});
+  assert.equal(m.cycles,'0'); assert.equal(m.capacityHealth,'90%');
+  assert.equal(m.fullCapacity,'4,500 mAh'); assert.equal(m.batteryTemp,'0 °C');
+  assert.equal(m.batteryHealth,'Unavailable'); assert.match(m.batterySource,/max1720x/);
+  for (const key of ['cycles','fullCapacity','designCapacity','capacityHealth','batterySource','batteryHealth','batteryTemp'])
+    assert.equal(cc.metrics(null)[key],'Unavailable');
+});
+test('battery chip preserves unknown status and does not infer Full at 100%', () => {
+  const f=fixture();
+  const start=pageSource.indexOf('function battery(b, power)');
+  const end=pageSource.indexOf('// hidePopover', start);
+  const context={$:f.element,dur:String}; vm.createContext(context);
+  vm.runInContext(pageSource.slice(start,end),context);
+  context.battery({percent:100,status:'Unknown'},{watts:20});
+  assert.equal(f.element('battState').textContent,'Charging state unavailable');
+  context.battery({percent:50,status:'Not charging'},null);
+  assert.equal(f.element('battState').textContent,'Not charging');
+  context.battery({percent:50,status:'Charging',watts:2,tempC:0},null);
+  assert.match(f.element('battState').textContent,/Charging/);
+  assert.match(f.element('battDetail').textContent,/battery 0°C/);
+  context.battery(null,null);
+  assert.equal(f.element('battState').textContent,'Battery unknown');
+});
+test('new health readings clear after a failed status read', () => {
+  const f=mounted();
+  f.ui.status({...sample(),battery:{...sample().battery,cycleCount:42,capacityHealthPercent:92,
+    fullMah:4600,designMah:5000,source:'/sys/class/power_supply/max1720x_bat_7-36'}});
+  assert.equal(f.element('metric-capacityHealth').textContent,'92%');
+  f.ui.unavailable(Error('Read failed'));
+  for (const key of ['cycles','fullCapacity','designCapacity','capacityHealth','batterySource'])
+    assert.equal(f.element('metric-'+key).textContent,'Unavailable');
+  f.ui.destroy();
+});
 test('audio controller validates before any API call and rejects offline or expired readings', async () => {
  let context={online:true,fresh:true,sample:sample(),device:'frame-a',generation:1},calls=[];
  const controller=cc.createController({api:async(...args)=>{calls.push(args);return {};},getContext:()=>context});
@@ -0,0 +1,59 @@
+"""Real doctor/SSH against fake-Frame faults; never a real headset."""
+import subprocess
+import sys
+import tempfile
+from pathlib import Path
+
+import harness
+from harness import ROOT, ctl
+
+harness.require()
+
+
+class Doctor(harness.FrameTestCase):
+    def doctor(self, *args):
+        return subprocess.run([sys.executable, str(ROOT / 'scripts/frame_doctor.py'),
+                               '--lan', harness.FAKE_HOST, '--usb', harness.FAKE_HOST, *args],
+                              capture_output=True, text=True, timeout=120)
+
+    def test_disk_full(self):
+        before = self.doctor()
+        self.assertNotIn('BROKEN 4. Steam and storage', before.stdout)
+        ctl('disk-full', 'on')
+        r = self.doctor()
+        self.assertEqual(r.returncode, 1, r.stdout + r.stderr)
+        self.assertIn('BROKEN 4. Steam and storage: Less than 16 MiB free', r.stdout)
+
+    def test_unreachable_asleep(self):
+        ctl('sleep', 'on')
+        r = self.doctor()
+        self.assertEqual(r.returncode, 2, r.stdout + r.stderr)
+        self.assertIn('No authenticated SSH path', r.stdout)
+
+    def test_no_ssh_and_no_devkit(self):
+        ctl('sshd', 'off')
+        ctl('devkit-service', 'off')
+        r = self.doctor()
+        self.assertEqual(r.returncode, 2, r.stdout + r.stderr)
+        self.assertIn('Devkit port did not respond', r.stdout)
+
+    def test_no_keys_but_devkit_available(self):
+        ctl('keys', 'none')
+        r = self.doctor()
+        self.assertEqual(r.returncode, 2, r.stdout + r.stderr)
+        self.assertIn('SSH key rejected', r.stdout)
+        self.assertIn('no pairing request was sent', r.stdout)
+
+    def test_plan_and_before_after_storage(self):
+        with tempfile.TemporaryDirectory() as folder:
+            baseline = str(Path(folder) / 'before.json')
+            ctl('disk-full', 'on')
+            before = self.doctor('--plan', '--save-report', baseline)
+            self.assertEqual(before.returncode, 1, before.stdout + before.stderr)
+            self.assertIn('use Steam storage management', before.stdout)
+            ctl('disk-full', 'off')  # fake fault control, not a doctor repair
+            after = self.doctor('--plan', '--compare-before', baseline)
+            self.assertEqual(after.returncode, 1, after.stdout + after.stderr)
+            self.assertIn('Steam and storage: BROKEN ->', after.stdout)
+            self.assertNotIn('Steam and storage: BROKEN -> BROKEN', after.stdout)
+            self.assertIn('no automatic repair is available', after.stdout)
@@ -0,0 +1,55 @@
+"""Backup and recovery kit through the server against the fake Frame: a Proton game's save
+goes to this computer and back, Steam's sign-in token never leaves the headset."""
+import json
+import shutil
+import tarfile
+import unittest
+from pathlib import Path
+
+import harness
+from harness import api, finished, ok, ssh
+
+harness.require()
+
+SAVE = '.local/share/Steam/steamapps/compatdata/620980/pfx/drive_c/users/steamuser/AppData/LocalLow/Beat Games/Beat Saber/PlayerData.dat'
+
+
+class Backup(harness.FrameTestCase):
+    def test_saves_round_trip_and_secrets_stay(self):
+        ssh(f"mkdir -p ~/'{Path(SAVE).parent}' && printf 'level 7' > ~/'{SAVE}' && "
+            "mkdir -p ~/.steam && printf SECRET > ~/.steam/steam.token")
+        job = finished(ok('POST', '/api/backup', {'action': 'backup', 'kinds': ['saves', 'settings']}), 120)
+        self.assertIsNone(job['error'], job)
+        folder = Path(job['result']['path'])
+        self.addCleanup(shutil.rmtree, str(folder), True)
+        manifest = json.loads((folder / 'manifest.json').read_text())
+        self.assertEqual(manifest['headset']['build'], '20260922.6101926')
+        saves = next(p for p in manifest['parts'] if p['id'] == 'saves:620980')
+        self.assertEqual(saves['label'], 'Beat Saber saves')
+        self.assertEqual([f['path'] for f in saves['files']], [SAVE])
+        for part in manifest['parts']:
+            with tarfile.open(str(folder / part['archive'])) as tar:
+                self.assertFalse([m.name for m in tar if 'steam.token' in m.name])
+        self.assertEqual(ssh('cat ~/.steam/steam.token'), 'SECRET')  # read-only on the headset
+
+        ssh(f"rm ~/'{SAVE}'")
+        name = folder.name
+        plan = {p['id']: p for p in ok('POST', '/api/backup', {'action': 'plan', 'name': name})['parts']}
+        self.assertEqual((plan['saves:620980']['status'], plan['saves:620980']['new']), ('ok', 1))
+        status, out, _ = api('POST', '/api/backup', {'action': 'restore', 'name': name, 'parts': ['saves:620980']})
+        self.assertEqual(status, 400, out)  # not confirmed
+        job = finished(ok('POST', '/api/backup', {'action': 'restore', 'name': name, 'parts': ['saves:620980'],
+                                                  'confirm': True}), 120)
+        self.assertIsNone(job['error'], job)
+        self.assertEqual(ssh(f"cat ~/'{SAVE}'"), 'level 7')
+
+    def test_bad_names_and_session(self):
+        status, out, _ = api('POST', '/api/backup', {'action': 'plan', 'name': '../../etc'})
+        self.assertEqual(status, 400, out)
+        state = ok('POST', '/api/backup', {'action': 'session'})
+        self.assertIn(state['mode'], ('game', 'desktop', 'unknown'))
+        self.assertIsNone(state['selector'])  # the fake has no session switch command
+
+
+if __name__ == '__main__':
+    unittest.main()
@@ -0,0 +1,17 @@
+#!/usr/bin/env python3
+"""Doctor's read-only systemd queries in a container without a user manager.
+
+Stable NRestarts=0 and inactive keep-awake are harness assumptions, not observed
+device behavior. Real Frame query forms come from the historical doctor runbook
+(2026-09-28, BUILD_ID 20260925.6191901). No service control is emulated here.
+"""
+import sys
+
+args = sys.argv[1:]
+if args in (['--user', 'show', 'steam.service', '-p', 'NRestarts', '--value'],
+            ['--user', 'show', 'steamvr.service', '-p', 'NRestarts', '--value']):
+    print('0')
+elif args == ['--user', 'show', 'fc-keep-awake.service', '-p', 'ActiveState', '--value']:
+    print('inactive')
+else:
+    sys.exit(1)
@@ -3,8 +3,8 @@
 tests/test_release_workflow.py. Serves the releases in $FAKEGH_RELEASES (a JSON list,
 drafts included) and the tags in $FAKEGH_TAGS (space-separated); an upload's body is
 written to $FAKEGH_UPLOAD. Every call is appended to $FAKEGH_LOG as a JSON line.
-Anything else fails, so the script under test can't fall back to `gh release ...`
-(GraphQL) unnoticed. POST .../releases (release.yml's draft step) answers as release
+Anything else fails; `gh release upload` works only when a release-workflow test
+explicitly sets FAKEGH_ALLOW_RELEASE_UPLOAD=1. POST .../releases (release.yml's draft step) answers as release
 $FAKEGH_NEW_ID (default 9001) without adding it to the listing, like GitHub's list
 lagging a fresh draft. With jq installed, --jq filters a response the way gh does
 (raw strings, compact JSON)."""
@@ -17,6 +17,13 @@ import sys
 args = sys.argv[1:]
 with open(os.environ["FAKEGH_LOG"], "a") as f:
    f.write(json.dumps(args) + "\n")
+if args[:2] == ["release", "upload"] and os.environ.get("FAKEGH_ALLOW_RELEASE_UPLOAD") == "1":
+    releases = json.load(open(os.environ["FAKEGH_RELEASES"]))
+    if os.environ.get("FAKEGH_UPLOAD_ERROR"):
+        sys.exit(os.environ["FAKEGH_UPLOAD_ERROR"])
+    if not any(r.get("tag_name") == args[2] for r in releases):
+        sys.exit("release not found")
+    sys.exit(0)
 if not args or args[0] != "api":
    sys.exit("fakegh: only `gh api` is supported: %r" % args)

@@ -80,6 +87,12 @@ elif method == "PATCH" and endpoint.startswith(repo + "releases/"):
    rid = endpoint[len(repo + "releases/"):]
    if not rid.isdigit():  # what GitHub said to v0.4.2's PATCH of releases/ (an empty id)
        sys.exit("gh: Not Found (HTTP 404)")
+    if os.environ.get("FAKEGH_ALLOW_RELEASE_UPLOAD") == "1":
+        for item in releases:
+            if str(item["id"]) == rid:
+                item.update(fields)
+        with open(os.environ["FAKEGH_RELEASES"], "w") as f:
+            json.dump(releases, f)
    page = "https://github.com/saphid/frame-control/releases/tag/%s" % fields.get("tag_name")
    answer({"id": int(rid), "tag_name": fields.get("tag_name"), "html_url": page},
           "published %s at %s" % (fields.get("tag_name"), page))
@@ -13,13 +13,13 @@ function grab(name) {
  if (start < 0) fail(`no top-level ${name} in index.html`);
  let depth = 0;
  for (let i = start; i < lines.length; i++) {
-    for (const c of lines[i]) depth += c === "{" ? 1 : c === "}" ? -1 : 0;
+    for (const c of lines[i]) depth += c === "{" || c === "[" ? 1 : c === "}" || c === "]" ? -1 : 0;
    if (depth <= 0) return lines.slice(start, i + 1).join("\n") + "\n";
  }
  fail(`unbalanced ${name}`);
 }
 const names = ["esc", "storeName", "storeHue", "storeInitial", "storeText", "storeOpenSource", "sourcePage", "storeImage",
-               "GLYPH_VR", "GLYPH_APP", "RUNS", "storeRuns", "storeKind", "storeArt", "storeIcon", "sourceMark", "currentOffer", "detailBadges", "renderAppDetail", "renderAppDetailBody",
+               "GLYPH_VR", "GLYPH_APP", "RUNS", "storeRuns", "storeReportDetails", "storePickEligible", "STORE_CATS", "storeCat", "storeCard", "storeRow", "storeKind", "storeArt", "storeIcon", "sourceMark", "currentOffer", "detailBadges", "renderAppDetail", "renderAppDetailBody",
               "updateInstall", "openStoreApp", "loadOfferDetails", "installStoreApp"];
 const code = names.map(grab).join("");

@@ -34,7 +34,7 @@ function page(api = async () => ({}), androidApps = []) {
  const document = { activeElement: null, querySelector: () => null };
  const console = { error() {} };
  const calls = [];
-  const fns = new Function("$", "sourceState", "document", "console", "api", "androidApps", "runJob", "loadAndroid", "act", "window", "devGen", code + "; return { renderAppDetail, openStoreApp };")(
+  const fns = new Function("$", "sourceState", "document", "console", "api", "androidApps", "runJob", "loadAndroid", "act", "window", "devGen", code + "; return { renderAppDetail, openStoreApp, storeCard, storeRow, storePickEligible };")(
    $, sourceState, document, console, (...a) => { calls.push(a); return api(...a); }, androidApps,
    async (title, key, work) => work(), () => {}, async (title, work) => work(),
    { open() { fail("an in-app installation opened an external page"); } }, 0);
@@ -114,4 +114,31 @@ for (const [job, expected] of [[null, 1], [{ done: false }, 0],
  if (installs.some(([, body]) => body.source !== offer.source || body.id !== offer.id)) fail("installed a different offer");
  if (p.calls.some(([path]) => path === "/api/android")) fail("hero Install launched an already installed app");
 }
+
+// Report warnings appear on real cards, shelves and details; they are advisory.
+for (const [kind, tone, label] of [['no', 'warning', 'Reported not working'], ['maybe', 'issues', 'Reported issues']]) {
+  const p = page();
+  const o = {...offer, verdict: {tone, label: label+' on the Frame'},
+    compat_report: {verdict: kind, lines: ['Reported <unsafe> notes', '2 reports, 0 working']}};
+  const app = {name: o.name, offers: [o]};
+  p.sourceState.apps = [app];
+  p.sourceState.detail = {app, choice: 0};
+  const card = p.storeCard(app), shelf = p.storeRow('VR picks', 'Synthetic fixtures', [app]);
+  if (!card.includes('>'+label+'</span>') || !shelf.includes('>'+label+'</span>')) fail('warning missing on card or shelf');
+  if (!p.renderAppDetail()) fail('report detail did not render');
+  const html = p.els.detailBody.innerHTML;
+  if (!html.includes('Saved compatibility reports') || !html.includes('Reported &lt;unsafe&gt; notes')) fail('report evidence missing or unescaped');
+  if (html.includes('Reported <unsafe>')) fail('report notes injected HTML');
+  if (p.els.detailInstall.disabled || p.els.detailInstall.textContent !== 'Install on the Frame') fail('report disabled installation');
+  if (kind==='no' && p.storePickEligible(o)) fail('broken report is eligible for featured/VR picks');
+  // A positive report cannot remove a hard blocker. Negative evidence stays visible too.
+  for (const reportKind of [kind, 'works']) {
+    const blocked = {...o, verdict: {tone: 'blocked', label: 'No arm64 build'}, compat_report: {...o.compat_report, verdict: reportKind}};
+    app.offers = [blocked];
+    if (!p.renderAppDetail() || !p.els.detailInstall.disabled) fail('report overrode hard blocker');
+    if (p.storePickEligible(blocked)) fail('blocked app eligible for picks');
+    if (reportKind!=='works' && !p.storeCard(app).includes('>'+label+'</span>')) fail('hard blocker hid report warning');
+  }
+}
+
 console.log("ok");
@@ -0,0 +1,77 @@
+const {test}=require('node:test');
+const assert=require('node:assert/strict');
+const {workspaceFixture,html}=require('./workspace_fixture.cjs');
+function fixture() {
+  const f=workspaceFixture();
+  Object.assign(f.context, {clearTimeout(){},setTimeout(){},UI_KEY:'1',encodeURIComponent});
+  const formats=['html','json','csv'].map(format=>Object.assign(f.el('download-'+format),{dataset:{powerFormat:format}}));
+  const query=f.context.document.querySelectorAll;
+  f.context.document.querySelectorAll=s=>s==='[data-power-format]'?formats:query(s);
+  f.formats=formats;
+  f.run(html.slice(html.indexOf('// ---- Read-only power observation ----'),html.indexOf('// ---- Read-only game storage ----')));
+  return f;
+}
+const state={id:'abc',headset:{alias:'old-frame'},requested:12,received:3,running:true,stopped:null};
+test('Tools navigation loads the report and renders accessible progress',async()=>{
+  const f=fixture();let calls=0;f.context.api=async()=>{calls++;return state;};
+  f.navigate('#powerReport');await new Promise(setImmediate);
+  assert.equal(f.activePage,'tools');assert.equal(f.el('powerReport').hidden,false);
+  assert.equal(f.el('powerReport').parentNode,f.el('toolWorkspace'));
+  assert.equal(calls,1);assert.equal(f.el('powerProgress').value,3);
+  assert.equal(f.el('powerStart').disabled,true);assert.equal(f.el('powerStop').disabled,false);
+  assert.match(f.el('powerStatus').textContent,/Headset: old-frame.*3 of 12.*Observing/);
+});
+test('incomplete result preserves original identity and start becomes available',()=>{
+  const f=fixture();f.context.sample={...state,running:false,stopped:'Headset switched; samples retained'};
+  f.run('renderPower(sample)');
+  assert.match(f.el('powerStatus').textContent,/old-frame.*Incomplete: Headset switched/);
+  assert.equal(f.el('powerStart').disabled,false);assert.equal(f.el('powerStop').disabled,true);
+});
+test('stop submits observation identity and keeps progress visible',async()=>{
+  const f=fixture(),calls=[];f.context.sample=state;f.run('renderPower(sample)');
+  f.context.api=async(path,body)=>{calls.push([path,body]);return {...state,running:false,stopped:'Stopped by user'};};
+  await f.el('powerStop').onclick();
+  assert.equal(calls[0][0],'/api/power');assert.equal(calls[0][1].action,'stop');assert.equal(calls[0][1].id,'abc');
+  assert.equal(f.el('powerProgress').value,3);assert.match(f.el('powerStatus').textContent,/Incomplete/);
+});
+test('old polls cannot overwrite newer report and retry explains retained samples',async()=>{
+  const f=fixture(),pending=[];f.context.api=()=>new Promise((resolve,reject)=>pending.push({resolve,reject}));
+  const first=f.run('loadPower()'),second=f.run('loadPower()');
+  pending[1].resolve({...state,running:false,stopped:'Disconnected'});await second;
+  const current=f.el('powerStatus').textContent;pending[0].resolve(state);await first;
+  assert.equal(f.el('powerStatus').textContent,current);
+  const next=f.run('loadPower()');pending[2].reject(new Error('Offline'));await next;
+  assert.match(f.el('powerStatus').textContent,/Offline.*Received samples remain/);
+});
+test('start failure remains actionable and does not imply success',async()=>{
+  const f=fixture();f.context.api=async()=>{throw new Error('Smoke session active');};
+  await f.el('powerStart').onclick();assert.match(f.el('powerStatus').textContent,/Smoke session/);
+  assert.equal(f.el('powerStart').disabled,false);
+});
+test('download captures observation ID, fetches an authenticated blob and names the file',async()=>{
+  const f=fixture(),requests=[],saved=[];
+  f.context.sample={...state,running:false,stopped:'Disconnected'};f.run('renderPower(sample)');
+  f.context.fetch=async(url,opts)=>{requests.push([url,opts]);return {ok:true,blob:async()=>({report:true})};};
+  f.context.URL={createObjectURL:()=> 'blob:report',revokeObjectURL(){}};
+  f.context.document.createElement=()=>({click(){saved.push({href:this.href,name:this.download});}});
+  await f.formats[0].onclick();
+  assert.equal(requests[0][0],'/api/power/report?id=abc&format=html');
+  assert.equal(requests[0][1].headers['X-Frame-UI'],'1');
+  assert.deepEqual(saved,[{href:'blob:report',name:'frame-power-abc.html'}]);
+  assert.match(f.el('powerSaveStatus').textContent,/Download requested/);
+  f.context.fetch=async()=>({ok:false,json:async()=>({error:'Report replaced'})});
+  await f.formats[0].onclick();
+  assert.match(f.el('powerSaveStatus').textContent,/Download failed: Report replaced/);
+  assert.equal(f.formats[0].disabled,false);
+});
+test('packaging guard requires shared modules and detects missing resources',()=>{
+  const fs=require('node:fs'),os=require('node:os'),path=require('node:path');
+  const guard=require('../app/build/check-resources');const tmp=fs.mkdtempSync(path.join(os.tmpdir(),'power-resources-'));
+  try {
+    for(const rel of guard.REQUIRED) {const file=path.join(tmp,rel);fs.mkdirSync(path.dirname(file),{recursive:true});fs.writeFileSync(file,'test');}
+    assert.deepEqual(guard.missing(tmp),[]);
+    for(const rel of ['ui/frame_power.py','ui/frame_status.py','scripts/frame_power_sample.py','scripts/frame_power_report.py']) {
+      assert.ok(guard.REQUIRED.includes(rel));fs.unlinkSync(path.join(tmp,rel));assert.ok(guard.missing(tmp).includes(rel));
+    }
+  } finally {fs.rmSync(tmp,{recursive:true,force:true});}
+});
@@ -22,6 +22,7 @@ os.environ["FRAME_CONTROL_DATA_DIR"] = _dir
 os.environ["FRAME_CONTROL_TELEMETRY"] = "0"
 # A maintainer's machine holds the database key; send anything that slips through nowhere.
 os.environ["FRAME_COMPAT_DB_URL"] = "http://127.0.0.1:9"
+os.environ["FRAME_COMPAT_SEARCH_REPORTS"] = "0"  # server subprocesses never start real report readers

 # A throwaway home, so Path.home() / "~" land here: ~/.ssh (config, host-key pins,
 # its lock file) and the other per-user folders some modules use. A server started
@@ -13,11 +13,12 @@ BUILD_ID in tests/smoke/results/<time>-<BUILD_ID>.json (git-ignored):
  (someone has to open Settings > Developer > Pair new host and approve it in
  the headset), checked, and taken out of authorized_keys again.

-Everything it installs is removed again, also when a step fails: the titles
-(named fc_smoke_*, and leftovers of an interrupted run first), their Steam
+Everything it installs is removed again, also when a step fails: the reserved
+fc_smoke_{arm64,x86_64,exe} titles (and legacy leftovers first), their Steam
 shortcuts, the paired key, and ~/devkit-utils if it wasn't there before (if it
 was, it stays, synced to this checkout as Frame Control always does). A
-cleanup that fails is a failed step.
+cleanup that fails is a failed step. Test-owned processes are stopped and
+rechecked around deletion; shared Proton services are never stopped by name.

 Usage: python3 tests/smoke/frame_smoke.py [--pair]     (or scripts/frame-smoke.sh)
 Env:   FRAME_ALIAS (default frame), FRAME_SMOKE_RESULTS (default tests/smoke/results)
@@ -45,11 +46,17 @@ import frame_android  # noqa: E402
 import frame_connect  # noqa: E402
 import frame_titles  # noqa: E402
 import tiny_programs  # noqa: E402
+import stop_processes  # noqa: E402

 RESULTS = Path(os.environ.get('FRAME_SMOKE_RESULTS') or HERE / 'results')
 PREFIX = 'fc_smoke_'
-# Earlier runs named titles fc-smoke*, which Steam refused to register but left on disk.
-OLD_PREFIX = 'fc-smoke'
+
+
+def stop_titles(ids):
+    """Run the same bounded, PID-safe helper used by the local process tests."""
+    return json.loads(frame_android.ssh(
+        'python3 - ' + ' '.join(shlex.quote(gid) for gid in sorted(ids)),
+        input=(HERE / 'stop_processes.py').read_text(), timeout=20))


 class Smoke:
@@ -172,14 +179,17 @@ def title_cycle(smoke, kind, folder):
        return detail

    def remove():
+        stopped = stop_titles({gid})
        frame_titles.remove(gid)
+        # A wrapper could have launched a child just as deletion completed.
+        after = stop_titles({gid})
        left = ssh(f'ls -d ~/devkit-game/{gid} ~/devkit-game/{gid}-*.json 2>/dev/null || true').strip()
        if left:
            raise AssertionError(f'left behind: {left}')
        if gid in {t['id'] for t in frame_titles.list_titles()}:
            raise AssertionError(f'{gid} is still listed')
        smoke.installed.discard(gid)
-        return {'removed': gid}
+        return {'removed': gid, 'process_cleanup': [stopped, after]}

    if smoke.step(f'{kind}: install', install)['ok']:
        smoke.step(f'{kind}: launch', launch)
@@ -187,15 +197,21 @@ def title_cycle(smoke, kind, folder):


 def cleanup(smoke):
-    """Remove this run's titles and any fc_smoke_* an interrupted run left: the folder,
-    its json files, and (through steamos-delete) Steam's shortcut. Raises if anything stays."""
+    """Stop reserved smoke processes and remove their titles and shortcuts.
+
+    Legacy fc-smoke-* IDs are included; arbitrary similarly named titles are
+    never removed. Raises if any owned process, file or shortcut stays.
+    """
    problems = []
    try:
-        ids = {t['id'] for t in frame_titles.list_titles() if t['id'].startswith((PREFIX, OLD_PREFIX))}
+        ids = {t['id'] for t in frame_titles.list_titles() if t['id'] in stop_processes.IDS}
    except frame_android.FrameError as e:
        ids = set()
        problems.append(f'could not list titles: {e}')
    ids |= smoke.installed
+    # Scan every reserved ID, even when a prior run removed its folder and
+    # shortcut but left Proton running. Stop before removing any more files.
+    stopped = stop_titles(stop_processes.IDS)
    gone = set()
    for gid in sorted(ids):
        try:
@@ -226,9 +242,10 @@ def cleanup(smoke):
                    smoke.installed.discard(gid)
        except (frame_android.FrameError, AssertionError) as e:
            problems.append(f"syncing Steam's shortcuts: {e}")
+    after = stop_titles(stop_processes.IDS)
    if problems:
        raise AssertionError('; '.join(problems))
-    return {'removed': sorted(ids)}
+    return {'removed': sorted(ids), 'process_cleanup': [stopped, after]}


 # Runs on the Frame: drop the lines holding one key from authorized_keys, writing a
@@ -307,15 +324,17 @@ def main():
    # Frame Control copies Valve's devkit tools to ~/devkit-utils on the first install
    # (as Valve's client does). If they weren't there before, they go again at the end.
    had_utils = ssh('test -d ~/devkit-utils && echo yes || true').strip() == 'yes'
-    smoke.step('cleanup: leftovers from earlier runs', cleanup, smoke)
+    ready = smoke.step('cleanup: leftovers from earlier runs', cleanup, smoke)['ok']
    folder = tempfile.mkdtemp(prefix='frame-smoke-')
    try:
-        smoke.step('devkit service: properties.json', properties)
-        smoke.step('status', status, build)
-        for kind in ('arm64', 'x86_64', 'exe'):
-            title_cycle(smoke, kind, folder)
-        if args.pair:
-            smoke.step('devkit pairing (throwaway key)', pair, folder)
+        # Do not overwrite a leftover title when safe process cleanup failed.
+        if ready:
+            smoke.step('devkit service: properties.json', properties)
+            smoke.step('status', status, build)
+            for kind in ('arm64', 'x86_64', 'exe'):
+                title_cycle(smoke, kind, folder)
+            if args.pair:
+                smoke.step('devkit pairing (throwaway key)', pair, folder)
    finally:
        smoke.step('cleanup: everything this run installed', cleanup, smoke)
        if not had_utils:
@@ -0,0 +1,91 @@
+"""Linux-only smoke cleanup helper, sent over SSH before deleting test files.
+
+Only exact, reserved smoke title directories establish ownership. Never signal
+by process name, process group, Steam app id, or a shared Wine/Proton prefix.
+"""
+import json
+import os
+from pathlib import Path
+import signal
+import sys
+import time
+
+IDS = frozenset(prefix + kind for prefix in ('fc_smoke_', 'fc-smoke-')
+                for kind in ('arm64', 'x86_64', 'exe'))
+
+
+def owned(pid, roots):
+    """Require our uid and an exact cwd/exe or individual absolute argv path.
+
+    /proc retains a deleted cwd/exe with ' (deleted)' appended. This also lets
+    the final sweep catch an older run whose title was already removed.
+    """
+    proc = Path('/proc') / str(pid)
+    try:
+        if pid == os.getpid() or proc.stat().st_uid != os.getuid():
+            return False
+        state = (proc / 'stat').read_text().rsplit(')', 1)[1].split()[0]
+        if state == 'Z':
+            return False
+        paths = []
+        for key in ('cwd', 'exe'):
+            try:
+                paths.append(os.readlink(proc / key).removesuffix(' (deleted)'))
+            except (FileNotFoundError, PermissionError):
+                pass
+        try:
+            paths += os.fsdecode((proc / 'cmdline').read_bytes()).split('\0')
+        except PermissionError:
+            pass
+        return any(path == root or path.startswith(root + '/')
+                   for path in paths for root in roots)
+    except (FileNotFoundError, ProcessLookupError, PermissionError):
+        return False
+
+
+def candidates(roots):
+    return sorted(int(p.name) for p in Path('/proc').iterdir()
+                  if p.name.isdigit() and owned(int(p.name), roots))
+
+
+def stop(ids, grace=3):
+    if not ids or not set(ids) <= IDS:
+        raise ValueError('only reserved smoke title IDs may be stopped')
+    if not hasattr(os, 'pidfd_open') or not hasattr(signal, 'pidfd_send_signal'):
+        raise RuntimeError('safe smoke cleanup requires Linux Python with pidfd support')
+    roots = [str(Path.home() / 'devkit-game' / gid) for gid in ids]
+    stopped = set()
+    for sig in (signal.SIGTERM, signal.SIGKILL):
+        # Re-scan while waiting: wrappers can spawn a child during shutdown.
+        deadline = time.monotonic() + grace
+        while True:
+            pids = candidates(roots)
+            if not pids:
+                return {'stopped_pids': sorted(stopped)}
+            for pid in pids:
+                try:
+                    fd = os.pidfd_open(pid)
+                except ProcessLookupError:
+                    continue
+                try:
+                    # Open first, then revalidate ownership. The handle cannot
+                    # signal an unrelated process if this numeric PID is reused.
+                    if owned(pid, roots):
+                        try:
+                            signal.pidfd_send_signal(fd, sig)
+                            stopped.add(pid)
+                        except ProcessLookupError:
+                            pass
+                finally:
+                    os.close(fd)
+            if time.monotonic() >= deadline:
+                break
+            time.sleep(0.1)
+    left = candidates(roots)
+    if left:
+        raise RuntimeError(f'smoke processes survived cleanup: {left}')
+    return {'stopped_pids': sorted(stopped)}
+
+
+if __name__ == '__main__':
+    print(json.dumps(stop(sys.argv[1:])))
@@ -0,0 +1,50 @@
+const {test}=require('node:test');
+const assert=require('node:assert/strict');
+const {workspaceFixture,html}=require('./workspace_fixture.cjs');
+function fixture() {
+  const f=workspaceFixture();
+  const start=html.indexOf('// ---- Read-only game storage ----');
+  f.run(html.slice(start,html.indexOf('// ---- Backup and recovery kit',start)));
+  const size=html.indexOf('function sizeText(');
+  f.run(html.slice(size,html.indexOf('const backupKinds',size)));
+  return f;
+}
+const sample={home:{state:'ok',total:1000,free:200,used:700},discovery:'permission-denied',libraries:[{
+  path:'<img onerror=alert(1)>',capacity:{state:'missing'},state:'partial',gameBytes:10,toolBytes:0,
+  recordedBytes:10,unknownSizes:1,issues:[{file:'bad.acf',state:'invalid-metadata'}],
+  apps:[{appid:'1',name:'<script>bad</script>',bytes:null,kind:'game'},{appid:'2',name:'Zero',bytes:0,kind:'game'}]}]};
+test('navigation reaches storage and refresh runs once per visit',()=>{
+  const f=fixture();let calls=0;f.context.loadStorage=()=>calls++;
+  f.navigate('#storage');assert.equal(f.activePage,'tools');assert.equal(f.el('storage').hidden,false);
+  assert.equal(f.el('storage').parentNode,f.el('toolWorkspace'));assert.equal(calls,1);
+});
+test('unknown, shared capacity, partial discovery and untrusted names remain explicit',()=>{
+  const f=fixture();f.context.sample=sample;const out=f.run('renderStorage(sample)');
+  assert.match(out,/Permission denied/);assert.match(out,/Missing or disconnected/);
+  assert.match(out,/Unknown/);assert.match(out,/0 bytes/);assert.match(out,/Partial inventory/);
+  assert.match(out,/must not be added/);assert.match(out,/Other usage is unmeasured/);
+  assert.match(out,/&lt;script&gt;/);assert.doesNotMatch(out,/<script>|<img/);
+});
+test('refresh clears old data, ignores earlier requests and shows offline failure',async()=>{
+  const f=fixture(),pending=[];
+  f.context.api=()=>new Promise((resolve,reject)=>pending.push({resolve,reject}));
+  f.el('storageResult').innerHTML='old data';
+  const first=f.run('loadStorage()'),second=f.run('loadStorage()');
+  assert.match(f.el('storageResult').textContent,/Reading/);
+  pending[1].resolve(sample);await second;
+  const current=f.el('storageResult').innerHTML;
+  pending[0].resolve({...sample,libraries:[]});await first;
+  assert.equal(f.el('storageResult').innerHTML,current);
+  const last=f.run('loadStorage()');pending[2].reject(new Error('Offline'));await last;
+  assert.match(f.el('storageResult').textContent,/Storage unavailable: Offline/);
+});
+test('a response or error from another headset cannot update the view',async()=>{
+  for(const fail of [false,true]) {
+    const f=fixture();let resolve,reject;
+    f.context.api=()=>new Promise((yes,no)=>{resolve=yes;reject=no;});
+    const request=f.run('loadStorage()');f.context.devGen++;
+    f.el('storageResult').textContent='New headset';
+    fail?reject(new Error('Old headset')):resolve(sample);await request;
+    assert.equal(f.el('storageResult').textContent,'New headset');assert.equal(f.el('storageResult').innerHTML,'');
+  }
+});
@@ -1,6 +1,11 @@
 """Local APK/OBB backups: inspect as a unit, verify the target, and finish setup."""
 import sandbox  # noqa: F401
 import io
+import json
+import shutil
+import stat
+import subprocess
+import zipfile
 from pathlib import Path
 import sys
 import tempfile
@@ -173,5 +178,152 @@ class StagingTests(unittest.TestCase):
                         {'android': False})


+class BundleTests(unittest.TestCase):
+    setUp = BackupTests.setUp
+    tearDown = StagingTests.tearDown
+    def bundle(self, entries=None, suffix='.xapk'):
+        path = self.root / ('backup' + suffix)
+        path.write_bytes(apk(entries if entries is not None else {
+            'backup/game.apk': self.apk.read_bytes(),
+            f'backup/Android/obb/{PKG}/{self.obb[0].name}': b'game data',
+            'backup/manifest.json': b'{"package_name":"untrusted.metadata"}',
+        }))
+        return path
+
+    def test_all_explicit_extensions_use_current_preview_and_cancel_cleanup(self):
+        for suffix in ('.xapk', '.apks', '.apkm'):
+            with self.subTest(suffix=suffix):
+                source = self.bundle(suffix=suffix)
+                with patch.object(backup.android, 'ssh') as ssh:
+                    read = server.android_backup({'action': 'inspect', 'paths': [str(source)]})
+                ssh.assert_not_called()
+                self.assertEqual(read['plan']['package'], PKG)
+                self.assertEqual(read['plan']['obb'][0]['name'], self.obb[0].name)
+                folders = list(server._android_backups[read['token']]['dirs'])
+                server.android_backup({'action': 'discard', 'token': read['token']})
+                self.assertTrue(all(not Path(p).exists() for p in folders))
+                self.assertTrue(source.exists())
+
+    def test_browser_upload_bundle_is_staged_and_removed_with_extraction(self):
+        source = self.bundle()
+        token = server.android_backup({'action': 'begin'})['token']
+        class Request:
+            headers = {'X-Filename': source.name, 'X-Mode': 'android-backup',
+                       'X-Android-Backup': token, 'Content-Length': str(source.stat().st_size)}
+            rfile = io.BytesIO(source.read_bytes())
+        server.Handler.upload(Request())
+        read = server.android_backup({'action': 'inspect', 'token': token})
+        self.assertEqual(read['plan']['package'], PKG)
+        self.assertEqual(len(server._android_backups[token]['dirs']), 2)
+        folders = list(server._android_backups[token]['dirs'])
+        server.android_backup({'action': 'discard', 'token': token})
+        self.assertTrue(all(not Path(p).exists() for p in folders))
+
+    def test_reject_layouts_before_any_headset_access_and_cleanup_failed_stage(self):
+        cases = [
+            ({'base.apk': self.apk.read_bytes(), 'split.apk': self.apk.read_bytes()}, 'Split APK'),
+            ({'base.apk': self.apk.read_bytes(), f'Android/data/{PKG}/save': b'private'}, 'restore'),
+            ({'base.apk': self.apk.read_bytes(), 'main.1.org.other.game.obb': b'wrong'}, 'does not belong'),
+            ({'base.apk': self.apk.read_bytes(), '../outside.obb': b'bad'}, 'unsafe'),
+            ({'base.apk': self.apk.read_bytes(), '/outside.obb': b'bad'}, 'unsafe'),
+            ({'base.apk': self.apk.read_bytes(), 'CON.apk': b'bad'}, 'unsafe'),
+            ({'base.apk': self.apk.read_bytes(), 'other.exe': b'bad'}, 'Unsupported'),
+            ({'base.apk': self.apk.read_bytes(), 'BASE.apk': b'bad'}, 'duplicate'),
+            ({'manifest.json': b'{}'}, 'standalone APK'),
+        ]
+        for entries, message in cases:
+            with self.subTest(message=message), patch.object(backup.android, 'ssh') as ssh:
+                source = self.bundle(entries)
+                with self.assertRaisesRegex(server.Failure, message):
+                    server.android_backup({'action': 'inspect', 'paths': [str(source)]})
+                self.assertFalse(server._android_backups)
+                ssh.assert_not_called()
+                self.assertTrue(source.exists())
+
+    def test_links_limits_bad_zip_and_mixed_selection_are_refused(self):
+        source = self.bundle({'base.apk': self.apk.read_bytes()})
+        link = zipfile.ZipInfo('link.apk')
+        link.external_attr = (stat.S_IFLNK | 0o777) << 16
+        with zipfile.ZipFile(source, 'a') as archive:
+            archive.writestr(link, 'somewhere')
+        destination = self.root / 'extract'
+        destination.mkdir()
+        with self.assertRaisesRegex(backup.android.FrameError, 'links'):
+            backup.unpack_bundle(source, destination)
+        self.assertEqual(list(destination.iterdir()), [])
+        source = self.bundle()
+        for limit, value, message in [('MAX_FILES', 1, 'too many'), ('MAX_BYTES', 1, 'size limit')]:
+            with patch.object(backup, limit, value):
+                with self.assertRaisesRegex(backup.android.FrameError, message):
+                    backup.unpack_bundle(source, destination)
+        with patch.object(backup.shutil, 'disk_usage', return_value=type('Disk', (), {'free': 0})()):
+            with self.assertRaisesRegex(backup.android.FrameError, 'staging space'):
+                backup.unpack_bundle(source, destination)
+        with self.assertRaisesRegex(server.Failure, 'one complete'):
+            server.android_backup({'action': 'inspect', 'paths': [str(source), str(self.apk)]})
+        source.write_bytes(b'not a zip')
+        with self.assertRaisesRegex(server.Failure, 'Could not read'):
+            server.android_backup({'action': 'inspect', 'paths': [str(source)]})
+        self.assertFalse(server._android_backups)
+
+    def test_manifest_split_and_required_split_are_refused(self):
+        from test_quest import axml
+        for attrs in ({'split': 'config.arm64'}, {'split_required': True},
+                      {'split_required': True, 'resmap': True}):
+            data = axml(PKG, **attrs)
+            if attrs.get('resmap'):
+                # Strip the attribute name, retaining the Android resource ID.
+                data = data.replace('isSplitRequired'.encode('utf-16-le'),
+                                    ('x' * len('isSplitRequired')).encode('utf-16-le'))
+            self.apk.write_bytes(apk({'AndroidManifest.xml': data}))
+            with self.subTest(attrs=attrs):
+                with self.assertRaisesRegex(backup.android.FrameError, 'needs split APKs'):
+                    backup.inspect([str(self.apk)])
+
+    def test_bundle_install_uses_existing_queue_and_cleans_after_failure(self):
+        source = self.bundle()
+        read = server.android_backup({'action': 'inspect', 'paths': [str(source)]})
+        entry = server._android_backups[read['token']]
+        folders = list(entry['dirs'])
+        def job(label, work, **kwargs):
+            return work(lambda *args: None)
+        with patch.object(server, 'ensure_master'), patch.object(server, 'start_job', side_effect=job), \
+                patch.object(backup, 'install', side_effect=backup.android.FrameError('fixture install failure')) as install:
+            with self.assertRaisesRegex(backup.android.FrameError, 'fixture install failure'):
+                server.android_backup({'action': 'install', 'token': read['token']})
+        install.assert_called_once_with(entry['plan'], 'auto', unittest.mock.ANY)
+        self.assertFalse(server._android_backups)
+        self.assertTrue(all(not Path(p).exists() for p in folders))
+        self.assertTrue(source.exists())
+
+    @unittest.skipUnless(shutil.which('node'), 'needs node')
+    def test_actual_send_handler_routes_bundle_to_importer_and_pc_zip_to_titles(self):
+        page = (Path(__file__).resolve().parents[1] / 'ui/index.html').read_text(encoding='utf-8')
+        function = page[page.index('async function sendFilesOne('):page.index('$("androidBackupChoose").onclick')]
+        script = r"""
+const calls = [];
+global.window = {connDevice:'fixture'};
+global.$ = () => ({});
+global.refresh = () => {};
+global.toast = msg => {throw new Error(msg)};
+global.TITLE_EXT = /\.(zip|exe)$/i;
+global.importAndroidFiles = async files => calls.push(['android', files.map(f => f.name)]);
+global.sideload = async file => calls.push(['title', file.name]);
+global.act = () => {throw new Error('unexpected copy')};
+(async () => {
+  for (const name of ['game.xapk', 'game.apks', 'game.apkm', 'pc.zip']) {
+    await sendFilesOne([{name, size:123}], new Set(), 'fixture');
+  }
+  await sendFilesOne([{name:'base.apk',size:123},{name:'split.apk',size:123}], new Set(), 'fixture');
+  process.stdout.write(JSON.stringify(calls));
+})().catch(e => {console.error(e); process.exitCode = 1});
+"""
+        result = subprocess.run(['node', '-e', function + script], capture_output=True, text=True, check=True)
+        self.assertEqual(json.loads(result.stdout), [
+            ['android', ['game.xapk']], ['android', ['game.apks']],
+            ['android', ['game.apkm']], ['title', 'pc.zip'],
+            ['android', ['base.apk', 'split.apk']]])
+
+
 if __name__ == '__main__':
    unittest.main()
@@ -17,6 +17,9 @@ PNG = (Path(__file__).parent / 'fixtures/apk-search/artwork/brush-icon.png').rea

 class ArtworkTests(unittest.TestCase):
    def setUp(self):
+        p = patch.object(search, 'compat_reports', None)
+        p.start()
+        self.addCleanup(p.stop)
        with _images._lock:
            _images._urls.clear()
            _images._tokens.clear()
@@ -0,0 +1,169 @@
+"""Search report snapshots: synthetic evidence only, no credentials or services."""
+import sandbox  # noqa: F401
+import sys
+import json
+import tempfile
+import threading
+import time
+import unittest
+from pathlib import Path
+from unittest.mock import Mock, patch
+
+sys.path.insert(0, str(Path(__file__).resolve().parents[1] / 'ui'))
+import frame_catalog
+import frame_compat_db as db
+from apk_sources import search
+from test_apk_search import SettingsTest, fake, ENTRIES
+
+
+class ReportTests(SettingsTest):
+    def hook(self, rows):
+        by = frame_catalog.reports.by_package(rows)
+        snapshot = {pkg: v for pkg, rs in by.items() if (v := frame_catalog.reports.verdict(rs))}
+        p = patch.object(search, 'compat_reports', lambda: snapshot)
+        p.start()
+        self.addCleanup(p.stop)
+
+    def test_search_and_details_share_catalogue_rules(self):
+        pkg = ENTRIES[0]['package']
+        self.hook([dict(package=pkg, date='2026-10-01', result='runs'),
+                   dict(package=pkg, date='2026-10-02', rating='broken', notes='Crashes <here>'),
+                   dict(package=pkg, date='2026-10-03', result='runs')])
+        mod = fake()
+        with patch.object(search, 'modules', return_value=([mod], [])):
+            offer = search.search(timeout=.01)['apps'][0]['offers'][0]
+            detail = search.details('one', ENTRIES[0]['id'])
+        self.assertEqual(detail['compat_report']['verdict'], 'no')
+        self.assertEqual(offer['compat_report'], detail['compat_report'])
+        self.assertEqual(detail['verdict']['tone'], 'warning')
+        self.assertIn('Reported not working', detail['verdict']['label'])
+
+    def test_warnings_never_change_installability_or_hard_blockers(self):
+        entry = dict(ENTRIES[0], min_sdk=23, abis=['arm64-v8a'])
+        for kind, tone in [('works', 'works'), ('issues', 'issues'), ('broken', 'warning')]:
+            self.hook([dict(package=entry['package'], date='2026-10-01', rating=kind)])
+            decorated = search.decorate(entry)
+            self.assertEqual(decorated['verdict']['tone'], tone)
+            self.assertTrue(decorated['fit']['installable'])
+            for blocker in [dict(min_sdk=31), dict(abis=['x86_64']),
+                            dict(requires_meta_services=True), dict(engine='VrApi')]:
+                blocked = search.decorate(dict(entry, **blocker))
+                self.assertEqual(blocked['verdict']['tone'], 'blocked')
+                self.assertIsNotNone(blocked['compat_report'])
+
+    def test_wrong_file_failures_do_not_warn_but_real_failures_do(self):
+        entry = dict(ENTRIES[0], min_sdk=23, abis=[])
+        for notes in ['no arm64-v8a build', 'needs Android API 32']:
+            self.hook([dict(package=entry['package'], date='2026-10-01', result='install_failed', notes=notes)])
+            self.assertIsNone(search.decorate(entry)['compat_report'])
+        self.hook([dict(package=entry['package'], date='2026-10-01', result='crashes')])
+        self.assertEqual(search.decorate(entry)['verdict']['tone'], 'warning')
+        self.hook([dict(package=entry['package'], date='2026-10-01', result='install_failed', notes='installer crashed')])
+        self.assertEqual(search.decorate(entry)['verdict']['tone'], 'warning')
+
+    def test_report_warning_does_not_prevent_install(self):
+        self.hook([dict(package=ENTRIES[0]['package'], date='2026-10-01', rating='broken')])
+        mod = fake()
+        with patch.object(search, 'modules', return_value=([mod], [])), \
+             patch.object(frame_catalog.frame_android, 'install', return_value={'package': ENTRIES[0]['package']}) as install:
+            result = search.install('one', ENTRIES[0]['id'])
+        self.assertEqual(result['package'], ENTRIES[0]['package'])
+        install.assert_called_once()
+
+    def test_stalled_loader_does_not_block_search_or_details(self):
+        entered, release, finished = threading.Event(), threading.Event(), threading.Event()
+        main = threading.get_ident()
+
+        def loader():
+            self.assertNotEqual(threading.get_ident(), main)
+            entered.set()
+            try:
+                if not release.wait(2):
+                    raise TimeoutError('test stalled')
+                return []
+            finally:
+                finished.set()
+
+        cache = search.ReportCache(loader, frame_catalog.reports.verdict)
+        from apk_sources import _web
+        with patch.object(search, 'compat_reports', cache.read), \
+             patch.object(search, 'modules', return_value=([fake()], [])), \
+             patch.object(_web, 'prune'), \
+             patch.object(db, 'key', side_effect=AssertionError('credentials on request')), \
+             patch.object(db._opener, 'open', side_effect=AssertionError('network on request')), \
+             patch.object(db.subprocess, 'run', side_effect=AssertionError('subprocess on request')):
+            try:
+                search.warm()  # production server startup, before the first request
+                self.assertTrue(entered.wait(1))
+                start = time.monotonic()
+                result = search.search(timeout=.01)
+                detail = search.details('one', ENTRIES[0]['id'])
+                self.assertLess(time.monotonic() - start, .2)
+                self.assertTrue(result['apps'])
+                self.assertIsNone(detail['compat_report'])
+            finally:
+                release.set()
+                self.assertTrue(finished.wait(1))
+
+
+class CacheTests(unittest.TestCase):
+    def wait_idle(self, cache):
+        deadline = time.monotonic() + 1
+        while time.monotonic() < deadline:
+            with cache._lock:
+                if not cache._running:
+                    return
+            time.sleep(.001)
+        self.fail('report worker did not finish')
+
+    def test_public_copy_reads_its_local_mirror_and_outbox(self):
+        with tempfile.TemporaryDirectory() as tmp:
+            mirror, outbox = Path(tmp) / 'mirror.json', Path(tmp) / 'outbox.jsonl'
+            mirror.write_text(json.dumps({'reports': [dict(package='org.example.app', id='old',
+                              date='2026-10-01', result='runs')]}))
+            outbox.write_text(json.dumps(dict(package='org.example.app', id='new',
+                              date='2026-10-02', rating='broken')) + '\n')
+            with patch.object(db, 'MIRROR', str(mirror)), patch.object(db, 'OUTBOX', str(outbox)), \
+                 patch.object(db, '_mem', dict(at=0, reports=None, source=None)), \
+                 patch.object(db, 'shared', return_value=False), \
+                 patch.object(db, 'fetch_all', side_effect=AssertionError('private database read')):
+                cache = search.ReportCache(db.load, frame_catalog.reports.verdict)
+                cache.read()
+                self.wait_idle(cache)
+                self.assertEqual(cache.read()['org.example.app'][0], 'no')
+
+    def test_ttl_refresh_is_single_flight_and_keeps_last_good_snapshot(self):
+        loader = Mock(return_value=[dict(package='org.example.app', date='2026-10-01', rating='issues')])
+        cache = search.ReportCache(loader, frame_catalog.reports.verdict, ttl=60)
+        cache.read()
+        self.wait_idle(cache)
+        first = cache.read()
+        self.assertEqual(first['org.example.app'][0], 'maybe')
+        self.assertEqual(loader.call_count, 1)
+        entered, release = threading.Event(), threading.Event()
+
+        def stalled():
+            entered.set()
+            release.wait(2)
+            raise OSError('offline')
+
+        loader.side_effect = stalled
+        cache._at -= 61
+        try:
+            self.assertIs(cache.read(), first)
+            self.assertTrue(entered.wait(1))
+            for _ in range(10):
+                self.assertIs(cache.read(), first)
+            self.assertEqual(loader.call_count, 2)
+        finally:
+            release.set()
+            self.wait_idle(cache)
+        self.assertIs(cache.read(), first)
+        self.assertEqual(loader.call_count, 2)  # failure also has a retry TTL
+        loader.side_effect = None
+        loader.return_value = [dict(package='org.example.app', date='2026-10-02', rating='works')]
+        cache._at -= 61
+        cache.read()
+        self.wait_idle(cache)
+        self.assertEqual(cache.read()['org.example.app'][0], 'works')
+        self.assertEqual(first['org.example.app'][0], 'maybe')  # published snapshots never mutated
@@ -27,6 +27,9 @@ def fake(source_id='one', fn=None):

 class SettingsTest(unittest.TestCase):
    def setUp(self):
+        p = patch.object(search, 'compat_reports', None)
+        p.start()
+        self.addCleanup(p.stop)
        self.tmp = tempfile.TemporaryDirectory()
        self.addCleanup(self.tmp.cleanup)
        p = patch.object(search, 'settings_path', return_value=Path(self.tmp.name) / 'enabled.json')
@@ -0,0 +1,536 @@
+"""Backup and recovery kit (ui/frame_backup.py, ui/frame_backup_remote.py) against a folder laid
+out like the Frame's home. The headset-side script runs for real, locally; only SSH is faked."""
+import sandbox  # noqa: F401  (first: keeps tests off real data and services)
+import io
+import json
+import os
+from pathlib import Path
+import re
+import shlex
+import subprocess
+import sys
+import tarfile
+import tempfile
+import unittest
+from unittest.mock import patch
+
+ROOT = Path(__file__).resolve().parents[1]
+sys.path.insert(0, str(ROOT / 'ui'))
+import frame_android as android  # noqa: E402
+import frame_backup as backup  # noqa: E402
+import frame_backup_remote as remote  # noqa: E402
+import server  # noqa: E402
+
+STEAM = '.local/share/Steam'
+USER = STEAM + '/steamapps/compatdata/%s/pfx/drive_c/users/steamuser'
+SECRETS = ['.steam/steam.token', STEAM + '/config/config.vdf', STEAM + '/config/loginusers.vdf',
+           STEAM + '/ssfn123456', '.ssh/id_ed25519', '.ssh/authorized_keys',
+           USER % 1234 + '/AppData/Roaming/Launcher/session.token',
+           USER % 1234 + '/AppData/Roaming/Launcher/.ssh/id_rsa',
+           '.config/cliproxyapi/secrets.env', '.local/share/keyrings/login.keyring']
+
+
+def write(home, rel, data=b'x'):
+    path = Path(home) / rel
+    path.parent.mkdir(parents=True, exist_ok=True)
+    path.write_bytes(data if isinstance(data, bytes) else data.encode())
+    return path
+
+
+def manifest(home, appid, name):
+    write(home, '%s/steamapps/appmanifest_%s.acf' % (STEAM, appid),
+          '"AppState"\n{\n\t"appid"\t\t"%s"\n\t"name"\t\t"%s"\n}\n' % (appid, name))
+
+
+def frame_home(home):
+    """A Frame before a reset: one Proton game, a Linux game, settings and secrets."""
+    manifest(home, 1234, 'Test Game')
+    write(home, USER % 1234 + '/AppData/Roaming/Studio/Game/save1.dat', b'save one')
+    write(home, USER % 1234 + '/Documents/My Games/Game/profile.sav', b'profile')
+    write(home, USER % 1234 + '/AppData/Local/Temp/junk.tmp', b'junk')
+    write(home, USER % 1234 + '/AppData/Local/Microsoft/Windows/x.db', b'wine')
+    write(home, USER % 999 + '/AppData/Local/Temp/only-cache', b'c')        # no saves: no part
+    write(home, STEAM + '/steamapps/compatdata/2800000001/internal/org.example/x', b'android')
+    write(home, STEAM + '/userdata/555/config/localconfig.vdf', b'local')
+    write(home, STEAM + '/userdata/555/config/shortcuts.vdf', b'shortcuts')
+    write(home, STEAM + '/userdata/555/241100/remote/controller_config/1234/layout.vdf', b'layout')
+    write(home, STEAM + '/userdata/555/1234/remote/cloud.sav', b'cloud')    # Steam Cloud's own
+    write(home, STEAM + '/userdata/555/760/remote/1234/screenshots/a.jpg', b'shot')
+    write(home, '.config/kdeglobals', b'[General]')
+    write(home, '.config/openvr/config/steamvr.vrsettings', b'{}')
+    write(home, '.config/unity3d/Company/LinuxGame/prefs', b'prefs')
+    write(home, '.bashrc', b'# mine')
+    for rel in SECRETS:
+        write(home, rel, b'SECRET')
+
+
+class Remote(unittest.TestCase):
+    def setUp(self):
+        self.tmp = tempfile.TemporaryDirectory()
+        self.home = Path(self.tmp.name)
+        patcher = patch.object(remote, 'HOME', self.home)
+        patcher.start()
+        self.addCleanup(patcher.stop)
+        self.addCleanup(self.tmp.cleanup)
+
+    def files(self, part):
+        return [rel for rel, _ in remote.part_files(part)[0]]
+
+    def test_plan_picks_saves_and_settings_and_never_secrets(self):
+        frame_home(self.home)
+        plan = remote.plan()
+        ids = [p['id'] for p in plan['parts']]
+        self.assertEqual(ids, ['saves:1234', 'saves:linux', 'settings:steam', 'settings:system'])
+        self.assertEqual(plan['parts'][0]['label'], 'Test Game saves')
+        saves = self.files('saves:1234')
+        self.assertEqual(sorted(saves), [USER % 1234 + '/AppData/Roaming/Studio/Game/save1.dat',
+                                         USER % 1234 + '/Documents/My Games/Game/profile.sav'])
+        steam = self.files('settings:steam')
+        self.assertIn(STEAM + '/userdata/555/241100/remote/controller_config/1234/layout.vdf', steam)
+        self.assertIn(STEAM + '/userdata/555/config/localconfig.vdf', steam)
+        self.assertFalse([f for f in steam if '/1234/remote/' in f or '/760/' in f])
+        everything = sum((self.files(i) for i in ids), [])
+        for rel in SECRETS + ['.bashrc']:
+            self.assertNotIn(rel, everything)
+        self.assertFalse([f for f in everything if remote.is_secret(f)])
+        self.assertTrue(any('steam.token' in x for x in plan['excluded']))
+        # The controller layout goes back; localconfig.vdf and shortcuts.vdf are for reference.
+        steam_part = plan['parts'][2]
+        self.assertEqual((steam_part['files'], steam_part['restorable']), (3, 1))
+
+    def test_secret_names(self):
+        for rel in SECRETS + ['a/b/ID_RSA.pub', 'x/kwalletd/k', 'x/cert.PEM']:
+            self.assertTrue(remote.is_secret(rel), rel)
+        for rel in ['saves/game.sav', 'Documents/tokens-collected.txt', 'config/localconfig.vdf']:
+            self.assertFalse(remote.is_secret(rel), rel)
+
+    @unittest.skipIf(os.name == 'nt', 'symlinks need privileges on Windows')
+    def test_links_are_never_followed(self):
+        frame_home(self.home)
+        outside = write(self.home, 'elsewhere/private.txt', b'p')
+        base = self.home / (USER % 1234) / 'Documents'
+        os.symlink(str(outside.parent), str(base / 'linked-dir'))
+        os.symlink(str(outside), str(base / 'linked-file'))
+        self.assertFalse([f for f in self.files('saves:1234') if 'linked' in f])
+
+    def test_big_files_are_listed_as_skipped(self):
+        frame_home(self.home)
+        with patch.object(remote, 'MAX_FILE', 3):
+            files, skipped = remote.part_files('saves:1234')
+        self.assertEqual(files, [])
+        self.assertEqual({s['reason'] for s in skipped}, {'over 2 GiB'})
+
+    def test_pack_holds_exactly_the_planned_files(self):
+        frame_home(self.home)
+        out = io.BytesIO()
+        remote.pack('saves:1234', out)
+        out.seek(0)
+        with tarfile.open(fileobj=out, mode='r:gz') as archive:
+            names = sorted(m.name for m in archive)
+        self.assertEqual(names, sorted(self.files('saves:1234')))
+        with self.assertRaises(ValueError):
+            remote.pack('saves:../../etc', io.BytesIO())
+
+    def archive(self, members):
+        out = io.BytesIO()
+        with tarfile.open(fileobj=out, mode='w:gz') as tar:
+            for name, data in members:
+                info = tarfile.TarInfo(name)
+                info.size = len(data)
+                tar.addfile(info, io.BytesIO(data))
+        out.seek(0)
+        return out
+
+    def test_check_after_a_reset(self):
+        save = USER % 1234 + '/AppData/Roaming/Studio/Game/save1.dat'
+        ask = {'parts': [{'id': 'saves:1234', 'files': [save]},
+                         {'id': 'settings:steam', 'files': [STEAM + '/userdata/555/241100/remote/controller_config/1/a.vdf']},
+                         {'id': 'settings:system', 'files': ['.config/openvr/config/steamvr.vrsettings']},
+                         {'id': 'saves:../x', 'files': []}]}
+        states = lambda: [p['status'] for p in remote.check(ask)['parts']]  # noqa: E731
+        self.assertEqual(states(), ['not_installed', 'no_account', 'reference', 'unknown'])
+        manifest(self.home, 1234, 'Test Game')
+        (self.home / STEAM / 'userdata/555').mkdir(parents=True)
+        self.assertEqual(states()[:2], ['no_prefix', 'ok'])
+        (self.home / (USER % 1234)).mkdir(parents=True)
+        result = remote.check(ask)['parts'][0]
+        self.assertEqual((result['status'], result['new'], result['replace']), ('ok', 1, 0))
+        write(self.home, save, b'newer')
+        self.assertEqual(remote.check(ask)['parts'][0]['replace'], 1)
+
+    def test_restore_replaces_only_its_files_and_keeps_the_old_ones(self):
+        manifest(self.home, 1234, 'Test Game')
+        save = USER % 1234 + '/AppData/Roaming/Studio/Game/save1.dat'
+        write(self.home, save, b'played since')
+        other = write(self.home, USER % 1234 + '/AppData/Roaming/Studio/Game/other.dat', b'untouched')
+        bashrc = write(self.home, '.bashrc', b'# mine')
+        source = self.archive([(save, b'from backup'), (USER % 1234 + '/Documents/new.sav', b'new'),
+                               ('.bashrc', b'# replaced?')])
+        result = remote.restore('saves:1234', '20261023-120000', source)
+        self.assertEqual((result['written'], result['replaced']), (2, 1))
+        self.assertEqual(result['held'], {'reference': 1})
+        self.assertEqual((self.home / save).read_bytes(), b'from backup')
+        self.assertEqual(other.read_bytes(), b'untouched')
+        self.assertEqual(bashrc.read_bytes(), b'# mine')
+        kept = self.home / remote.PREVIOUS / '20261023-120000' / save
+        self.assertEqual(kept.read_bytes(), b'played since')
+        self.assertFalse([p for p in (self.home / save).parent.iterdir() if p.name.endswith('.part')])
+
+    def test_unsafe_archives_write_nothing(self):
+        manifest(self.home, 1234, 'Test Game')
+        (self.home / (USER % 1234)).mkdir(parents=True)
+        good = (USER % 1234 + '/Documents/a.sav', b'a')
+        for bad in ('../escape', '/etc/passwd', USER % 1234 + '/Documents/../../../../../../x',
+                    USER % 1234 + '/Documents/a.sav'):
+            with self.assertRaises(ValueError, msg=bad):
+                remote.restore('saves:1234', '20261023-120000', self.archive([good, (bad, b'evil')]))
+            self.assertFalse((self.home / good[0]).exists(), bad)
+        link = io.BytesIO()
+        with tarfile.open(fileobj=link, mode='w:gz') as tar:
+            info = tarfile.TarInfo(USER % 1234 + '/Documents/l')
+            info.type, info.linkname = tarfile.SYMTYPE, '/etc/passwd'
+            tar.addfile(info)
+        link.seek(0)
+        with self.assertRaises(ValueError):
+            remote.restore('saves:1234', '20261023-120000', link)
+        with self.assertRaises(ValueError):
+            remote.restore('saves:1234', '../stamp', self.archive([good]))
+
+    def test_restore_refuses_secrets_and_other_games(self):
+        manifest(self.home, 1234, 'Test Game')
+        (self.home / (USER % 1234)).mkdir(parents=True)
+        result = remote.restore('saves:1234', '20261023-120000', self.archive([
+            (USER % 1234 + '/AppData/Roaming/L/auth.token', b't'), (USER % 5678 + '/Documents/x.sav', b'x')]))
+        self.assertEqual(result['written'], 0)
+        self.assertEqual(result['held'], {'refused': 1, 'reference': 1})
+
+
+class Session(unittest.TestCase):
+    def state(self, targets, running=(), configured=None):
+        with tempfile.TemporaryDirectory() as folder:
+            conf = write(folder, 'sddm.conf', 'Session=%s\n' % (configured or 'gamescope.desktop'))
+            with patch.object(remote, 'SDDM_CONFS', (str(conf),)), \
+                    patch.object(remote, '_session_target', side_effect=targets), \
+                    patch.object(remote, '_running', side_effect=lambda n, full=False: n in running), \
+                    patch.object(remote.shutil, 'which', return_value='/usr/bin/steamosctl'):
+                return remote.session()
+
+    def test_full_plasma_with_vr_gamescope_is_desktop(self):
+        # Issue #142, SteamOS 0.5.6: steamvr-plasma also starts nested scripts.
+        state = self.state(['inactive', 'active'],
+                           {'gamescope-wl', 'plasmashell', 'steamos-nested-desktop'},
+                           configured='gamescope.desktop')
+        self.assertEqual(state['mode'], 'desktop')
+        self.assertTrue(state['gamescope'])
+        self.assertTrue(state['nested_desktop'])
+        self.assertEqual(state['selector'], 'steamosctl')
+        self.assertEqual(state['session_targets']['plasma-workspace-wayland.target'], 'active')
+        with patch.object(backup, 'session_status', return_value=state), patch.object(backup, '_ssh') as ssh:
+            self.assertTrue(backup.return_to_game_mode(confirmed=True)['switched'])
+            ssh.assert_called_once_with('steamosctl switch-to-game-mode', timeout=60)
+
+    def test_game_target_wins_with_or_without_nested_desktop(self):
+        for running in ((), {'gamescope-wl'}, {'gamescope', 'plasmashell', 'steamos-nested-desktop'}):
+            state = self.state(['active', 'inactive'], running, configured='plasma.desktop')
+            self.assertEqual(state['mode'], 'game')
+            with patch.object(backup, 'session_status', return_value=state), patch.object(backup, '_ssh') as ssh:
+                self.assertFalse(backup.return_to_game_mode(confirmed=True)['switched'])
+                ssh.assert_not_called()
+
+    def test_conflicting_incomplete_and_transitional_targets_block_return(self):
+        for targets in (['active', 'active'], ['inactive', 'inactive'], ['active', 'unknown'],
+                        ['not-found', 'active'], ['unknown', 'unknown'], ['inactive', 'activating'],
+                        ['deactivating', 'active'], ['failed', 'active']):
+            with self.subTest(targets=targets):
+                state = self.state(targets, {'gamescope', 'plasmashell'}, 'plasma.desktop')
+                self.assertEqual(state['mode'], 'unknown')
+                with patch.object(backup, 'session_status', return_value=state), patch.object(backup, '_ssh') as ssh:
+                    with self.assertRaisesRegex(backup.BackupError, 'nothing was changed'):
+                        backup.return_to_game_mode(confirmed=True)
+                    ssh.assert_not_called()
+
+    def test_older_builds_use_only_unambiguous_running_processes(self):
+        cases = [((), 'unknown'), ({'plasmashell'}, 'desktop'),
+                 ({'gamescope'}, 'game'), ({'gamescope-wl'}, 'game'),
+                 ({'start-gamescope-session'}, 'game'),
+                 ({'gamescope', 'plasmashell'}, 'unknown'),
+                 ({'gamescope', 'steamos-nested-desktop'}, 'unknown')]
+        for running, expected in cases:
+            with self.subTest(running=running):
+                state = self.state(['not-found', 'not-found'], running, 'plasma.desktop')
+                self.assertEqual(state['mode'], expected)
+                self.assertEqual(state['mode_source'], 'legacy-processes')
+
+    def test_target_probe_parses_systemd_and_uses_main_user_bus(self):
+        cases = [('LoadState=loaded\nActiveState=active\n', 0, 'active'),
+                 ('ActiveState=inactive\nLoadState=loaded\n', 0, 'inactive'),
+                 ('LoadState=not-found\nActiveState=inactive\n', 0, 'not-found'),
+                 ('LoadState=error\nActiveState=active\n', 0, 'unknown'),
+                 ('garbage', 0, 'unknown'), ('LoadState=loaded\nActiveState=active', 1, 'unknown')]
+        for stdout, code, expected in cases:
+            with self.subTest(stdout=stdout, code=code), \
+                    patch.object(remote.os, 'getuid', return_value=1000, create=True), \
+                    patch.object(remote.subprocess, 'run', return_value=subprocess.CompletedProcess([], code, stdout)) as run:
+                self.assertEqual(remote._session_target('gamescope-session.target'), expected)
+                self.assertEqual(run.call_args.args[0], ['systemctl', '--user', 'show',
+                                 'gamescope-session.target', '--property=LoadState', '--property=ActiveState'])
+                self.assertEqual(run.call_args.kwargs['timeout'], 5)
+                self.assertEqual(run.call_args.kwargs['env']['DBUS_SESSION_BUS_ADDRESS'], 'unix:path=/run/user/1000/bus')
+                self.assertEqual(run.call_args.kwargs['env']['XDG_RUNTIME_DIR'], '/run/user/1000')
+        for error in (OSError('no systemctl'), subprocess.TimeoutExpired('systemctl', 5)):
+            with patch.object(remote.os, 'getuid', return_value=1000, create=True), \
+                    patch.object(remote.subprocess, 'run', side_effect=error):
+                self.assertEqual(remote._session_target('gamescope-session.target'), 'unknown')
+
+    def test_selector_preference_and_older_builds(self):
+        for available, expected in [({'steamosctl', 'steamos-session-select'}, 'steamosctl'),
+                                    ({'holo-session-select', 'steamos-session-select'}, 'holo-session-select'),
+                                    ({'steamos-session-select'}, 'steamos-session-select'), (set(), None)]:
+            with patch.object(remote, 'SDDM_CONFS', ()), \
+                    patch.object(remote, '_session_target', return_value='unknown'), \
+                    patch.object(remote, '_running', return_value=False), \
+                    patch.object(remote.shutil, 'which', side_effect=lambda n: '/usr/bin/' + n if n in available else None):
+                self.assertEqual(remote.session()['selector'], expected)
+
+    def test_script_probe_does_not_match_names_in_transmitted_python_source(self):
+        with patch.object(remote.subprocess, 'call', return_value=1) as call:
+            self.assertFalse(remote._running('steamos-nested-desktop', full=True))
+            pattern = call.call_args.args[0][-1]
+        for command in ('/usr/bin/steamos-nested-desktop',
+                        '/bin/sh /usr/bin/steamos-nested-desktop',
+                        'bash steamos-nested-desktop --flag'):
+            self.assertIsNotNone(re.search(pattern, command), command)
+        for command in ('python3 -c ' + backup.REMOTE.read_text(),
+                        '/bin/sh -c pgrep -f steamos-nested-desktop',
+                        '/usr/bin/steamos-nested-desktop-other'):
+            self.assertIsNone(re.search(pattern, command), command)
+
+
+def fake_ssh(home, os_release):
+    """Runs the headset-side command locally, as the Frame's python3 would."""
+    def run(command, src=None, dst=None, timeout=None):
+        argv = shlex.split(command)
+        assert argv[:2] == ['python3', '-c'], argv
+        data = src if isinstance(src, bytes) else src.read() if src is not None else b''
+        env = dict(os.environ, FRAME_BACKUP_HOME=str(home), FRAME_BACKUP_OS_RELEASE=str(os_release))
+        r = subprocess.run([sys.executable, *argv[1:]], input=data, capture_output=True, env=env)
+        if r.returncode:
+            raise backup.BackupError(r.stderr.decode(errors='replace'))
+        if dst is not None:
+            dst.write(r.stdout)
+            return None
+        return r.stdout
+    return run
+
+
+class Local(unittest.TestCase):
+    def setUp(self):
+        self.tmp = tempfile.TemporaryDirectory()
+        self.addCleanup(self.tmp.cleanup)
+        base = Path(self.tmp.name)
+        self.home, self.store = base / 'frame', base / 'backups'
+        self.release = write(base, 'os-release', 'ID=steamos\nVERSION_ID=0.4.1\nBUILD_ID=20260925.6191901\n')
+        frame_home(self.home)
+        for p in (patch.dict(os.environ, FRAME_BACKUP_DIR=str(self.store)),
+                  patch.object(backup, '_ssh', side_effect=fake_ssh(self.home, self.release))):
+            p.start()
+            self.addCleanup(p.stop)
+
+    def android_backup(self, package, destination):
+        write(Path(destination).parent, Path(destination).name, b'android archive ' + package.encode())
+        return {'package': package, 'instance': android.instance_id(package), 'files': 3, 'bytes': 42,
+                'path': str(destination), 'sha256': backup._sha256(destination)}
+
+    def make(self):
+        apps = [{'package': 'org.example.open', 'label': 'Open app', 'running': True},
+                {'package': 'org.example.game', 'label': 'Game', 'running': False}]
+        with patch.object(android, 'list_apps', return_value=apps), \
+                patch.object(android, 'backup_data', side_effect=self.android_backup) as data, \
+                patch.object(backup.time, 'strftime', side_effect=lambda f: '2026-10-23-120000' if f == '%Y-%m-%d-%H%M%S'
+                             else '2026-10-23T12:00:00+0100'):
+            result = backup.backup(headset='My Frame')
+        data.assert_called_once()
+        return result
+
+    def test_backup_writes_a_manifest_with_checksums(self):
+        result = self.make()
+        folder = backup.backup_path('2026-10-23-120000')  # resolved: macOS's temp folder is a link
+        self.assertEqual(result['path'], str(folder))
+        self.assertEqual(sorted(p.name for p in self.store.iterdir()), ['2026-10-23-120000'])  # no .partial left
+        m = json.loads((folder / 'manifest.json').read_text())
+        self.assertEqual(m['headset'], {'name': 'My Frame', 'build': '20260925.6191901', 'version': '0.4.1'})
+        self.assertEqual([p['id'] for p in m['parts']],
+                         ['saves:1234', 'saves:linux', 'settings:steam', 'settings:system', 'android:org.example.game'])
+        for part in m['parts']:
+            self.assertEqual(backup._sha256(folder / part['archive']), part['sha256'])
+        saves = m['parts'][0]
+        self.assertEqual(saves['archive'], 'saves/saves-1234.tar.gz')
+        self.assertEqual(sum(f['bytes'] for f in saves['files']), saves['bytes'])
+        self.assertEqual(saves['files'][0]['sha256'], __import__('hashlib').sha256(b'save one').hexdigest())
+        self.assertEqual([s['id'] for s in m['skipped']], ['android:org.example.open'])
+        for part in m['parts'][:-1]:
+            with tarfile.open(str(folder / part['archive'])) as tar:
+                for member in tar:
+                    self.assertFalse(remote.is_secret(member.name), member.name)
+                    self.assertNotEqual(tar.extractfile(member).read(), b'SECRET', member.name)
+
+    def test_a_failed_backup_leaves_nothing_behind(self):
+        with patch.object(backup, 'inspect_archive', side_effect=backup.BackupError('cut off')), \
+                patch.object(android, 'list_apps', return_value=[]):
+            with self.assertRaises(backup.BackupError):
+                backup.backup(kinds=['saves'])
+        self.assertEqual(list(self.store.iterdir()), [])
+
+    def test_backup_names_cannot_leave_the_folder(self):
+        for name in ('../2026-10-23-120000', '2026-10-23-120000/..', '..', '/etc', 'C:\\x', '',
+                     '2026-10-23-120000/../../x', '2026-10-23-12000', None, 5):
+            with self.assertRaises(backup.BackupError, msg=repr(name)):
+                backup.backup_path(name)
+        self.assertEqual(backup.backup_path('2026-10-23-120000'), (self.store / '2026-10-23-120000').resolve())
+
+    def test_manifest_entries_cannot_point_outside_the_backup(self):
+        self.make()
+        path = self.store / '2026-10-23-120000' / 'manifest.json'
+        m = json.loads(path.read_text())
+        for archive in ('../../secret.tar.gz', '/etc/passwd', 'saves/saves-5678.tar.gz'):
+            m['parts'][0]['archive'] = archive
+            path.write_text(json.dumps(m))
+            with self.assertRaises(backup.BackupError, msg=archive):
+                backup.read_manifest('2026-10-23-120000')
+
+    def reset(self):
+        """A factory reset: the home folder is empty again."""
+        import shutil
+        shutil.rmtree(str(self.home))
+        self.home.mkdir()
+
+    def test_restore_after_a_reset_skips_what_is_not_back_yet(self):
+        self.make()
+        self.reset()
+        manifest(self.home, 1234, 'Test Game')
+        (self.home / (USER % 1234)).mkdir(parents=True)  # started once
+        with patch.object(android, 'list_apps', return_value=[]):
+            plan = {p['id']: p for p in backup.restore_plan('2026-10-23-120000')['parts']}
+            self.assertEqual(plan['saves:1234']['status'], 'ok')
+            self.assertEqual(plan['settings:steam']['status'], 'no_account')
+            self.assertEqual(plan['android:org.example.game']['status'], 'not_installed')
+            with self.assertRaises(backup.BackupError):
+                backup.restore('2026-10-23-120000', ['saves:1234'])  # not confirmed
+            self.assertFalse((self.home / (USER % 1234) / 'AppData').exists())
+            result = backup.restore('2026-10-23-120000', ['saves:1234', 'settings:steam', 'android:org.example.game'],
+                                    confirmed=True)
+        self.assertEqual([r['id'] for r in result['restored']], ['saves:1234'])
+        self.assertEqual({s['id'] for s in result['skipped']}, {'settings:steam', 'android:org.example.game'})
+        self.assertEqual((self.home / (USER % 1234) / 'AppData/Roaming/Studio/Game/save1.dat').read_bytes(), b'save one')
+
+    def test_android_data_goes_back_through_the_existing_helper(self):
+        self.make()
+        apps = [{'package': 'org.example.game', 'label': 'Game', 'running': False}]
+        with patch.object(android, 'list_apps', return_value=apps), \
+                patch.object(android, 'restore_data', return_value={'restored': True}) as restore:
+            result = backup.restore('2026-10-23-120000', ['android:org.example.game'], confirmed=True)
+        restore.assert_called_once_with('org.example.game', str(backup.backup_path('2026-10-23-120000') /
+                                                                 'android' / 'org.example.game.tar.gz'))
+        self.assertEqual(len(result['restored']), 1)
+        apps[0]['running'] = True
+        with patch.object(android, 'list_apps', return_value=apps), patch.object(android, 'restore_data') as restore:
+            result = backup.restore('2026-10-23-120000', ['android:org.example.game'], confirmed=True)
+        restore.assert_not_called()
+        self.assertEqual(result['skipped'][0]['reason'], 'Close the app first')
+
+    def test_a_damaged_archive_is_skipped(self):
+        self.make()
+        with open(str(self.store / '2026-10-23-120000/saves/saves-1234.tar.gz'), 'ab') as f:
+            f.write(b'tampered')
+        with patch.object(android, 'list_apps', return_value=[]):
+            result = backup.restore('2026-10-23-120000', ['saves:1234'], confirmed=True)
+        self.assertEqual(result['restored'], [])
+        self.assertIn('checksum', result['skipped'][0]['reason'])
+
+    def test_list_backups(self):
+        self.make()
+        (self.store / '.2026-10-23-130000.partial').mkdir()
+        (self.store / 'notes').mkdir()
+        listed = backup.list_backups()['backups']
+        self.assertEqual([b['name'] for b in listed], ['2026-10-23-120000'])
+        self.assertEqual(listed[0]['build'], '20260925.6191901')
+
+
+class Ssh(unittest.TestCase):
+    def test_bytes_go_as_input_and_files_as_stdin(self):
+        done = subprocess.CompletedProcess([], 0, b'{}', b'')
+        with patch.object(backup.frame_host, 'run_ssh', return_value=done) as run:
+            backup._ssh('true', src=b'{"parts": []}')
+            self.assertEqual(run.call_args.kwargs['input'], b'{"parts": []}')
+            self.assertNotIn('stdin', run.call_args.kwargs)
+            with tempfile.TemporaryFile() as f:
+                backup._ssh('true', src=f)
+                self.assertIs(run.call_args.kwargs['stdin'], f)
+            backup._ssh('true')
+            self.assertIs(run.call_args.kwargs['stdin'], subprocess.DEVNULL)
+            self.assertEqual(run.call_args.args[0][-1], 'true')
+        with patch.object(backup.frame_host, 'run_ssh',
+                          return_value=subprocess.CompletedProcess([], 1, b'', b'Permission denied')):
+            with self.assertRaisesRegex(backup.BackupError, 'Permission denied'):
+                backup._ssh('true')
+
+
+class GameMode(unittest.TestCase):
+    def test_command_is_only_ever_the_session_switch(self):
+        self.assertEqual(backup.session_command('steamosctl'), 'steamosctl switch-to-game-mode')
+        self.assertEqual(backup.session_command('steamos-session-select'), 'steamos-session-select gamescope')
+        self.assertEqual(backup.session_command('holo-session-select'), 'holo-session-select gamescope')
+        for bad in (None, '', 'rm -rf ~', '/tmp/steamos-session-select', 'steamos-session-select; reboot',
+                    'steamosctl switch-to-desktop-mode', 'steamosctl; reboot'):
+            with self.assertRaises(backup.BackupError):
+                backup.session_command(bad)
+
+    def test_switch_needs_confirmation_and_desktop_mode(self):
+        with patch.object(backup, '_ssh') as ssh:
+            with self.assertRaises(backup.BackupError):
+                backup.return_to_game_mode()
+            ssh.assert_not_called()
+        with patch.object(backup, 'session_status', return_value={'mode': 'game', 'selector': 'steamos-session-select'}), \
+                patch.object(backup, '_ssh') as ssh:
+            self.assertFalse(backup.return_to_game_mode(confirmed=True)['switched'])
+            ssh.assert_not_called()
+        with patch.object(backup, 'session_status', return_value={'mode': 'unknown', 'selector': 'steamos-session-select'}), \
+                patch.object(backup, '_ssh') as ssh:
+            with self.assertRaisesRegex(backup.BackupError, 'nothing was changed'):
+                backup.return_to_game_mode(confirmed=True)
+            ssh.assert_not_called()
+        with patch.object(backup, 'session_status', return_value={'mode': 'desktop', 'selector': 'steamos-session-select'}), \
+                patch.object(backup, '_ssh') as ssh:
+            self.assertTrue(backup.return_to_game_mode(confirmed=True)['switched'])
+            ssh.assert_called_once_with('steamos-session-select gamescope', timeout=60)
+            ssh.side_effect = backup.BackupError('the headset took too long to answer')  # the session restarted
+            self.assertTrue(backup.return_to_game_mode(confirmed=True)['switched'])
+            ssh.side_effect = backup.BackupError('Interactive authentication required')
+            with self.assertRaisesRegex(backup.BackupError, 'manual steps'):
+                backup.return_to_game_mode(confirmed=True)
+        with patch.object(backup, 'session_status', return_value={'mode': 'desktop', 'selector': None}), \
+                patch.object(backup, '_ssh') as ssh:
+            with self.assertRaises(backup.BackupError):
+                backup.return_to_game_mode(confirmed=True)
+            ssh.assert_not_called()
+
+
+class Endpoint(unittest.TestCase):
+    def test_guards_run_before_the_headset(self):
+        with patch.object(backup, '_ssh') as ssh, patch.object(server, 'start_job') as job:
+            for body in ({'action': 'plan', 'name': '../x'}, {'action': 'open', 'name': '..'},
+                         {'action': 'restore', 'name': '2026-10-23-120000', 'parts': ['saves:1234']},
+                         {'action': 'restore', 'name': '2026-10-23-120000', 'parts': ['saves:x'], 'confirm': True},
+                         {'action': 'gamemode'}, {'action': 'backup', 'kinds': ['ssh-keys']}, {'action': 'nope'}):
+                with self.assertRaises(server.Failure, msg=body) as caught:
+                    server.backup_action(body)
+                self.assertEqual(caught.exception.status, 400)
+            ssh.assert_not_called()
+            job.assert_not_called()
+            with patch.object(server, 'LOCAL', True):
+                with self.assertRaises(server.Failure):
+                    server.backup_action({'action': 'list'})
+
+
+if __name__ == '__main__':
+    unittest.main()
@@ -0,0 +1,86 @@
+"""Read-only sysfs battery parsing; fixture values, no real headset access."""
+import sandbox  # noqa: F401
+from pathlib import Path
+import sys
+import tempfile
+import unittest
+from unittest import mock
+
+sys.path.insert(0, str(Path(__file__).resolve().parents[1] / 'ui'))
+import frame_status as status
+
+
+class Battery(unittest.TestCase):
+    def probe(self, fields):
+        # Real files exercise missing files, whitespace and integer conversion.
+        with tempfile.TemporaryDirectory() as tmp:
+            node = Path(tmp) / 'max1720x_bat_7-36'
+            node.mkdir()
+            for name, value in dict(type='Battery', **fields).items():
+                (node / name).write_text(str(value) + '\n')
+            with mock.patch.object(status.glob, 'glob', return_value=[str(node)]):
+                result = status.battery()
+            if result:
+                result.pop('source')
+            return result
+
+    def test_frame_units_and_optional_health(self):
+        b = self.probe(dict(capacity=73, status='Charging', voltage_now=3800000,
+                            current_now=1000000, temp=325, health='Good',
+                            charge_full=4600000, charge_full_design=5000000,
+                            cycle_count=42, time_to_full_now=3600))
+        self.assertEqual(b, dict(percent=73, status='Charging', watts=3.8,
+                                tempC=32.5, health='Good', timeToFull=3600,
+                                timeToEmpty=None, cycleCount=42, fullMah=4600,
+                                designMah=5000, capacityHealthPercent=92))
+
+    def test_zero_negative_current_and_temperature(self):
+        b = self.probe(dict(capacity=0, cycle_count=0, temp=-50,
+                            voltage_now=3800000, current_now=-1000000))
+        self.assertEqual((b['percent'], b['cycleCount'], b['tempC'], b['watts']),
+                         (0, 0, -5, -3.8))
+
+    def test_missing_optional_sensors_stay_null(self):
+        b = self.probe(dict(capacity=50, status='Discharging'))
+        self.assertEqual(b['percent'], 50)
+        self.assertTrue(all(value is None for key, value in b.items()
+                            if key not in ('percent', 'status')))
+
+    def test_invalid_values_do_not_break_other_readings(self):
+        for invalid in ('abc', '', '-1', '101', '12.5'):
+            b = self.probe(dict(capacity=invalid, status='Charging', temp='bad',
+                                charge_full=4500000, charge_full_design=0,
+                                time_to_full_now=-1, time_to_empty_now=4294967295,
+                                cycle_count=-1, voltage_now='bad', current_now=100))
+            self.assertIsNone(b['percent'])
+            for key in ('watts', 'tempC', 'capacityHealthPercent', 'timeToFull', 'timeToEmpty', 'cycleCount'):
+                self.assertIsNone(b[key], key)
+            self.assertEqual(b['status'], 'Charging')
+
+    def test_no_battery_and_unreadable_type(self):
+        with mock.patch.object(status.glob, 'glob', return_value=[]):
+            self.assertIsNone(status.battery())
+        with mock.patch.object(status.glob, 'glob', return_value=['/missing']), \
+                mock.patch('builtins.open', side_effect=PermissionError):
+            self.assertIsNone(status.battery())
+
+    def test_prefers_frame_and_excludes_peripheral_or_absent_batteries(self):
+        paths = ['/sys/class/power_supply/aaa', '/sys/class/power_supply/max1720x_bat_7-36']
+        def read(path):
+            return {'type': 'Battery', 'capacity': '80'}.get(path.rsplit('/', 1)[-1])
+        with mock.patch.object(status.glob, 'glob', return_value=paths), \
+                mock.patch.object(status, 'read', side_effect=read):
+            self.assertEqual(status.battery()['source'], paths[1])
+        self.assertIsNone(self.probe(dict(scope='Device', capacity=99)))
+        self.assertIsNone(self.probe(dict(present=0, capacity=99)))
+
+    def test_permission_failure_affects_only_one_sensor(self):
+        actual_open = open
+        def guarded(path, *args, **kwargs):
+            if str(path).endswith('/temp'):
+                raise PermissionError('unreadable')
+            return actual_open(path, *args, **kwargs)
+        with mock.patch('builtins.open', side_effect=guarded):
+            b = self.probe(dict(capacity=45, temp=300))
+        self.assertEqual(b['percent'], 45)
+        self.assertIsNone(b['tempC'])
@@ -0,0 +1,208 @@
+"""Doctor tests never contact a headset or the user's SSH configuration."""
+import importlib.util
+import io
+import json
+from pathlib import Path
+import subprocess
+import tempfile
+import unittest
+from unittest.mock import patch, Mock
+
+ROOT = Path(__file__).resolve().parents[1]
+spec = importlib.util.spec_from_file_location('frame_doctor', ROOT / 'scripts/frame_doctor.py')
+doctor = importlib.util.module_from_spec(spec)
+spec.loader.exec_module(doctor)
+doctor.MESSAGES = doctor.messages()
+
+
+def result(out='', code=0, err=''):
+    return subprocess.CompletedProcess([], code, out, err)
+
+
+class FrameDoctor(unittest.TestCase):
+    def main(self, responses, **kwargs):
+        config = result('hostname private-tailnet.ts.net\nhostkeyalias pinned-frame\n')
+        with patch.object(doctor.shutil, 'which', return_value='/usr/bin/ssh'), \
+                patch.object(doctor, 'run', side_effect=[config, *responses]) as run, \
+                patch.object(doctor, 'port_open', return_value=kwargs.get('devkit', False)), \
+                patch('sys.stdout', new_callable=io.StringIO) as output:
+            code = doctor.main(kwargs.get('argv', []))
+        return code, output.getvalue(), run
+
+    def test_unreachable_is_actionable_without_exposing_stderr(self):
+        code, text, _ = self.main([result(code=255, err='secret-token 192.0.2.5')] * 3)
+        self.assertEqual(code, 2)
+        self.assertIn('wake headset', text)
+        self.assertEqual(text.count('No authenticated SSH path.'), 11)
+        self.assertNotIn('secret-token', text)
+        self.assertNotIn('192.0.2.5', text)
+        self.assertNotIn('private-tailnet', text)
+
+    def test_no_keys_and_devkit_available_never_registers(self):
+        code, text, run = self.main([result(code=255, err='Permission denied')] * 3, devkit=True)
+        self.assertEqual(code, 2)
+        self.assertIn('no pairing request was sent', text)
+        self.assertIn('Pair new host', text)
+        self.assertFalse(any('/register' in str(c.args[0]) for c in run.call_args_list))
+
+    def test_fallback_preserves_identity_and_disables_mutating_ssh_options(self):
+        _, text, run = self.main([result(code=255), result(json.dumps({'guard': 'loop', 'checks': []}))])
+        args = run.call_args_list[2].args[0]
+        for flag in ('HostKeyAlias=pinned-frame', 'HostName=frame.local', 'BatchMode=yes',
+                     'StrictHostKeyChecking=yes', 'UpdateHostKeys=no', 'PermitLocalCommand=no',
+                     'ClearAllForwardings=yes', 'ControlPath=none'):
+            self.assertIn(flag, args)
+        self.assertIn('OK Connection: LAN', text)
+        self.assertIn('Counters are rising', text)
+
+    def test_hostkey_failure_does_not_suggest_deleting_identity(self):
+        _, text, _ = self.main([result(code=255, err='REMOTE HOST IDENTIFICATION HAS CHANGED')] * 3)
+        self.assertIn('Do not delete known_hosts', text)
+
+    def test_invalid_probe_response_never_prints_remote_data(self):
+        for payload in ('a secret token', json.dumps({'guard': 'stable', 'checks': [['OK', 'secret']] * 11})):
+            code, text, _ = self.main([result(payload)])
+            self.assertEqual(code, 1)
+            self.assertNotIn('secret', text)
+
+    def test_guard_stops_before_any_deeper_checks(self):
+        for state in ('loop', 'unknown', 'risk'):
+            with patch.object(doctor, 'guard', return_value=state), patch.object(doctor, 'journal') as journal:
+                self.assertEqual(doctor.probe(), {'guard': state, 'checks': []})
+                journal.assert_not_called()
+
+    def test_rising_and_reset_counters_and_missing_data(self):
+        for snapshots, expected in (([[0, 0, 0, 0], [1, 0, 0, 0]], 'loop'),
+                                    ([[1, 0, 0, 0], [0, 0, 0, 0]], 'unknown'),
+                                    ([None, None], 'unknown'),
+                                    ([[0, 4, 0, 0]] * 2, 'risk'),
+                                    ([[0, 0, 0, 0]] * 2, 'stable')):
+            with patch.object(doctor, 'snapshot', side_effect=snapshots), patch.object(doctor.time, 'sleep'):
+                self.assertEqual(doctor.guard(), expected)
+
+    def test_journal_permission_denied_and_empty_are_unknown(self):
+        for response in (result('partial', err='not seeing messages from other users'), result(), result(code=1)):
+            with patch.object(doctor, 'run', return_value=response):
+                self.assertIsNone(doctor.journal('-b'))
+        self.assertEqual(doctor.signal_check(None, 'bad', 'problem', 'healthy')[0], 'UNKNOWN')
+
+    def test_disk_full_reports_broken_and_never_fixes(self):
+        with patch.object(doctor.shutil, 'disk_usage', return_value=Mock(free=0)):
+            check = doctor.storage()
+        with patch('sys.stdout', new_callable=io.StringIO) as output:
+            code = doctor.report({'guard': 'stable', 'checks': [check] * 11})
+        self.assertEqual(code, 1)
+        self.assertIn('BROKEN 4. Steam and storage', output.getvalue())
+
+    def test_probe_only_emits_approved_messages_and_rechecks_guard(self):
+        with patch.object(doctor, 'guard', side_effect=['stable', 'stable']) as guard, \
+                patch.object(doctor, 'journal', return_value=None), \
+                patch.object(doctor, 'command', return_value=None), \
+                patch.object(doctor, 'run', return_value=None), \
+                patch.object(doctor, 'storage', return_value=['UNKNOWN', 'Storage could not be read.']):
+            data = doctor.probe()
+        self.assertEqual(guard.call_count, 2)
+        self.assertEqual(len(data['checks']), 11)
+        with patch('sys.stdout', new_callable=io.StringIO):
+            self.assertEqual(doctor.report(data), 1)
+
+    def stable(self, disk=None):
+        checks = [['UNKNOWN', 'Evidence unavailable; consult the runbook locally.'] for _ in doctor.SECTIONS]
+        checks[3] = disk or ['BROKEN', 'Less than 16 MiB free; review storage in Frame Control before installing.']
+        return {'guard': 'stable', 'checks': checks}
+
+    def test_plan_requires_exact_evidence_and_never_adds_remote_commands(self):
+        data = self.stable()
+        code, text, calls = self.main([result(json.dumps(data))], argv=['--plan'])
+        self.assertEqual(code, 1)
+        self.assertIn('READ-ONLY', text)
+        self.assertIn('use Steam storage management', text)
+        self.assertEqual(calls.call_count, 2)  # config read and unchanged read-only probe
+        data['checks'][3] = ['BROKEN', 'Evidence unavailable; consult the runbook locally.']
+        _, text, _ = self.main([result(json.dumps(data))], argv=['--plan'])
+        self.assertNotIn('use Steam storage management', text)
+        self.assertIn('does not establish a safe automatic fix', text)
+
+    def test_plan_guard_blocks_all_section_actions(self):
+        for state in ('loop', 'risk', 'unknown'):
+            _, text, _ = self.main([result(json.dumps({'guard': state, 'checks': []}))], argv=['--plan'])
+            self.assertIn('BLOCKED', text)
+            self.assertNotIn('PLAN 4.', text)
+
+    def test_before_after_and_exclusive_private_baseline(self):
+        with tempfile.TemporaryDirectory() as folder:
+            path = Path(folder) / 'before.json'
+            before = self.stable()
+            _, text, _ = self.main([result(json.dumps(before))], argv=['--save-report', str(path)])
+            saved = path.read_text()
+            self.assertNotIn('private-tailnet', saved)
+            self.assertNotIn('pinned-frame', saved)
+            if __import__('os').name != 'nt':
+                self.assertEqual(path.stat().st_mode & 0o777, 0o600)
+            after = self.stable(['OK', 'Home and title storage have at least 256 MiB free.'])
+            _, text, _ = self.main([result(json.dumps(after))], argv=['--compare-before', str(path)])
+            self.assertIn('Steam and storage: BROKEN -> OK', text)
+            self.assertIn('do not prove repair', text)
+            self.assertIn('Before evidence: Less than 16 MiB free', text)
+            self.assertIn('After evidence: Home and title storage', text)
+            code, _, _ = self.main([result(json.dumps(after))], argv=['--save-report', str(path)])
+            self.assertEqual(code, 2)
+            self.assertEqual(path.read_text(), saved)
+            # Same alias with changed routing cannot masquerade as the same baseline.
+            code, text, calls = self.main([], argv=['--compare-before', str(path), '--usb', '192.0.2.9'])
+            self.assertEqual(code, 2)
+            self.assertIn('comparison refused', text)
+            self.assertEqual(calls.call_count, 1)
+
+    def test_report_refuses_symlinks(self):
+        with tempfile.TemporaryDirectory() as folder:
+            target = Path(folder) / 'target'
+            target.write_text('preserve')
+            link = Path(folder) / 'link'
+            try:
+                link.symlink_to(target)
+            except OSError:
+                self.skipTest('symlinks unavailable')
+            code, _, _ = self.main([result(json.dumps(self.stable()))], argv=['--save-report', str(link)])
+            self.assertEqual(code, 2)
+            self.assertEqual(target.read_text(), 'preserve')
+
+    def test_comparison_suppresses_improvement_if_guard_fails(self):
+        with patch('sys.stdout', new_callable=io.StringIO) as output:
+            doctor.compare(self.stable(), {'guard': 'risk', 'checks': []})
+        self.assertIn('Comparison blocked', output.getvalue())
+        self.assertNotIn('BROKEN -> OK', output.getvalue())
+
+    def test_untrusted_baselines_and_probe_are_rejected_without_echo(self):
+        for payload in ('secret', '[]', '{"version":1}', 'x' * 65537, '[' * 2000 + ']' * 2000):
+            with tempfile.TemporaryDirectory() as folder:
+                path = Path(folder) / 'baseline.json'
+                path.write_text(payload)
+                code, text, calls = self.main([], argv=['--compare-before', str(path)])
+                self.assertEqual(code, 2)
+                self.assertNotIn('secret', text)
+                calls.assert_not_called()
+        for data in ({'guard': 'secret', 'checks': []},
+                     {'guard': 'risk', 'checks': [['WARN', 'secret']]},
+                     dict(self.stable(), raw='secret'),
+                     self.stable(['WARN', 'Never pairs'])):
+            code, text, _ = self.main([result(json.dumps(data))], argv=['--plan'])
+            self.assertEqual(code, 1)
+            self.assertNotIn('secret', text)
+            self.assertNotIn('Repair plan', text)
+
+    def test_help_shell_entry_point_is_offline(self):
+        # This Bash wrapper is for macOS/Linux; Windows uses the Python CLI.
+        import os, shutil
+        if os.name == 'nt':
+            self.skipTest('POSIX shell wrapper')
+        if not shutil.which('bash'):
+            self.skipTest('bash unavailable')
+        r = subprocess.run(['bash', str(ROOT / 'scripts/frame-doctor.sh'), '--help'],
+                           capture_output=True, text=True, timeout=5)
+        self.assertEqual(r.returncode, 0, r.stderr)
+        self.assertIn('Never pairs', r.stdout)
+
+
+if __name__ == '__main__':
+    unittest.main()
@@ -64,6 +64,7 @@ class LinkUI(unittest.TestCase):
  renderPill();
  assert.match($('conn').innerHTML, /<b>Office Frame<\/b><span>Offline<span class="via"> · retrying in 12 s<\/span>/);
  assert.ok($('conn').title.includes(changed.error.message));
+  assert.ok(!$('conn').title.includes('..'), $('conn').title);
  // Without a short reason: the stage that failed.
  link.s = {...changed, retry_at: null, error: {stage: 'identity', message: 'Something.'}};
  renderPill();
@@ -120,7 +121,9 @@ class LinkUI(unittest.TestCase):
 class HeaderLayout(unittest.TestCase):
    def test_the_devices_tab_explanation_wraps(self):
        # It was cut to one line with no way to read the rest.
-        self.assertIn(".dev-problem .s { white-space: normal; }", PAGE)
+        # More specific than the later .item .s rule: the old equal-specificity
+        # rule passed this test while the browser still clipped the explanation.
+        self.assertIn(".item.dev-problem .s { white-space: normal; overflow-wrap: anywhere; }", PAGE)
        self.assertEqual(len(re.findall(r'<div class="item dev-problem" role="alert">', PAGE)), 2)

    def test_the_header_buttons_dont_give_way(self):
@@ -0,0 +1,151 @@
+"""Issue #81: synthetic, deterministic log scrubbing; no sockets or private data."""
+import sandbox  # noqa: F401
+import random
+import re
+import sys
+import unittest
+from pathlib import Path
+from unittest import mock
+
+sys.path.insert(0, str(Path(__file__).resolve().parent.parent / 'ui'))
+import frame_link as fl
+import frame_telemetry as tm
+
+
+def baseline(text, hosts):
+    """Frozen v0.4.11 connection pipeline, before issue #81's extra spans.
+
+    Keep these operations independent of frame_link's implementations so a change
+    to its ordering or matching cannot silently weaken the differential oracle.
+    The shared scrubber's default behavior is deliberately unchanged by this fix.
+    """
+    keep = {'host', 'hostname', 'to', 'port', 'answer', 'the', 'a', 'an', 'this',
+            'it', 'its', 'be', 'connect', 'find', 'work', 'try'}
+    names = sorted({h for h in hosts if h and h.lower() not in keep}, key=len, reverse=True)
+    parts = re.split(r'(<(?:host|user|email|ip|mac|steamid|hex|token|ssh-key|pem|url|redacted)>)', text)
+    for i in range(0, len(parts), 2):
+        for name in names:
+            parts[i] = re.sub(r'(?<![\w.:-])%s(?![\w-]|[:.%%]\w)' % re.escape(name),
+                              '<host>', parts[i], flags=re.I)
+    plain = keep - {'host', 'hostname', 'to', 'port'}
+
+    def operand(match):
+        word = match.group(2).rstrip('.')
+        return (match.group(0) if word.lower() in plain else
+                f'{match.group(1)} <host>{match.group(2)[len(word):]}')
+
+    text = re.sub(r'''(?i)\b(hostname|host|to(?:\s+host)?)\s+(?!<)([^\s:,;'"()|]+)''',
+                  operand, ''.join(parts))
+    return tm.scrub(text, 600)
+
+
+class LogScrubbing(unittest.TestCase):
+    def setUp(self):
+        patch = mock.patch.object(tm, '_user_names', return_value={'SyntheticLogin'})
+        patch.start()
+        self.addCleanup(patch.stop)
+
+    def test_display_name_crosses_a_scrubber_token(self):
+        name = '<host> Jane Doe headset'
+        self.assertEqual(fl.scrub_failure(name + ' stopped answering', [name]), '<host> stopped answering')
+        self.assertEqual(fl.scrub_failure('<user>@<host>: <ip>', ['user', 'host', 'ip']),
+                         '<user>@<host>: <ip>')
+        self.assertEqual(fl.scrub_failure('<host>', ['<host>']), '<host>')
+
+    def test_all_standalone_tokens_survive_and_whole_names_cross_them(self):
+        for token in ('host', 'user', 'email', 'ip', 'mac', 'steamid', 'hex',
+                      'token', 'ssh-key', 'pem', 'url', 'redacted'):
+            token = '<' + token + '>'
+            name = token + ' Synthetic Fixture headset'
+            with self.subTest(token=token):
+                self.assertEqual(fl.scrub_failure(token, [token, token[1:-1]]), token)
+                self.assertEqual(fl.scrub_failure(name.upper() + ' failed', [name]), '<host> failed')
+
+    def test_a_name_crossing_the_output_limit_leaves_no_fragment(self):
+        name = '<host> ' + 'Synthetic ' * 100 + 'headset'
+        self.assertEqual(fl.scrub_failure(name + ' trailing detail', [name]), '<host>')
+
+    def test_display_name_cannot_swallow_ssh_operand_marker(self):
+        text = 'ssh: connect to host bastion-jane port 22: Connection refused'
+        self.assertEqual(fl.scrub_failure(text, ['to host']),
+                         'ssh: connect <host> <host> port 22: Connection refused')
+
+    def test_reverted_fix_counterexamples(self):
+        cases = [
+            ('Could not connect to hostname bastion-jane', ['connect to'], ['bastion-jane']),
+            ('Jane Smith@<host>: Permission denied', ['Smith@<host>'], ['Jane', 'Smith']),
+            ('frame.local Jane Doe headset stopped answering', ['frame.local Jane Doe headset'], ['Jane', 'Doe']),
+            ('x ' * 295 + 'frame.local Jane Doe headset', ['frame.local Jane Doe headset'], ['Jane', 'Doe']),
+            ('https://jane@example.com/private(confidential)', ['jane@example.com'], ['private', 'confidential']),
+            (r'C:\Users\Jane@workpc (Smith)\.ssh\config', ['Jane@workpc'], ['Jane', 'Smith']),
+            ('-----BEGIN PRIVATE KEY-----\nSYNTHETICBODY\n-----END PRIVATE KEY-----@frame',
+             ['KEY-----@frame'], ['SYNTHETICBODY']),
+            ('Could not connect to hostname /home/Jane Doe/.ssh/config', ['connect to'], ['Jane', 'Doe']),
+        ]
+        for text, hosts, private in cases:
+            with self.subTest(text=text):
+                out = fl.scrub_failure(text, hosts)
+                for value in private:
+                    self.assertNotIn(value, out)
+                self.assertLessEqual(len(out), 600)
+
+    def test_overlapping_names_and_operands_and_literal_tokens(self):
+        cases = [
+            ('Alpha Beta Gamma failed', ['Alpha Beta', 'Beta Gamma'], '<host> failed'),
+            ('<host> Jane Doe headset failed', ['<host> Jane Doe headset', 'Jane Doe'], '<host> failed'),
+            ('to hostname bastion-jane', [], 'to <host> <host>'),
+            ('<host failed', ['<host'], '<host> <host>'),
+        ]
+        for text, hosts, expected in cases:
+            with self.subTest(text=text):
+                self.assertEqual(fl.scrub_failure(text, hosts), expected)
+
+    def test_randomized_differential_against_v0411(self):
+        rng = random.Random(81)
+        templates = [
+            'https://{u}@example.invalid/{p}(confidential)?key={p}',
+            r'C:\Users\{u}@workpc ({p})\.ssh\config',
+            '/home/{u} {p}/.ssh/config',
+            '-----BEGIN PRIVATE KEY-----\n{p}\n-----END PRIVATE KEY-----@frame',
+            '{u}.{p}@example.invalid',
+            'fe80::abcd%{u}',
+            '{u} {p}@frame.local: Permission denied',
+            'ssh-ed25519 {p}',
+            'password={p}',
+            '<host> {u} {p} headset stopped answering',
+            'frame.local {u} {p} headset stopped answering',
+        ]
+        for iteration in range(1200):
+            user = 'Synthetic' + ''.join(rng.choices('abcdefghijklmnopqrstuvxyz', k=14))
+            private = 'Fixture' + ''.join(rng.choices('abcdefghijklmnopqrstuvxyz', k=18))
+            field = rng.choice(templates).format(u=user, p=private)
+            prefix = rng.choice(['', 'Could not connect to hostname ', 'ssh: connect to host ',
+                                 'Timed out talking to ', 'debug | ', 'x ' * 295])
+            text = prefix + field + rng.choice(['', ' port 22: refused', '\nnext line', "'s password: "])
+            # Names intentionally cut through the syntax later scrubber rules need.
+            options = [user, user + '@workpc', private, 'connect to', 'to host',
+                       '<host> ' + user + ' ' + private + ' headset',
+                       'frame.local ' + user + ' ' + private + ' headset',
+                       'KEY-----@frame', 'host', '<host>', 'SyntheticLogin']
+            hosts = rng.sample(options, rng.randrange(5))
+            before, after = baseline(text, hosts), fl.scrub_failure(text, hosts)
+            with self.subTest(iteration=iteration, text=text, hosts=hosts):
+                trace = fl._ScrubTrace(text)
+                traced = tm.scrub(fl.hide_operands(fl.hide_hosts(text, hosts, _trace=trace),
+                                                  _sub=trace.sub), 600, _sub=trace.sub)
+                self.assertEqual(traced, before)
+                # Compare every original three-character window, not just whole
+                # canaries: even a partially exposed user/path/secret is a regression.
+                # Mask placeholders with a separator so removing one cannot join
+                # unrelated text into a misleadingly new three-character window.
+                old_visible = fl.PLACEHOLDER.sub('\0', before)
+                new_visible = fl.PLACEHOLDER.sub('\0', after)
+                for start in range(len(text) - 2):
+                    fragment = text[start:start + 3]
+                    if fragment not in old_visible:
+                        self.assertNotIn(fragment, new_visible)
+                self.assertLessEqual(len(after), 600)
+
+
+if __name__ == '__main__':
+    unittest.main()
@@ -84,7 +84,10 @@ class Helpers(unittest.TestCase):
    @unittest.skipUnless(shutil.which("bash"), "needs bash")
    @unittest.skipIf(os.name == "nt", "Windows' bash.exe is WSL's launcher, and runners have no distribution")
    def test_launch_script_parses(self):
-        r = subprocess.run(["bash", "-n"], input=frame_macview.LAUNCH, text=True, capture_output=True)
+        bash = str(Path(os.environ.get("ProgramFiles", "C:/Program Files")) / "Git/bin/bash.exe") if sys.platform == "win32" else "bash"
+        if sys.platform == "win32" and not Path(bash).exists():
+            self.skipTest("Git Bash is not installed (WSL bash is not a local shell)")
+        r = subprocess.run([bash, "-n"], input=frame_macview.LAUNCH.encode("utf-8"), capture_output=True)
        self.assertEqual(r.returncode, 0, r.stderr)

    def test_show_checks_the_source_before_anything_else(self):
@@ -9,7 +9,7 @@ import subprocess
 import unittest

 ROOT = pathlib.Path(__file__).resolve().parents[1]
-STUBS = ['$', 'toggleLive', 'scrollToY', 'scroller', 'loadMacView', 'loadPanels', 'loadPanelSwitcher', 'loadTitles', 'showAndroidTab',
+STUBS = ['$', 'toggleLive', 'scrollToY', 'scroller', 'loadMacView', 'loadPanels', 'loadPanelSwitcher', 'loadBackups', 'loadStorage', 'loadPower', 'loadTitles', 'showAndroidTab',
         'loadAndroid', 'loadDisplays', 'setGameSource', 'requestAnimationFrame']

 RUN = r'''
@@ -0,0 +1,64 @@
+"""Frozen regression trace from the original mac-in-headset Swift controller.
+The 600-state reference was produced at 1b90c64, before the C extraction:
+60 seconds with a slow/congested middle, then recovery. No generated behavior
+from the new implementation is used to calculate the expected digest.
+"""
+import ctypes as C
+import hashlib
+import json
+from pathlib import Path
+import shutil
+import subprocess
+import sys
+import tempfile
+import unittest
+
+ROOT = Path(__file__).resolve().parent.parent
+sys.path.insert(0, str(ROOT / 'ui'))
+from frame_pc_capture import Controller
+
+
+class ControllerTrace(unittest.TestCase):
+    def test_original_mac_congestion_and_recovery(self):
+        cc = shutil.which('cc') or shutil.which('gcc')
+        if not cc:
+            self.skipTest('C compiler not installed; native build jobs cover this trace')
+        with tempfile.TemporaryDirectory() as tmp:
+            path = Path(tmp) / ('trace.dll' if sys.platform == 'win32' else 'trace.so')
+            subprocess.run([cc, '-O2', '-shared', '-fPIC', str(ROOT/'desktop/controller.c'), '-o', str(path)], check=True, capture_output=True)
+            lib = C.CDLL(str(path))
+            sig = {'new': (C.c_void_p, [C.c_int, C.c_int]), 'free': (None, [C.c_void_p]),
+                   'ceiling': (None, [C.c_void_p, C.c_int]), 'value': (C.c_int64, [C.c_void_p, C.c_int]),
+                   'capture': (None, [C.c_void_p, C.c_int64]), 'gate': (C.c_int, [C.c_void_p, C.c_int64, C.c_int]),
+                   'sent': (None, [C.c_void_p, C.c_uint32, C.c_int, C.c_int64]),
+                   'ack': (C.c_int, [C.c_void_p, C.c_uint32, C.c_int64]), 'update': (C.c_int, [C.c_void_p, C.c_int64])}
+            for name, (ret, args) in sig.items():
+                fn = getattr(lib, 'fc_'+name)
+                fn.restype, fn.argtypes = ret, args
+            c = Controller(lib, 60, 8000000)
+            due, states, seq = [], [], 0
+            try:
+                for tick in range(6000):
+                    now = 10000000+tick*10000
+                    for t, s in due:
+                        if t <= now:
+                            c.call('ack', s, now)
+                    due = [(t, s) for t, s in due if t > now]
+                    if tick % 2 == 0:
+                        c.call('capture', now)
+                        if c.call('gate', now, 1):
+                            seq += 1
+                            c.call('sent', seq, 8000 if tick < 1000 or tick > 4000 else 22000, now)
+                            due.append((now+(240000 if 1500 < tick < 3500 else 20000), seq))
+                    if tick % 10 == 0:
+                        c.update(now)
+                        x = c.state()
+                        states.append([x[k] for k in ('target', 'ceiling', 'tier', 'fps', 'inFlight')] +
+                                      [round(x['scale']*100), round(x['baseRtt']*1000), round(x['slack']*1000)])
+                digest = hashlib.sha256(json.dumps(states, separators=(',', ':')).encode()).hexdigest()
+                self.assertEqual(digest, '1932f16aafce5c9157bcd2aba5d90719a366f9999422920aaeae78a6cdec08f6')
+            finally:
+                c.close()
+                if sys.platform == 'win32':
+                    import _ctypes
+                    _ctypes.FreeLibrary(lib._handle)
@@ -0,0 +1,582 @@
+"""PC adapters: grants, input cleanup, launcher reuse and native codec contract.
+Native tests require the bundled libraries; CI sets REQUIRE_NATIVE so a missing
+bundle is a failure, never a silent skip. No desktop consent or GPU is faked as
+successful real-host capture.
+
+The encoding tests need x264, which only CI's own builds bundle (it's GPL, so
+the installer leaves it out). FRAME_PC_REQUIRE_X264=1 makes its absence a
+failure; FRAME_PC_INSTALLER_BUNDLE=1 checks the installer's bundle instead.
+"""
+import ctypes
+import http.client
+import json
+import os
+from pathlib import Path
+import shutil
+import struct
+import subprocess
+import sys
+import threading
+import time
+import unittest
+from unittest import mock
+
+ROOT = Path(__file__).resolve().parent.parent
+sys.path.insert(0, str(ROOT / 'ui'))
+import frame_pc_agent as agent
+import frame_pc_capture as capture
+import frame_pcview
+import frame_macview
+from frame_stream_stats import Stats
+from test_macview import WS
+
+
+class GrantsTests(unittest.TestCase):
+    def test_source_bound_retry_ack_and_stop(self):
+        g = agent.Grants('master')
+        ticket = g.ticket('window:1')
+        self.assertIsNone(g.redeem('window:2', {'t': ticket}))
+        key = g.redeem('window:1', {'t': ticket})
+        self.assertEqual(key, g.redeem('window:1', {'t': ticket}))
+        g.ack(key)
+        self.assertIsNone(g.redeem('window:1', {'t': ticket}))
+        self.assertEqual(key, g.redeem('window:1', {'r': key}))
+        self.assertIsNone(g.redeem('window:2', {'r': key}))
+        g.revoke('window:1')
+        self.assertIsNone(g.redeem('window:1', {'r': key}))
+
+    def test_expiry_and_stop_before_redeem(self):
+        g = agent.Grants('master')
+        with mock.patch.object(agent.time, 'monotonic', return_value=1):
+            ticket = g.ticket('test')
+        with mock.patch.object(agent.time, 'monotonic', return_value=62):
+            self.assertIsNone(g.redeem('test', {'t': ticket}))
+        ticket = g.ticket('test')
+        g.revoke()
+        self.assertIsNone(g.redeem('test', {'t': ticket}))
+
+
+class GatingTests(unittest.TestCase):
+    """Experimental, Windows only, and off until the person turns it on."""
+
+    def view(self):
+        return frame_pcview.PCView(['ssh'], mock.Mock(), 'frame')
+
+    def test_only_windows_gets_the_pc_host(self):
+        for platform, cls in (('win32', frame_pcview.PCView), ('linux', frame_macview.MacView),
+                              ('darwin', frame_macview.MacView)):
+            with mock.patch.object(frame_pcview.sys, 'platform', platform):
+                view = frame_pcview.host_view(['ssh'], mock.Mock(), 'frame')
+            self.assertIs(type(view), cls, platform)
+
+    def test_off_by_default_starts_nothing(self):
+        view = self.view()
+        with mock.patch.object(frame_pcview.sys, 'platform', 'win32'), \
+                mock.patch.object(frame_macview.subprocess, 'Popen', side_effect=AssertionError('started while off')):
+            state = view.state()
+            self.assertEqual(state, {'available': False, 'reason': frame_pcview.OFF, 'host': view.host,
+                                     'experimental': True, 'enabled': False})
+            with self.assertRaises(frame_macview.MacViewError):
+                view.show('window:12')
+        view.run.assert_not_called()
+
+    def test_never_offered_off_windows_even_when_turned_on(self):
+        view = self.view()
+        view.enabled = True
+        with mock.patch.object(frame_pcview.sys, 'platform', 'linux'):
+            self.assertIn('only available on Windows', view.unavailable())
+
+    def test_turning_on_checks_for_the_bundled_libraries(self):
+        view = self.view()
+        missing = mock.Mock(is_file=mock.Mock(return_value=False))
+        with mock.patch.object(frame_pcview.sys, 'platform', 'win32'), \
+                mock.patch.object(frame_pcview, 'LIBRARY', missing):
+            state = view.set_enabled(True)
+        self.assertTrue(state['enabled'])
+        self.assertFalse(state['available'])
+        self.assertIn('libraries are missing', state['reason'])
+
+    def test_turning_off_stops_streams_and_the_helper(self):
+        view = self.view()
+        view.enabled = True
+        agent = mock.Mock()
+        agent.poll.return_value = None
+        view.agent, view.tunnel = agent, mock.Mock()
+        tunnel = view.tunnel
+        tunnel.poll.return_value = None
+        view.stop = mock.Mock()
+        with mock.patch.object(frame_pcview.sys, 'platform', 'win32'):
+            state = view.set_enabled(False)
+        view.stop.assert_called_once_with()
+        agent.stdin.close.assert_called_once()
+        agent.wait.assert_called()
+        tunnel.terminate.assert_called_once()
+        self.assertIsNone(view.agent)
+        self.assertEqual((state['enabled'], state['reason']), (False, frame_pcview.OFF))
+
+    def test_server_enable_action(self):
+        import sandbox  # noqa: F401  (keeps the server off real data and services)
+        import server
+        with mock.patch.object(server, 'macview', frame_macview.MacView(['ssh'], mock.Mock(), 'frame')):
+            with self.assertRaises(server.Failure) as e:
+                server.macview_action({'action': 'enable', 'on': True})
+            self.assertIn('only available on Windows', str(e.exception))
+        view = self.view()
+        view.set_enabled = mock.Mock(return_value={'enabled': True})
+        with mock.patch.object(server, 'macview', view):
+            self.assertEqual(server.macview_action({'action': 'enable', 'on': True}), {'enabled': True})
+            server.macview_action({'action': 'enable', 'on': 'yes'})  # anything but true is off
+        self.assertEqual([c.args for c in view.set_enabled.call_args_list], [(True,), (False,)])
+
+
+class PageTests(unittest.TestCase):
+    page = (ROOT / 'ui' / 'index.html').read_text(encoding='utf-8')
+
+    def test_tool_link_is_windows_only_and_marked_experimental(self):
+        self.assertIn('<a href="#macview" id="pcToolLink" hidden><span>PC in the headset</span>'
+                      '<small>Experimental:', self.page)
+        self.assertIn('$("pcToolLink").hidden = h.mobile || h.os !== "Windows";', self.page)
+        self.assertIn('$("macToolLink").hidden = h.mobile || h.os !== "macOS";', self.page)
+
+    def test_card_says_experimental_and_what_is_unverified(self):
+        self.assertIn('<span class="tag" id="mvTag" hidden>Experimental</span>', self.page)
+        self.assertIn('<input type="checkbox" id="mvPcOn">', self.page)
+        self.assertIn('Tested in a Windows VM; physical PCs, hardware encoding and laser clicks remain unverified.', self.page)
+        self.assertIn('docs/pc-in-headset.md', self.page)
+
+    def test_opt_in_is_remembered_with_the_client_preferences(self):
+        self.assertIn("const keys = ['mvSeparate', 'padUsed', 'pcView']", self.page)
+        prefs = (ROOT / 'app' / 'preferences.js').read_text(encoding='utf-8')
+        self.assertIn('const KEYS = ["mvSeparate", "padUsed", "pcView"];', prefs)
+
+
+class AdapterTests(unittest.TestCase):
+    def test_dxgi_only_bundle_captures_displays_without_optional_wgc_properties(self):
+        p = capture.pipeline(dict(src='display:65537', capture_api='dxgi'), 'win32', 'mfh264enc', 640, 360, 30, 1000000)
+        self.assertIn('monitor-handle=65537', p)
+        self.assertNotIn('capture-api=', p)
+        self.assertNotIn('show-border=', p)
+        self.assertIn('mfh264enc', p)
+        for source in (dict(src='window:42', capture_api='dxgi'),
+                       dict(src='display:42', capture_api='dxgi ! fakesink')):
+            with self.assertRaises(ValueError):
+                capture.pipeline(source, 'win32', 'mfh264enc', 640, 360, 30, 1000000)
+
+    def test_windows_sources_follow_actual_wgc_capabilities(self):
+        for wgc in (False, True):
+            with self.subTest(wgc=wgc):
+                native, windows = mock.Mock(), mock.Mock()
+                native.has_property.return_value = wgc
+                windows.sources.side_effect = lambda: ([dict(src='window:12', w=800, h=600)],
+                                                       [dict(src='display:4', w=1920, h=1080)])
+                with mock.patch.object(agent.sys, 'platform', 'win32'), \
+                        mock.patch.object(agent, 'Windows', return_value=windows):
+                    host = agent.Agent(native, 'test', ROOT/'ui/mac-view.html')
+                wins, displays = host.lists()
+                self.assertEqual(len(wins), int(wgc))
+                self.assertEqual(displays[0]['capture_api'], 'wgc' if wgc else 'dxgi')
+                self.assertEqual(host.source('display:4')['capture_api'], displays[0]['capture_api'])
+                if wgc:
+                    self.assertEqual(host.source('window:12')['capture_api'], 'wgc')
+                    self.assertEqual(host.window_capture_reason, '')
+                else:
+                    with self.assertRaisesRegex(ValueError, 'Individual windows are unavailable'):
+                        host.source('window:12')
+                    self.assertIn('whole screen', host.window_capture_reason)
+                # Synthetic encoder/protocol checks remain available without WGC.
+                self.assertEqual(host.source('test')['src'], 'test')
+
+    def test_pc_card_receives_window_capture_limitation(self):
+        view = frame_pcview.PCView([], lambda *a: None, 'frame')
+        view.enabled = True
+        view.call = mock.Mock(side_effect=lambda path: {
+            '/status': dict(screen=True, accessibility=True, windowCaptureReason=agent.WINDOW_CAPTURE_UNAVAILABLE),
+            '/windows': dict(windows=[]), '/displays': dict(displays=[dict(src='display:4')])}[path])
+        with mock.patch.object(frame_pcview.sys, 'platform', 'win32'), \
+                mock.patch.object(frame_pcview, 'LIBRARY', mock.Mock(is_file=lambda: True)):
+            state = view.state()
+        self.assertTrue(state['available'])
+        self.assertEqual(state['windowCaptureReason'], agent.WINDOW_CAPTURE_UNAVAILABLE)
+        self.assertEqual(state['windows'], [])
+        self.assertEqual(state['displays'], [dict(src='display:4')])
+
+    def test_windows_uses_wgc_and_media_foundation(self):
+        for kind in ('window', 'display'):
+            pipeline = capture.pipeline(dict(src=kind+':42'), 'win32', 'mfh264enc', 640, 360, 30, 1000000)
+            self.assertIn('capture-api=wgc', pipeline)
+            self.assertIn('window-handle=42' if kind == 'window' else 'monitor-handle=42', pipeline)
+            self.assertIn('mfh264enc name=enc low-latency=true bframes=0', pipeline)
+            self.assertNotIn('drop=true', pipeline)
+        with self.assertRaises(ValueError):
+            capture.pipeline(dict(src='window:42 ! fakesink'), 'win32', 'mfh264enc', 640, 360, 30, 1000000)
+
+    def test_linux_uses_only_portal_fd_and_node(self):
+        p = capture.pipeline(dict(src='window:consented', fd=19, node=47), 'linux', 'x264enc', 640, 360, 30, 1000000)
+        self.assertIn('pipewiresrc fd=19 path=47', p)
+        self.assertIn('tune=zerolatency', p)
+        self.assertEqual(capture.dimensions(1920, 1080, 1280), (1280, 720))
+
+    def test_portal_input_clamps_and_releases_held_state(self):
+        native = mock.Mock()
+        native.lib.fc_portal_input.return_value = 1
+        inp = capture.PortalInput(native, dict(portal=123, w=100, h=50))
+        inp.handle(dict(t='m', e='down', b=0, x=2, y=-1))
+        inp.handle(dict(t='k', e='down', key='Control'))
+        inp.release()
+        calls = native.lib.fc_portal_input.call_args_list
+        self.assertEqual(calls[0].args, (123, 0, 99, 0, 0, 0))
+        self.assertIn(mock.call(123, 1, 0, 0, 0x110, 0), calls)
+        self.assertIn(mock.call(123, 3, 0, 0, 0xffe3, 0), calls)
+        self.assertFalse(inp.buttons or inp.keys)
+
+    def test_windows_release_and_negative_monitor_origin(self):
+        host = mock.Mock()
+        host.user.GetSystemMetrics.side_effect = [-1920, 0, 3840, 1080]
+        inp = capture.WindowsInput(host, dict(src='display:4', x=-1920, y=0, w=1920, h=1080))
+        inp.handle(dict(t='m', e='down', b=2, x=0, y=0))
+        self.assertEqual(host.send.call_args_list[0], mock.call(mouse=(0, 0, 0, 0xc001)))
+        inp.handle(dict(t='k', e='down', code='ControlLeft', key='Control'))
+        inp.release()
+        self.assertIn(mock.call(mouse=(0, 0, 0, 0x10)), host.send.call_args_list)
+        self.assertIn(mock.call(key=(162, 0, 2)), host.send.call_args_list)
+
+    def test_refused_windows_focus_never_clicks_the_covering_app(self):
+        host = mock.Mock()
+        host.rect.return_value = (0, 0, 800, 600)
+        host.user.GetForegroundWindow.return_value = 99
+        host.user.SetForegroundWindow.return_value = False
+        inp = capture.WindowsInput(host, dict(src='window:12', w=800, h=600))
+        with self.assertRaisesRegex(RuntimeError, 'could not focus'):
+            inp.handle(dict(t='m', e='down', b=0, x=.5, y=.5))
+        host.send.assert_not_called()
+
+    def test_pc_reuses_launcher_and_namespaces_panel_ids(self):
+        view = frame_pcview.PCView(['ssh'], mock.Mock(return_value='panel created'), 'frame')
+        view.call = mock.Mock(side_effect=lambda path, **kw: {'screen': True, 'ticket': 'one-use', 'streams': []})
+        view.ensure_tunnel = mock.Mock()
+        view.remote_port = 47900
+        view.show('window:12')
+        self.assertEqual(view.run.call_args.kwargs['stdin'], frame_macview.LAUNCH)
+        self.assertNotEqual(frame_macview.panel_id('window:12'), frame_macview.panel_id('window:12', 'windows'))
+        self.assertFalse(view.prefer_usb)
+        with self.assertRaises(frame_macview.MacViewError):
+            view.show('separate:12')
+
+    def test_session_end_releases_native_input_only_once(self):
+        session = object.__new__(agent.Session)
+        session.lock, session.input_lock = threading.RLock(), threading.RLock()
+        session.stop_event = threading.Event()
+        session.ws, session.input = mock.Mock(), mock.Mock()
+        session.released = False
+        session.end()
+        session.end()
+        session.input.release.assert_called_once()
+        self.assertTrue(session.stop_event.is_set())
+
+    def test_idle_source_is_not_a_stall(self):
+        # PipeWire/WGC deliver frames only on damage: a static desktop sends
+        # its first frame and then nothing. That must not end the session.
+        session = object.__new__(agent.Session)
+        session.lock, session.pending = threading.RLock(), {}
+        session.stats = Stats(lambda: 0)
+        session.stats.captured = 1
+        self.assertIsNone(session.stalled(60000000, 0, 0))
+        # A frame that entered the encoder and never came out is a fault.
+        session.pending[5] = dict(cap=0, arr=0, e0=1000000, tier=0, br=0)
+        self.assertIn('encoder', session.stalled(12000000, 0, 0))
+        self.assertIsNone(session.stalled(10000000, 0, 0))
+        # No initial frame at all after the pipeline opened is a fault.
+        session.pending.clear()
+        self.assertIn('capture', session.stalled(12000000, 0, 1))
+        self.assertIsNone(session.stalled(9000000, 0, 1))
+
+    def test_controller_is_inert_after_close(self):
+        lib = mock.Mock()
+        lib.fc_new.return_value = 1234
+        lib.fc_value.return_value = 100
+        controller = capture.Controller(lib, 60, 5000000)
+        controller.close()
+        lib.fc_free.assert_called_once_with(1234)
+        lib.reset_mock()
+        state = controller.state()
+        self.assertEqual((state['fps'], state['target'], state['scale']), (60, 0, 1))
+        self.assertEqual(controller.call('gate', 1, 1), 0)
+        self.assertEqual(controller.update(1), 0)
+        controller.close()
+        self.assertEqual(lib.method_calls, [])  # nothing touched the freed pointer
+
+    def test_library_path_prepend_adds_no_empty_entry(self):
+        env = {}
+        frame_pcview.prepend(env, 'LD_LIBRARY_PATH', '/opt/fc/lib')
+        self.assertEqual(env['LD_LIBRARY_PATH'], '/opt/fc/lib')
+        frame_pcview.prepend(env, 'LD_LIBRARY_PATH', '/x')
+        self.assertEqual(env['LD_LIBRARY_PATH'], '/x' + os.pathsep + '/opt/fc/lib')
+        with mock.patch.dict(os.environ, clear=True):
+            env = frame_pcview.PCView([], lambda *a: None, 'frame').agent_environment()
+        for name in ('PATH', 'LD_LIBRARY_PATH'):
+            parts = env.get(name, 'x').split(os.pathsep)
+            self.assertNotIn('', parts, name)
+
+    def test_malformed_viewer_input_is_dropped_not_fatal(self):
+        session = object.__new__(agent.Session)
+        session.lock, session.input_lock = threading.RLock(), threading.RLock()
+        session.stop_event, session.key_event = threading.Event(), threading.Event()
+        session.src, session.codec, session.key, session.w, session.h = 'display:1', 'h264', 'r', 100, 100
+        session.source = dict(src='display:1', w=100, h=100, portal=1)
+        session.input_enabled, session.released = True, False
+        session.native = mock.Mock()
+        session.native.now.return_value = 0
+        session.controller, session.agent = mock.Mock(), mock.Mock()
+        session.stats = Stats(lambda: 0)
+        session.produce = lambda: None
+        lib = mock.Mock()
+        lib.fc_portal_input.return_value = 1
+        session.input = capture.PortalInput(mock.Mock(lib=lib), session.source)
+        session.ws = mock.Mock()
+        session.ws.receive.side_effect = [
+            dict(t='m', x='left', y=0), dict(t='wheel', dx=[1]), dict(t='k', e='down', key=None, i='x'),
+            dict(t='fd', drop='many'), dict(t='rx', s=[1]), dict(t='m', x=.5, y=.5), ConnectionError('closed')]
+        with self.assertRaises(ConnectionError):
+            session.start()
+        # Every malformed message was skipped; the good move after them still ran.
+        moves = [c.args for c in lib.fc_portal_input.call_args_list if c.args[1] == 0]
+        self.assertAlmostEqual(moves[-1][2], .5*99)
+        self.assertEqual(session.ws.receive.call_count, 7)
+
+    def test_stats_keep_capture_time_and_bound_records(self):
+        stats = Stats(lambda: 10000000)
+        stats.input(dict(t='m', i=1, tv=9999990))
+        f = stats.add(cap=10000001, arr=10000002, e0=10000003, e1=10000004)
+        self.assertEqual(f['echo'], 1)
+        stats.report(dict(t='rx', s=f['s'], r=10000010))
+        stats.report(dict(t='fd', f=[[f['s'], 10000011, 10000012, 10000013]]))
+        self.assertEqual(stats.snapshot(settle=0)['inputs'][0]['frame'], f['s'])
+        for _ in range(4100):
+            stats.add(cap=10000001)
+        self.assertEqual(len(stats.frames), 4096)
+
+
+def x264_bundled():
+    return any((capture.NATIVE / 'lib' / 'gstreamer-1.0').glob('*gstx264*'))
+
+
+def needs_x264(test):
+    def run(self):
+        if not x264_bundled():
+            if os.environ.get('FRAME_PC_REQUIRE_X264') == '1':
+                raise AssertionError('CI required x264 in the native PC bundle (desktop/build.py --with-x264)')
+            raise unittest.SkipTest('x264 is only in CI test bundles, not the installer')
+        return test(self)
+    run.__name__, run.__doc__ = test.__name__, test.__doc__
+    return run
+
+
+class NativeTests(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls):
+        if not capture.LIBRARY.exists():
+            if os.environ.get('FRAME_PC_REQUIRE_NATIVE') == '1':
+                raise AssertionError('CI required native PC libraries but they were not built')
+            raise unittest.SkipTest('native PC libraries not built on this host')
+        cls.token = 'test-' + os.urandom(8).hex()
+        env = frame_pcview.PCView([], lambda *a: None, 'frame').agent_environment()
+        env['FRAME_MAC_VIEW_TOKEN'] = cls.token
+        cls.proc = subprocess.Popen([sys.executable, str(ROOT/'ui/frame_pc_agent.py'), 'serve', '--port', '0',
+            '--page', str(ROOT/'ui/mac-view.html'), '--exit-on-eof'], stdin=subprocess.PIPE, stdout=subprocess.PIPE,
+            stderr=subprocess.PIPE, text=True, env=env)
+        line = cls.proc.stdout.readline()
+        if 'listening' not in line:
+            raise AssertionError('Native agent failed: ' + cls.proc.stderr.read())
+        cls.port = int(line.rsplit(':', 1)[1])
+
+    @classmethod
+    def tearDownClass(cls):
+        cls.proc.stdin.close()
+        try:
+            rc = cls.proc.wait(10)
+        except subprocess.TimeoutExpired:
+            cls.proc.kill()
+            raise AssertionError('Native agent did not stop after EOF')
+        error = cls.proc.stderr.read()
+        cls.proc.stdout.close()
+        cls.proc.stderr.close()
+        if rc:
+            raise AssertionError('Native agent exited %s: %s' % (rc, error))
+
+    def request(self, path, method='GET'):
+        conn = http.client.HTTPConnection('127.0.0.1', self.port, timeout=10)
+        try:
+            conn.request(method, path)
+            response = conn.getresponse()
+            return response.status, response.read()
+        finally:
+            conn.close()
+
+    def tearDown(self):
+        self.request('/close?k='+self.token, 'POST')
+
+    def test_native_property_probe_checks_the_instantiated_element(self):
+        code = """
+from frame_pc_capture import Native
+n = Native()
+assert n.has_property('fakesink', 'sync')
+assert not n.has_property('fakesink', 'not-a-gstreamer-property')
+assert not n.has_property('not-a-gstreamer-element', 'sync')
+"""
+        env = frame_pcview.PCView([], lambda *a: None, 'frame').agent_environment()
+        env['PYTHONPATH'] = str(ROOT/'ui')
+        result = subprocess.run([sys.executable, '-c', code], env=env, capture_output=True, text=True, timeout=15)
+        self.assertEqual(result.returncode, 0, result.stderr)
+
+    @unittest.skipUnless(sys.platform.startswith('linux'), 'Linux PipeWire client libraries')
+    def test_bundled_pipewire_context_needs_no_system_modules(self):
+        # No portal request, remote connection or desktop capture: create and
+        # destroy a private client context to test the dynamically loaded SPA
+        # and protocol modules that ldd cannot discover.
+        code = """
+import ctypes as C, os
+lib = C.CDLL(os.path.join(os.environ['FRAME_PC_NATIVE'], 'lib', 'libpipewire-0.3.so.0'))
+for name, ret, args in [
+    ('pw_init', None, [C.c_void_p, C.c_void_p]),
+    ('pw_main_loop_new', C.c_void_p, [C.c_void_p]),
+    ('pw_main_loop_get_loop', C.c_void_p, [C.c_void_p]),
+    ('pw_context_new', C.c_void_p, [C.c_void_p, C.c_void_p, C.c_size_t]),
+    ('pw_context_find_factory', C.c_void_p, [C.c_void_p, C.c_char_p]),
+    ('pw_context_find_spa_lib', C.c_char_p, [C.c_void_p, C.c_char_p]),
+    ('pw_context_destroy', None, [C.c_void_p]),
+    ('pw_main_loop_destroy', None, [C.c_void_p])]:
+    fn = getattr(lib, name)
+    fn.restype, fn.argtypes = ret, args
+lib.pw_init(None, None)
+loop = lib.pw_main_loop_new(None)
+assert loop, 'bundled SPA loop support did not load'
+context = lib.pw_context_new(lib.pw_main_loop_get_loop(loop), None, 0)
+assert context, 'bundled PipeWire client modules did not load'
+assert lib.pw_context_find_factory(context, b'adapter'), 'video adapter factory is missing'
+# The exported factory is video.adapt, which needs a live follower node to
+# instantiate. Check its configured library and exported factory without
+# pretending a headless context is a consented video stream.
+plugin_name = lib.pw_context_find_spa_lib(context, b'video.adapt')
+assert plugin_name, 'video.adapt has no bundled library mapping'
+plugin = C.CDLL(os.path.join(os.environ['SPA_PLUGIN_DIR'], plugin_name.decode() + '.so'))
+class Factory(C.Structure):
+    _fields_ = [('version', C.c_uint32), ('name', C.c_char_p)]
+plugin.spa_handle_factory_enum.argtypes = [C.POINTER(C.POINTER(Factory)), C.POINTER(C.c_uint32)]
+plugin.spa_handle_factory_enum.restype = C.c_int
+factory, index, names = C.POINTER(Factory)(), C.c_uint32(), []
+while plugin.spa_handle_factory_enum(C.byref(factory), C.byref(index)) > 0:
+    names.append(factory.contents.name)
+assert b'video.adapt' in names, 'bundled SPA video adapter factory is missing'
+lib.pw_context_destroy(context)
+lib.pw_main_loop_destroy(loop)
+"""
+        env = frame_pcview.PCView([], lambda *a: None, 'frame').agent_environment()
+        env['FRAME_PC_NATIVE'] = str(capture.NATIVE)
+        result = subprocess.run([sys.executable, '-c', code], env=env, capture_output=True, text=True, timeout=15)
+        self.assertEqual(result.returncode, 0, result.stderr)
+
+    def test_agent_reports_its_host_and_encoder(self):
+        self.assertEqual(self.request('/status')[0], 403)
+        status, body = self.request('/status?k='+self.token)
+        self.assertEqual(status, 200)
+        data = json.loads(body)
+        if sys.platform == 'win32':
+            self.assertEqual((data['host'], data['encoder']), ('windows', 'mfh264enc'))
+        self.assertEqual(data['streams'], [])
+
+    @unittest.skipUnless(os.environ.get('FRAME_PC_INSTALLER_BUNDLE') == '1', 'checks the installer\'s bundle')
+    def test_installer_bundle_leaves_out_gpl_x264(self):
+        self.assertFalse(x264_bundled())
+        self.assertFalse(list((capture.NATIVE / 'bin').glob('libx264*')))
+        plugins = [p.name for p in (capture.NATIVE / 'lib' / 'gstreamer-1.0').iterdir()]
+        for name in ('mediafoundation', 'd3d11', 'jpeg'):
+            self.assertTrue(any(p.endswith('gst%s.dll' % name) for p in plugins), (name, plugins))
+
+    @needs_x264
+    def test_last_raw_picture_survives_a_closed_gate(self):
+        # A source sends ONE changed frame, then becomes idle. It must reach
+        # the encoder after congestion clears, without needing another update.
+        code = """
+import ctypes as C, sys, time
+from frame_pc_capture import Native, GATE, Encoded, pipeline
+native = Native()
+start = None
+closing = False
+phases = []
+def gate(stage, pts, capture, arrived):
+    global start
+    phases.append(stage)
+    if closing: return -1
+    if start is None: start = time.monotonic()
+    return int(stage == 1 or time.monotonic()-start >= .15)
+callback = GATE(gate)
+p = pipeline(dict(src='test'), sys.platform, 'x264enc', 320, 180, 30, 300000)
+p = p.replace('is-live=true', 'is-live=true num-buffers=1')
+error = C.create_string_buffer(1024)
+handle = native.lib.fc_capture_open(p.encode(), callback, error, len(error))
+assert handle, error.value
+try:
+    frame = Encoded()
+    result = 0
+    deadline = time.monotonic()+5
+    while not result and time.monotonic() < deadline:
+        result = native.lib.fc_capture_pull(handle, C.byref(frame))
+    assert result == 1, native.lib.fc_capture_error(handle)
+    assert frame.key and frame.size > 17
+    assert phases.count(0) == 1 and 2 in phases, phases
+finally:
+    closing = True
+    native.lib.fc_capture_close(handle)
+"""
+        env = frame_pcview.PCView([], lambda *a: None, 'frame').agent_environment()
+        env['PYTHONPATH'] = str(ROOT / 'ui')
+        result = subprocess.run([sys.executable, '-c', code], env=env, capture_output=True, text=True, timeout=10)
+        self.assertEqual(result.returncode, 0, result.stderr)
+
+    @needs_x264
+    def test_auth_and_real_h264_stats(self):
+        self.assertEqual(self.request('/status')[0], 403)
+        status, body = self.request('/ticket?src=test&k='+self.token, 'POST')
+        self.assertEqual(status, 200)
+        ticket = json.loads(body)['ticket']
+        ws = WS(self.port, '/stream?src=test&fps=30&max=640&t='+ticket)
+        try:
+            self.assertEqual(ws.status, 101)
+            key, got, echo = None, 0, False
+            ws.send_text(json.dumps(dict(t='m', e='down', i=7, tv=1, x=.2, y=.3)))
+            deadline = time.monotonic()+10
+            while time.monotonic() < deadline and (got < 5 or not echo):
+                op, data = ws.recv()
+                if op == 1:
+                    m = json.loads(data)
+                    self.assertNotEqual(m.get('t'), 'error', m)
+                    if m.get('t') == 'hello':
+                        key = m['r']
+                        ws.send_text(json.dumps(dict(t='ack')))
+                elif op == 2:
+                    got += 1
+                    seq, echoed = struct.unpack('!II', data[9:17])
+                    now = struct.unpack('!Q', data[1:9])[0]
+                    echo |= echoed == 7
+                    self.assertIn(b'\x00\x00\x00\x01', data[17:])
+                    ws.send_text(json.dumps(dict(t='rx', s=seq, r=now+100)))
+                    ws.send_text(json.dumps(dict(t='fd', f=[[seq, now+200, now+300, now+400]])))
+            self.assertGreaterEqual(got, 5)
+            self.assertTrue(echo)
+            time.sleep(.1)
+            stats = json.loads(self.request('/stats?settle=0&k='+self.token)[1])['streams'][0]
+            self.assertGreater(stats['frames'][0]['e1'], stats['frames'][0]['e0'])
+            self.assertIn('controller', stats)
+            used = WS(self.port, '/stream?src=test&t='+ticket)
+            self.assertEqual(used.status, 403)
+            used.close()
+            self.request('/close?src=test&k='+self.token, 'POST')
+            revoked = WS(self.port, '/stream?src=test&r='+key)
+            self.assertEqual(revoked.status, 403)
+            revoked.close()
+        finally:
+            ws.close()
+
+
+if __name__ == '__main__':
+    unittest.main()
@@ -0,0 +1,256 @@
+"""Desktop observation lifecycle, guarded HTTP API and packaged resource contract."""
+import sandbox  # noqa: F401
+import contextlib
+import io
+import http.client
+import json
+from pathlib import Path
+import subprocess
+import sys
+import tempfile
+import threading
+import time
+from types import SimpleNamespace
+import unittest
+from unittest.mock import patch
+
+ROOT = Path(__file__).resolve().parents[1]
+sys.path.insert(0, str(ROOT / 'ui'))
+import frame_power
+import server
+
+STREAM = frame_power.sampler.stream_report
+
+SAMPLE = {'time': 1, 'elapsedSeconds': 0, 'osBuild': 'test', 'readings': {
+    'battery.watts': {'value': 0, 'unit': 'W', 'source': '/sys/test', 'state': 'available'}},
+    'unavailableGroups': ['fan']}
+
+
+class DesktopPower(unittest.TestCase):
+    def setUp(self):
+        self.observation = frame_power.Observation()
+        self.temp = tempfile.TemporaryDirectory()
+        self.addCleanup(self.temp.cleanup)
+        self.lock = Path(self.temp.name) / 'frame-test.lock'
+        self.patches = [patch.object(frame_power.sampler, 'LOCK', self.lock)]
+        for p in self.patches:
+            p.start()
+            self.addCleanup(p.stop)
+        self.addCleanup(self.observation.shutdown)
+
+    def wait(self):
+        self.observation.thread.join(4)
+        self.assertFalse(self.observation.thread.is_alive())
+
+    def stream(self, program, preset='minute'):
+        real = STREAM
+        def collect(command, payload, count, interval, stop, received, **kw):
+            return real([sys.executable, '-u', '-c', program], '', count, interval, stop, received, **kw)
+        mocked_stream = patch.object(frame_power.sampler, 'stream_report', side_effect=collect)
+        mocked_stream.start()
+        self.addCleanup(mocked_stream.stop)
+        return self.observation.start(preset, ('ssh', '-o', 'HostName=old', 'frame-old'),
+                                      {'alias': 'frame-old', 'deviceId': 'old'})
+
+    def test_complete_exports_match_and_no_background_collection_on_status(self):
+        def collect(command, payload, count, interval, stop, received, **kw):
+            self.assertEqual(count, 12)
+            self.assertEqual(interval, 5)
+            self.assertIn('HostName=old', command)
+            self.assertIn('StrictHostKeyChecking=yes', command)
+            self.assertIn('frame-old', command)
+            self.assertNotIn('pkill', ' '.join(command))
+            for _ in range(count):
+                received(SAMPLE.copy())
+            return {'schemaVersion': 1, 'requestedSamples': count, 'intervalSeconds': interval,
+                    'stopped': None, 'samples': [SAMPLE.copy() for _ in range(count)], 'summary': {}}
+        with patch.object(frame_power.sampler, 'stream_report', side_effect=collect) as run:
+            self.observation.start('minute', ('ssh', '-o', 'HostName=old', 'frame-old'), {'alias': 'frame-old'})
+            self.wait()
+            state = self.observation.status()
+            self.assertEqual((state['received'], state['running'], state['stopped']), (12, False, None))
+            for _ in range(3):
+                self.observation.status()
+            self.assertEqual(run.call_count, 1)
+        report, _ = self.observation.export(state['id'], 'json')
+        self.assertEqual(json.loads(report)['summary']['battery.watts']['mean'], 0)
+        html, _ = self.observation.export(state['id'], 'html')
+        csv, _ = self.observation.export(state['id'], 'csv')
+        self.assertIn('Headset: frame-old', html)
+        self.assertIn('collection.state,Completed', csv)
+        self.assertIn('collection.receivedSamples,12', csv)
+        self.assertIn('battery.watts,0,W', csv)
+
+    def test_stop_keeps_received_sample_and_reaps_only_owned_child(self):
+        real_popen = subprocess.Popen
+        children = []
+        def spawn(*a, **kw):
+            proc = real_popen(*a, **kw)
+            children.append(proc)
+            return proc
+        event = json.dumps({'sample': SAMPLE})
+        with patch.object(frame_power.sampler.subprocess, 'Popen', side_effect=spawn):
+            state = self.stream(f'import sys,time; sys.stdin.read(); print({event!r}, flush=True); time.sleep(30)')
+            deadline = time.monotonic() + 3
+            while self.observation.status()['received'] < 1 and time.monotonic() < deadline:
+                time.sleep(.01)
+            self.assertEqual(self.observation.status()['received'], 1)
+            with self.assertRaisesRegex(ValueError, 'already running'):
+                self.observation.start('minute', ('ssh', 'frame'), {'alias': 'other'})
+            active, _ = self.observation.export(state['id'], 'json')
+            self.assertIn('in progress', json.loads(active)['stopped'])
+            self.observation.stop()
+            self.wait()
+        self.assertIsNotNone(children[0].poll())
+        data, _ = self.observation.export(state['id'], 'json')
+        self.assertEqual(json.loads(data)['samples'], [SAMPLE])
+        self.assertIn('Stopped by user', json.loads(data)['stopped'])
+        csv, _ = self.observation.export(state['id'], 'csv')
+        self.assertIn('incomplete', csv)
+
+    def test_disconnect_and_oversize_keep_partial_and_incomplete(self):
+        for ending in ('sys.exit(255)', 'print("x"*262145, flush=True)'):
+            with self.subTest(ending=ending):
+                event = json.dumps({'sample': SAMPLE})
+                state = self.stream(f'import sys; sys.stdin.read(); print({event!r}, flush=True); {ending}')
+                self.wait()
+                data, _ = self.observation.export(state['id'], 'json')
+                report = json.loads(data)
+                self.assertEqual(report['samples'], [SAMPLE])
+                self.assertTrue(report['stopped'])
+
+    def test_local_lock_preserves_previous_report_and_invalid_inputs_do_not_spawn(self):
+        with patch.object(frame_power.sampler, 'stream_report') as run:
+            self.lock.mkdir()
+            with self.assertRaisesRegex(ValueError, 'Smoke session'):
+                self.observation.start('minute', ('ssh', 'frame'), {'alias': 'frame'})
+            for preset in ('hour', 1000, None):
+                with self.assertRaises(ValueError):
+                    self.observation.start(preset, ('ssh', 'frame'), {'alias': 'frame'})
+            run.assert_not_called()
+        self.assertIsNone(self.observation.status()['id'])
+
+    def test_headset_switch_preserves_original_identity_and_requests_cancel(self):
+        done = threading.Event()
+        def collect(command, payload, count, interval, cancel, received, **kw):
+            received(SAMPLE)
+            done.set()
+            cancel.wait(3)
+            return {'requestedSamples': count, 'intervalSeconds': interval, 'samples': [SAMPLE], 'stopped': None}
+        with patch.object(frame_power.sampler, 'stream_report', side_effect=collect), \
+             patch.object(server, '_power', self.observation):
+            original = server.FRAME, list(server.HOST_OPTS)
+            try:
+                state = self.observation.start('five-minutes', ('ssh', 'old'), {'alias': 'old'})
+                self.assertTrue(done.wait(2))
+                server.route('different-headset', [])
+                self.wait()
+                current = self.observation.status()
+                self.assertEqual(current['headset']['alias'], 'old')
+                self.assertEqual(current['requested'], 60)
+                self.assertIn('Headset switched', current['stopped'])
+                with self.assertRaises(ValueError):
+                    self.observation.export('stale-id', 'html')
+                with self.assertRaises(ValueError):
+                    self.observation.export(state['id'], '../file')
+            finally:
+                server.route(*original)
+
+    def test_http_guards_stale_target_stop_id_and_download_headers(self):
+        httpd = server.ThreadingHTTPServer(('127.0.0.1', 0), server.Handler)
+        thread = threading.Thread(target=httpd.serve_forever, daemon=True)
+        thread.start()
+        conn = http.client.HTTPConnection(*httpd.server_address)
+        def request(method, path, body=None, device=None, key=True):
+            headers = {'X-Frame-UI': server.UI_KEY} if key else {}
+            if device:
+                headers['X-Frame-Device'] = device
+            conn.request(method, path, json.dumps(body) if body is not None else None, headers)
+            r = conn.getresponse()
+            return r.status, dict(r.getheaders()), r.read()
+        try:
+            with patch.object(server, '_power', self.observation), \
+                 patch.object(server, 'LINK', SimpleNamespace(active_device=lambda: {'id': 'new'})), \
+                 patch.object(frame_power.sampler, 'stream_report') as run:
+                for path in ('/api/power', '/api/power/report?id=x&format=html'):
+                    self.assertEqual(request('GET', path, key=False)[0], 403)
+                self.assertEqual(request('POST', '/api/power', {'action': 'start', 'preset': 'minute'}, key=False)[0], 403)
+                for device, expected in ((None, 400), ('old', 409)):
+                    self.assertEqual(request('POST', '/api/power', {'action': 'start', 'preset': 'minute'}, device)[0], expected)
+                run.assert_not_called()
+                self.observation.id = 'test-id'
+                self.observation.report = {'schemaVersion': 1, 'requestedSamples': 12, 'intervalSeconds': 5,
+                                           'headset': {'alias': 'old'}, 'stopped': 'Disconnected', 'samples': [SAMPLE]}
+                status, headers, data = request('GET', '/api/power/report?id=test-id&format=html')
+                self.assertEqual(status, 200)
+                self.assertIn('attachment;', headers['Content-Disposition'])
+                self.assertIn('no-store', headers['Cache-Control'])
+                self.assertIn(b'Disconnected', data)
+                self.assertEqual(request('POST', '/api/power', {'action': 'stop', 'id': 'stale'}, 'new')[0], 409)
+                self.assertEqual(request('POST', '/api/power', {'action': 'stop', 'id': 'test-id'}, 'new')[0], 200)
+                received = threading.Event()
+                def collect(command, payload, count, interval, cancel, emit, **kw):
+                    emit(SAMPLE)
+                    received.set()
+                    cancel.wait(3)
+                    return {'schemaVersion': 1, 'requestedSamples': count, 'intervalSeconds': interval,
+                            'samples': [SAMPLE], 'stopped': 'Stopped'}
+                run.side_effect = collect
+                code, _, data = request('POST', '/api/power', {'action': 'start', 'preset': 'minute'}, 'new')
+                self.assertEqual(code, 200)
+                new_id = json.loads(data)['id']
+                self.assertNotEqual(new_id, 'test-id')
+                self.assertTrue(received.wait(2))
+                self.assertEqual(request('GET', '/api/power/report?id=test-id&format=json')[0], 409)
+                self.assertEqual(request('POST', '/api/power', {'action': 'stop', 'id': new_id}, 'new')[0], 200)
+                self.wait()
+                self.assertEqual(self.observation.status()['received'], 1)
+                self.assertEqual(self.observation.status()['headset']['deviceId'], 'new')
+        finally:
+            conn.close()
+            httpd.shutdown()
+            httpd.server_close()
+            thread.join()
+
+    def test_early_remote_smoke_lock_has_structured_reason_without_sensor_reads(self):
+        self.lock.mkdir()
+        output = io.StringIO()
+        with patch.object(frame_power.sampler, 'snapshot') as sensor, contextlib.redirect_stdout(output), contextlib.redirect_stderr(io.StringIO()):
+            self.assertEqual(frame_power.sampler.main(['--probe', '--stream']), 75)
+        sensor.assert_not_called()
+        self.assertIn('Smoke session active', json.loads(output.getvalue())['finished']['stopped'])
+
+    def test_phone_can_import_without_desktop_sampler_resources(self):
+        with tempfile.TemporaryDirectory() as tmp:
+            import os
+            import shutil
+            shutil.copyfile(ROOT / 'ui/frame_power.py', Path(tmp) / 'frame_power.py')
+            program = 'import sys; sys.path.insert(0, sys.argv[1]); import frame_power; assert frame_power.Observation().status()["id"] is None'
+            result = subprocess.run([sys.executable, '-I', '-B', '-c', program, tmp],
+                                    env={**os.environ, 'FRAME_LOCAL': '1'}, capture_output=True, text=True)
+            self.assertEqual(result.returncode, 0, result.stderr)
+
+    def test_packaged_resources_under_isolated_python(self):
+        config = json.loads((ROOT / 'app/package.json').read_text())
+        # Materialize exactly the Python resources selected by electron-builder.
+        with tempfile.TemporaryDirectory() as tmp:
+            resources = Path(tmp)
+            import shutil
+            for spec in config['build']['extraResources']:
+                if spec.get('to') not in ('ui', 'scripts'):
+                    continue
+                source = ROOT / 'app' / spec['from']
+                for pattern in spec['filter']:
+                    for file in source.glob(pattern):
+                        if file.is_file():
+                            dest = resources / spec['to'] / file.name
+                            dest.parent.mkdir(parents=True, exist_ok=True)
+                            shutil.copyfile(file, dest)
+            program = ('import sys; sys.path.insert(0, sys.argv[1]); import frame_power; '
+                       'p=frame_power.sampler.remote_payload(); '
+                       'assert "def snapshot" in p and "def battery" in p; '
+                       'o=frame_power.Observation(); assert not o.status()["running"]')
+            run = subprocess.run([sys.executable, '-I', '-B', '-c', program, str(resources / 'ui')], capture_output=True, text=True)
+            self.assertEqual(run.returncode, 0, run.stderr)
+        run = subprocess.run(['node', '--test', str(ROOT / 'tests/power_desktop.cjs')], capture_output=True, text=True)
+        self.assertEqual(run.returncode, 0, run.stdout + run.stderr)
@@ -0,0 +1,182 @@
+"""Offline HTML exports and streamed transport, with real local child cleanup."""
+import sandbox  # noqa: F401
+import base64
+import contextlib
+import csv
+from html.parser import HTMLParser
+import io
+import json
+from pathlib import Path
+import subprocess
+import sys
+import tempfile
+import unittest
+from unittest import mock
+
+ROOT = Path(__file__).resolve().parents[1]
+sys.path.insert(0, str(ROOT / 'scripts'))
+import frame_power_sample as power
+import frame_power_report as page
+
+
+SAMPLE = {'time': 1, 'elapsedSeconds': 0, 'osBuild': 'test',
+          'readings': {'battery.watts': {'value': 0, 'unit': 'W', 'source': '/sys/battery', 'state': 'available'},
+                       'thermal.<script>alert(1)</script>': {'value': None, 'unit': 'C', 'source': '/sys/temp', 'state': power.UNAVAILABLE}},
+          'unavailableGroups': ['proximity']}
+
+
+class Links(HTMLParser):
+    def __init__(self):
+        super().__init__()
+        self.links = {}
+        self.scripts = 0
+
+    def handle_starttag(self, tag, attrs):
+        attrs = dict(attrs)
+        if tag == 'script':
+            self.scripts += 1
+        if tag == 'a':
+            self.links[attrs['download']] = base64.b64decode(attrs['href'].split(',', 1)[1]).decode()
+
+
+class Report(unittest.TestCase):
+    def collect(self, program, count=1):
+        with contextlib.redirect_stderr(io.StringIO()):
+            return power.stream_report([sys.executable, '-c', program], '', count, 1)
+
+    def test_csv_metadata_headset_alias_is_plain_text_in_spreadsheets(self):
+        for prefix in ('=', '+', '-', '@', ' =', '\t='):
+            with self.subTest(prefix=prefix):
+                alias = prefix + 'HYPERLINK("https://example.invalid")'
+                report = {'headset': {'alias': alias}, 'requestedSamples': 12,
+                          'stopped': 'Stopped', 'samples': []}
+                rows = list(csv.reader(io.StringIO(power.csv_samples(report))))
+                self.assertEqual(len(rows), 4)
+                self.assertEqual([row[5] for row in rows[1:]], ["'" + alias] * 3)
+        report['headset']['alias'] = 'living-room-frame'
+        rows = list(csv.reader(io.StringIO(power.csv_samples(report))))
+        self.assertEqual([row[5] for row in rows[1:]], ['living-room-frame'] * 3)
+
+    def test_completed_stream_preserves_zero_unknown_units_and_downloads(self):
+        event = json.dumps({'sample': SAMPLE})
+        program = f'import sys; sys.stdin.read(); print({event!r}); print(\'{{"finished": {{"stopped": null}}}}\')'
+        report = self.collect(program)
+        self.assertIsNone(report['stopped'])
+        self.assertEqual(report['samples'], [SAMPLE])
+        markup = page.render(report, power.csv_samples(report))
+        parser = Links()
+        parser.feed(markup)
+        self.assertEqual(parser.scripts, 0)
+        self.assertIn('&lt;script&gt;', markup)
+        self.assertIn('<td>0</td>', markup)
+        self.assertIn('<td>Unknown</td>', markup)
+        self.assertIn('<td>C</td>', markup)
+        self.assertIn('scope="row"', markup)
+        self.assertEqual(json.loads(parser.links['frame-power.json']), report)
+        self.assertEqual(parser.links['frame-power.csv'], power.csv_samples(report))
+        self.assertIn(power.UNAVAILABLE, parser.links['frame-power.csv'])
+
+    def test_transport_failure_retains_received_samples_as_incomplete(self):
+        event = json.dumps({'sample': SAMPLE})
+        report = self.collect(f'import sys; sys.stdin.read(); print({event!r}); sys.exit(255)', 2)
+        self.assertEqual(report['samples'], [SAMPLE])
+        self.assertIn('SSH exit 255', report['stopped'])
+
+    def test_lock_stop_retains_samples(self):
+        event = json.dumps({'sample': SAMPLE})
+        end = json.dumps({'finished': {'stopped': 'Smoke session active'}})
+        report = self.collect(f'import sys; sys.stdin.read(); print({event!r}); print({end!r}); sys.exit(75)', 2)
+        self.assertEqual(report['stopped'], 'Smoke session active')
+        self.assertEqual(len(report['samples']), 1)
+
+    def test_user_stop_terminates_only_local_child_and_retains_samples(self):
+        children = []
+        real_popen = subprocess.Popen
+        def spawn(*args, **kwargs):
+            proc = real_popen(*args, **kwargs)
+            children.append(proc)
+            return proc
+        with mock.patch.object(power.subprocess, 'Popen', side_effect=spawn), \
+             mock.patch.object(power.queue.Queue, 'get', side_effect=[json.dumps({'sample': SAMPLE}), KeyboardInterrupt]):
+            report = self.collect('import sys,time; sys.stdin.read(); time.sleep(30)', 2)
+        self.assertEqual(report['samples'], [SAMPLE])
+        self.assertIn('Stopped by user', report['stopped'])
+        self.assertIsNotNone(children[0].poll())
+
+    def test_canceled_launch_does_not_open_ssh(self):
+        import threading
+        stop = threading.Event()
+        stop.set()
+        with mock.patch.object(power.subprocess, 'Popen') as spawn:
+            report = power.stream_report(['ssh', 'frame'], '', 12, 5, stop_event=stop)
+        spawn.assert_not_called()
+        self.assertIn('Stopped before collection', report['stopped'])
+
+    def test_stop_interrupts_child_that_never_reads_payload(self):
+        import threading
+        stop = threading.Event()
+        timer = threading.Timer(0.1, stop.set)
+        timer.start()
+        try:
+            report = power.stream_report([sys.executable, '-c', 'import time; time.sleep(30)'],
+                                         'x' * 1048576, 1, 1, stop_event=stop)
+        finally:
+            timer.cancel()
+        self.assertIn('Stopped', report['stopped'])
+        self.assertEqual(report['samples'], [])
+
+    def test_invalid_stream_is_not_completed(self):
+        report = self.collect('import sys; sys.stdin.read(); print("not json")')
+        self.assertIn('interrupted', report['stopped'])
+        self.assertEqual(report['samples'], [])
+
+    def test_deadline_terminates_child(self):
+        with mock.patch.object(power.time, 'monotonic', side_effect=[0, 40]):
+            report = self.collect('import sys,time; sys.stdin.read(); time.sleep(30)')
+        self.assertIn('Timed out', report['stopped'])
+
+    def test_export_bounds_and_existing_file_fail_before_ssh(self):
+        with tempfile.TemporaryDirectory() as temp:
+            existing = Path(temp) / 'report.html'
+            existing.write_text('keep')
+            for args in (['--html', str(existing)], ['--html', 'new.html', '--count', '11', '--interval', '60'],
+                         ['--html', 'new.html', '--csv']):
+                with mock.patch.object(power.subprocess, 'Popen') as spawn, contextlib.redirect_stderr(io.StringIO()):
+                    with self.assertRaises(SystemExit):
+                        power.main(args)
+                spawn.assert_not_called()
+            self.assertEqual(existing.read_text(), 'keep')
+
+    def test_cli_writes_incomplete_report_and_returns_nonzero(self):
+        report = {'schemaVersion': 1, 'requestedSamples': 2, 'intervalSeconds': 1,
+                  'stopped': 'Stopped by user', 'samples': [SAMPLE], 'summary': power.summarize([SAMPLE])}
+        with tempfile.TemporaryDirectory() as temp:
+            path = Path(temp) / 'report.html'
+            with mock.patch.object(power, 'stream_report', return_value=report), \
+                 mock.patch.object(power, 'LOCK', Path(temp) / 'no-lock'), contextlib.redirect_stderr(io.StringIO()):
+                self.assertEqual(power.main(['--html', str(path)]), 75)
+            self.assertIn('Stopped by user', path.read_text())
+
+    def test_collect_emits_each_sample_before_completion(self):
+        status = mock.Mock()
+        with mock.patch.object(power, 'snapshot', return_value=(SAMPLE.copy(), None)):
+            events = []
+            report = power.collect(status, 1, 1, events.append)
+        self.assertEqual(events, [{'sample': report['samples'][0]}])
+
+    def test_failed_save_preserves_json_on_stdout(self):
+        report = {'schemaVersion': 1, 'requestedSamples': 1, 'intervalSeconds': 1,
+                  'stopped': None, 'samples': [SAMPLE], 'summary': power.summarize([SAMPLE])}
+        with tempfile.TemporaryDirectory() as temp:
+            output = io.StringIO()
+            with mock.patch.object(power, 'stream_report', return_value=report), \
+                 mock.patch.object(power, 'LOCK', Path(temp) / 'no-lock'), \
+                 contextlib.redirect_stderr(io.StringIO()), contextlib.redirect_stdout(output):
+                code = power.main(['--html', str(Path(temp) / 'missing' / 'report.html')])
+            self.assertEqual(code, 1)
+            self.assertEqual(json.loads(output.getvalue()), report)
+
+    def test_premature_completion_is_incomplete_even_with_clean_ssh_exit(self):
+        report = self.collect('import sys; sys.stdin.read(); print(\'{"finished": {"stopped": null}}\')')
+        self.assertIn('Incomplete', report['stopped'])
+        self.assertEqual(report['samples'], [])
@@ -0,0 +1,209 @@
+"""Power sampler fixtures and SSH transport contract; no real device contact."""
+import sandbox  # noqa: F401
+import contextlib
+import csv
+import importlib.util
+import io
+import json
+from pathlib import Path
+import subprocess
+import sys
+import tempfile
+import unittest
+from unittest import mock
+
+ROOT = Path(__file__).resolve().parents[1]
+spec = importlib.util.spec_from_file_location('power_sample', ROOT / 'scripts/frame_power_sample.py')
+power = importlib.util.module_from_spec(spec)
+spec.loader.exec_module(power)
+sys.path.insert(0, str(ROOT / 'ui'))
+import frame_status as status
+
+
+class Sampler(unittest.TestCase):
+    def patch(self, obj, name, **kwargs):
+        p = mock.patch.object(obj, name, **kwargs)
+        result = p.start()
+        self.addCleanup(p.stop)
+        return result
+
+    def fixture(self, files):
+        # Windows cannot create a directory named iio:device8. Keep the
+        # production sysfs spelling in returned paths while using a portable
+        # name inside this temporary fixture tree.
+        def local_path(path):
+            return self.root / str(path).replace('\\', '/').lstrip('/').replace(':', '__COLON__')
+
+        for path, value in files.items():
+            node = local_path(path)
+            node.parent.mkdir(parents=True, exist_ok=True)
+            node.write_text(str(value))
+        actual_glob = power.glob.glob
+        def paths(pattern):
+            return ['/' + Path(p).relative_to(self.root).as_posix().replace('__COLON__', ':')
+                    for p in actual_glob(str(local_path(pattern)))]
+        actual_read = power.read
+        self.patch(power.glob, 'glob', side_effect=paths)
+        self.patch(power, 'read', side_effect=lambda p: actual_read(str(local_path(str(p)))))
+        self.patch(status, 'read', side_effect=lambda p: actual_read(str(local_path(str(p)))))
+        return local_path
+
+    def setUp(self):
+        self.tmp = tempfile.TemporaryDirectory()
+        self.addCleanup(self.tmp.cleanup)
+        self.root = Path(self.tmp.name)
+        p = mock.patch.object(power, 'LOCK', self.root / 'lock')
+        p.start()
+        self.addCleanup(p.stop)
+
+    def test_real_file_units_zero_signed_battery_and_named_sensors(self):
+        h = '/sys/class/hwmon/hwmon88'
+        b = '/sys/class/power_supply/max1720x_bat_7-36'
+        self.fixture({h + '/name': 'max34417_9_10', h + '/power1_label': 'vph',
+                      h + '/power1_input': '4710000',
+                      '/sys/class/hwmon/hwmon3/name': 'slg4ax46073v',
+                      '/sys/class/hwmon/hwmon3/fan1_input': '0',
+                      '/sys/class/hwmon/hwmon3/pwm1': '41',
+                      '/sys/class/thermal/thermal_zone9/type': 'cpu3_top_thermal',
+                      '/sys/class/thermal/thermal_zone9/temp': '45321',
+                      b + '/type': 'Battery', b + '/capacity': '0', b + '/status': 'Discharging',
+                      b + '/voltage_now': '3800000', b + '/current_now': '-1000000',
+                      '/proc/stat': 'cpu  10 0 0 90 0 0 0 0'})
+        sample, ticks = power.snapshot(status, (80, 80))
+        r = sample['readings']
+        self.assertEqual(r['rail.max34417_9_10.vph.power1']['value'], 4.71)
+        self.assertEqual(r['battery.percent']['value'], 0)
+        self.assertEqual(r['battery.watts']['value'], -3.8)
+        self.assertEqual(r['battery.status']['value'], 'Discharging')
+        self.assertEqual(r['fan.slg4ax46073v.fan1_input']['value'], 0)
+        self.assertEqual(r['fan.pwmRaw']['unit'], 'raw')
+        self.assertEqual(r['thermal.cpu3_top_thermal.thermal_zone9']['value'], 45.321)
+        self.assertEqual(r['cpu.percent']['value'], 50)
+        self.assertEqual(ticks, (100, 90))
+        self.assertEqual(sample['unavailableGroups'], ['board', 'charger', 'proximity'])
+
+    def test_missing_and_invalid_values_remain_unavailable(self):
+        self.fixture({'/sys/class/thermal/thermal_zone0/temp': '999999999',
+                      '/sys/class/hwmon/hwmon2/name': 'fan',
+                      '/sys/class/hwmon/hwmon2/fan1_input': '-1'})
+        sample, ticks = power.snapshot(status, None)
+        self.assertIsNone(ticks)
+        self.assertTrue(all(r['value'] is None for r in sample['readings'].values()))
+        self.assertEqual(len(sample['unavailableGroups']), 6)
+        self.assertIn('two valid CPU', sample['readings']['cpu.percent']['state'])
+
+    def test_permission_error_is_unavailable(self):
+        with mock.patch.object(Path, 'read_text', side_effect=PermissionError):
+            self.assertIsNone(power.number('/unreadable'))
+        for value in ('NaN', 'Infinity', '1.5', '', '9' * 5000):
+            with mock.patch.object(power, 'read', return_value=value):
+                self.assertIsNone(power.number('/invalid'))
+
+    def test_iio_units_and_permission_denied_proximity(self):
+        node = '/sys/bus/iio/devices/iio:device8'
+        local_path = self.fixture({node + '/name': 'vcnl4000',
+                      node + '/in_temp_pcba_at_wifi_input': '37500',
+                      node + '/in_current_pm8550b_iin_fb_input': '241671',
+                      '/etc/os-release': 'BUILD_ID=20261015.6141207\n'})
+        # exists() is used only for optional known charger channels and lock.
+        exists = Path.exists
+        with mock.patch.object(Path, 'exists', lambda p: exists(p) if p == power.LOCK
+                               else exists(local_path(str(p)))):
+            sample, _ = power.snapshot(status, None)
+        self.assertEqual(sample['osBuild'], '20261015.6141207')
+        self.assertEqual(sample['readings']['board.iio:device8.in_temp_pcba_at_wifi_input']['value'], 37.5)
+        self.assertEqual(sample['readings']['charger.iio:device8.iin']['value'], 0.241671)
+        self.assertIsNone(sample['readings']['proximity.raw']['value'])
+        self.assertIn('proximity', sample['unavailableGroups'])
+
+    def test_unknown_charging_state_is_not_claimed(self):
+        self.fixture({})
+        with mock.patch.object(status, 'battery', return_value={'status': 'Unknown', 'percent': 50}):
+            r = power.snapshot(status, None)[0]['readings']
+        self.assertIsNone(r['battery.status']['value'])
+        self.assertEqual(r['battery.percent']['value'], 50)
+
+    def test_smoke_lock_prevents_any_sensor_reads(self):
+        power.LOCK.mkdir()
+        with mock.patch.object(status, 'cpu_ticks') as ticks:
+            with self.assertRaisesRegex(RuntimeError, 'Smoke session'):
+                power.snapshot(status, None)
+        ticks.assert_not_called()
+
+    def test_smoke_lock_appearing_between_samples_stops_and_preserves_partial_report(self):
+        self.fixture({'/proc/stat': 'cpu  10 0 0 90 0 0 0 0'})
+        with mock.patch.object(power.time, 'sleep', side_effect=lambda _: power.LOCK.mkdir()):
+            report = power.collect(status, 3, 1)
+        self.assertEqual(len(report['samples']), 1)
+        self.assertIn('Smoke session', report['stopped'])
+        self.assertEqual(report['requestedSamples'], 3)
+
+    def test_summaries_ignore_missing_values_and_keep_state_changes(self):
+        def row(value, unit='W'):
+            return {'value': value, 'unit': unit, 'source': '/sensor', 'state': 'available'}
+        samples = [{'readings': {'rail': row(0), 'state': row('Charging', 'state')}},
+                   {'readings': {'rail': row(None), 'state': row('Full', 'state')}},
+                   {'readings': {'rail': row(6)}}]
+        summary = power.summarize(samples)
+        self.assertEqual(summary['rail'], dict(unit='W', sources=['/sensor'], available=2,
+                                              unavailable=1, min=0, max=6, mean=3, first=0, last=6))
+        self.assertEqual(summary['state']['states'], ['Charging', 'Full'])
+        self.assertEqual(summary['state']['unavailable'], 1)
+
+    def test_csv_quoting_and_unavailable_groups(self):
+        report = {'samples': [{'time': 1, 'elapsedSeconds': 0,
+                              'readings': {'fan,test': {'value': -3.8, 'unit': 'W',
+                                                       'source': '=formula', 'state': 'available'}},
+                              'unavailableGroups': ['thermal']}]}
+        rows = list(csv.reader(io.StringIO(power.csv_samples(report))))
+        self.assertEqual(rows[1][2:6], ['fan,test', '-3.8', 'W', "'=formula"])
+        self.assertEqual(rows[2][-1], power.UNAVAILABLE)
+
+    def test_bounded_arguments_rejected_before_ssh(self):
+        for args in (['--count', '0'], ['--count', '721'], ['--interval', 'nan'],
+                     ['--interval', 'inf'], ['--interval', '0.5'], ['--interval', '61']):
+            with mock.patch.object(power.subprocess, 'run') as run, contextlib.redirect_stderr(io.StringIO()):
+                with self.assertRaises(SystemExit):
+                    power.main(args)
+            run.assert_not_called()
+
+    def test_local_lock_prevents_ssh(self):
+        power.LOCK.mkdir()
+        with mock.patch.object(power.subprocess, 'run') as run, contextlib.redirect_stderr(io.StringIO()):
+            self.assertEqual(power.main([]), 75)
+        run.assert_not_called()
+
+    def test_ssh_payload_runs_as_module_and_outputs_report(self):
+        report = dict(samples=[], summary={}, stopped=None)
+        def ssh(command, **kwargs):
+            self.assertIn('BatchMode=yes', command)
+            self.assertIn('StrictHostKeyChecking=yes', command)
+            self.assertIn('frame', command)
+            self.assertEqual(command[-4:], ['--count', '2', '--interval', '1.0'])
+            # Execute the exact transmitted source, with main suppressed. Its
+            # frame_status module must be importable without running status().
+            namespace = {'__name__': 'payload_test'}
+            with mock.patch.dict(sys.modules):
+                exec(compile(kwargs['input'], '<ssh-stdin>', 'exec'), namespace)
+                remote = sys.modules['frame_status']
+                self.assertTrue(callable(remote.battery))
+                with mock.patch.object(remote, 'status', side_effect=AssertionError('full status forbidden')), \
+                     mock.patch.object(remote, 'battery', return_value=None), \
+                     mock.patch.object(remote, 'cpu_ticks', return_value=(100, 90)), \
+                     mock.patch.object(namespace['glob'], 'glob', return_value=[]), \
+                     mock.patch.object(namespace['Path'], 'exists', return_value=False):
+                    report.update(namespace['collect'](remote, 1, 1))
+            return subprocess.CompletedProcess(command, 0, json.dumps(report), '')
+        output = io.StringIO()
+        with mock.patch.object(power.subprocess, 'run', side_effect=ssh), contextlib.redirect_stdout(output):
+            self.assertEqual(power.main(['--count', '2', '--interval', '1']), 0)
+        self.assertEqual(len(json.loads(output.getvalue())['samples']), 1)
+
+    def test_ssh_failures_are_not_measurements(self):
+        for result in (subprocess.CompletedProcess([], 255, '', 'offline'),
+                       subprocess.CompletedProcess([], 0, 'bad json', '')):
+            output = io.StringIO()
+            with mock.patch.object(power.subprocess, 'run', return_value=result), \
+                 contextlib.redirect_stdout(output), contextlib.redirect_stderr(io.StringIO()):
+                self.assertNotEqual(power.main([]), 0)
+            self.assertEqual(output.getvalue(), '')
@@ -21,12 +21,13 @@ ROOT = Path(__file__).resolve().parent.parent
 WORKFLOW = ROOT / ".github" / "workflows" / "release.yml"
 FAKEGH = ROOT / "tests" / "fakegh"
 STEP = "- name: Create the draft release"
+UPLOAD_STEP = "- name: Upload to the release"


-def step_script():
+def step_script(step=STEP):
    """The step's `run: |` block, dedented."""
    lines = WORKFLOW.read_text().splitlines()
-    i = next(n for n, line in enumerate(lines) if line.strip() == STEP)
+    i = next(n for n, line in enumerate(lines) if line.strip() == step)
    while lines[i].strip() != "run: |":
        i += 1
    indent = len(lines[i]) - len(lines[i].lstrip())
@@ -87,6 +88,19 @@ class DraftStep(unittest.TestCase):
        [patch] = self.patches(log)
        self.assertEqual(patch[3], "repos/saphid/frame-control/releases/42")

+    def test_a_rerun_reuses_the_same_untagged_draft(self):
+        p, log = self.run_step([release(42, "untagged-abc")])
+        self.assertEqual(p.returncode, 0, p.stderr + p.stdout)
+        self.assertEqual(self.posts(log), [])
+        self.assertEqual(self.patches(log)[0][3], "repos/saphid/frame-control/releases/42")
+
+    def test_ambiguous_drafts_do_not_create_or_patch(self):
+        p, log = self.run_step([release(42, "untagged-abc"), release(43, "untagged-def")])
+        self.assertNotEqual(p.returncode, 0)
+        self.assertIn("expected one release", p.stderr)
+        self.assertEqual(self.posts(log), [])
+        self.assertEqual(self.patches(log), [])
+
    def test_other_releases_alone_mean_a_new_draft(self):
        p, log = self.run_step([release(7, "v9.8.6", "Frame Control 9.8.6", draft=False),
                                release(8, "v9.8.70", "Frame Control 9.8.70")])
@@ -102,5 +116,55 @@ class DraftStep(unittest.TestCase):
        self.assertEqual(self.patches(log), [])


+@unittest.skipUnless(os.name != "nt" and shutil.which("bash") and shutil.which("jq"),
+                     "needs a POSIX bash and jq; Actions runs this step under bash")
+class UploadStep(unittest.TestCase):
+    def run_step(self, releases, error=None):
+        with tempfile.TemporaryDirectory() as tmp:
+            d = Path(tmp)
+            script = step_script(UPLOAD_STEP).replace("${{ matrix.files }}", "artifact.exe artifact.zip")
+            (d / "step.sh").write_text(script)
+            (d / "releases.json").write_text(json.dumps(releases))
+            (d / "artifact.exe").write_bytes(b"installer")
+            (d / "artifact.zip").write_bytes(b"portable")
+            env = dict(os.environ, PATH="%s:%s" % (FAKEGH, os.environ["PATH"]),
+                       FAKEGH_RELEASES=str(d / "releases.json"), FAKEGH_TAGS="v9.8.7",
+                       FAKEGH_LOG=str(d / "log"), FAKEGH_ALLOW_RELEASE_UPLOAD="1",
+                       GITHUB_REF_NAME="v9.8.7", GH_REPO="saphid/frame-control")
+            if error:
+                env["FAKEGH_UPLOAD_ERROR"] = error
+            p = subprocess.run(["bash", "--noprofile", "--norc", "-eo", "pipefail", str(d / "step.sh")],
+                               cwd=d, env=env, capture_output=True, text=True, timeout=30)
+            log = [json.loads(line) for line in (d / "log").read_text().splitlines()]
+            return p, log
+
+    def test_tagged_draft_uses_normal_upload(self):
+        p, log = self.run_step([release(42, "v9.8.7")])
+        self.assertEqual(p.returncode, 0, p.stderr)
+        self.assertEqual(len([c for c in log if c[:2] == ["release", "upload"]]), 1)
+        self.assertFalse(any(c[:3] == ["api", "-X", "PATCH"] for c in log))
+
+    def test_untagged_draft_is_reassociated_then_uploaded(self):
+        p, log = self.run_step([release(42, "untagged-abc")])
+        self.assertEqual(p.returncode, 0, p.stderr)
+        self.assertEqual(len([c for c in log if c[:2] == ["release", "upload"]]), 2)
+        patches = [c for c in log if c[:3] == ["api", "-X", "PATCH"]]
+        self.assertEqual(len(patches), 1)
+        self.assertIn("repos/saphid/frame-control/releases/42", patches[0])
+        self.assertIn("tag_name=v9.8.7", patches[0])
+
+    def test_ambiguous_untagged_drafts_are_not_changed(self):
+        p, log = self.run_step([release(42, "untagged-abc"), release(43, "untagged-def")])
+        self.assertNotEqual(p.returncode, 0)
+        self.assertIn("expected one matching draft", p.stderr)
+        self.assertFalse(any(c[:3] == ["api", "-X", "PATCH"] for c in log))
+
+    def test_other_upload_failures_do_not_patch_draft(self):
+        p, log = self.run_step([release(42, "v9.8.7")], error="network unavailable")
+        self.assertNotEqual(p.returncode, 0)
+        self.assertIn("network unavailable", p.stderr)
+        self.assertFalse(any(c[:3] == ["api", "-X", "PATCH"] for c in log))
+
+
 if __name__ == "__main__":
    unittest.main()
@@ -0,0 +1,153 @@
+"""Smoke cleanup against real local Linux processes, never a headset or SSH."""
+import sandbox  # noqa: F401
+import os
+from pathlib import Path
+import shutil
+import shlex
+import signal
+import subprocess
+import sys
+import tempfile
+import unittest
+from unittest import mock
+
+SMOKE = Path(__file__).resolve().parent / 'smoke'
+sys.path.insert(0, str(SMOKE))
+import stop_processes  # noqa: E402
+import frame_smoke  # noqa: E402
+
+
+@unittest.skipUnless(sys.platform == 'linux' and hasattr(os, 'pidfd_open'), 'Linux pidfds required')
+class RealProcesses(unittest.TestCase):
+    def setUp(self):
+        self.tmp = tempfile.TemporaryDirectory()
+        self.addCleanup(self.tmp.cleanup)
+        self.home = Path(self.tmp.name)
+        self.title = self.home / 'devkit-game' / 'fc_smoke_exe'
+        self.title.mkdir(parents=True)
+        self.children = []
+        self.patcher = mock.patch.object(stop_processes.Path, 'home', return_value=self.home)
+        self.patcher.start()
+        self.addCleanup(self.patcher.stop)
+        self.addCleanup(self.reap)
+
+    def reap(self):
+        for child in self.children:
+            if child.poll() is None:
+                child.kill()
+            child.wait(timeout=5)
+
+    def start(self, cwd, *args, ignore=False):
+        code = ('import signal,time; '
+                + ('signal.signal(signal.SIGTERM, signal.SIG_IGN); ' if ignore else '')
+                + 'print("ready", flush=True); time.sleep(60)')
+        child = subprocess.Popen([sys.executable, '-c', code, *args], cwd=cwd,
+                                 stdout=subprocess.PIPE, text=True)
+        self.children.append(child)
+        self.addCleanup(child.stdout.close)
+        self.assertEqual(child.stdout.readline().strip(), 'ready')
+        return child
+
+    def test_deleted_title_process_is_stopped_but_similar_names_survive(self):
+        owned = self.start(self.title)
+        neighbour = self.title.with_name('fc_smoke_exe_other')
+        neighbour.mkdir()
+        other = self.start(neighbour, 'fc_smoke_exe', 'wine', 'proton')
+        shutil.rmtree(self.title)
+        # Reproduces the old success condition: no title remains, yet it runs.
+        self.assertFalse(self.title.exists())
+        self.assertIsNone(owned.poll())
+        def local_target(command, *, input, timeout):
+            return subprocess.run(shlex.split(command), input=input, text=True,
+                                  capture_output=True, check=True, timeout=timeout,
+                                  env={**os.environ, 'HOME': str(self.home)}).stdout
+
+        # Exercise the production SSH command and stdin payload against a local
+        # fake target, including the helper's CLI and JSON result contract.
+        with mock.patch.object(frame_smoke.frame_android, 'ssh', side_effect=local_target):
+            result = frame_smoke.stop_titles({'fc_smoke_exe'})
+        self.assertIn(owned.pid, result['stopped_pids'])
+        self.assertEqual(owned.wait(timeout=5), -signal.SIGTERM)
+        self.assertIsNone(other.poll())
+
+    def test_proton_style_absolute_argument_escalates_without_stopping_shared_wine(self):
+        owned = self.start(self.home, str(self.title / 'fc-smoke-exe.exe'), ignore=True)
+        shared = self.start(self.home, 'wineserver', '-p')
+        quoted = self.start(self.home, 'echo ' + str(self.title / 'fc-smoke-exe.exe'))
+        result = stop_processes.stop(['fc_smoke_exe'], grace=0.2)
+        self.assertIn(owned.pid, result['stopped_pids'])
+        self.assertEqual(owned.wait(timeout=5), -signal.SIGKILL)
+        self.assertIsNone(shared.poll())
+        self.assertIsNone(quoted.poll())
+        self.assertEqual(stop_processes.stop(['fc_smoke_exe']), {'stopped_pids': []})
+
+    def test_unreadable_cwd_does_not_abort_scan_or_hide_readable_argv(self):
+        owned = self.start(self.home, str(self.title / 'fc-smoke-exe.exe'))
+        other = self.start(self.home, 'wineserver')
+        with mock.patch.object(stop_processes.os, 'readlink', side_effect=PermissionError):
+            self.assertTrue(stop_processes.owned(owned.pid, [str(self.title)]))
+            self.assertFalse(stop_processes.owned(other.pid, [str(self.title)]))
+            result = stop_processes.stop(['fc_smoke_exe'], grace=0.2)
+        self.assertIn(owned.pid, result['stopped_pids'])
+        self.assertEqual(owned.wait(timeout=5), -signal.SIGTERM)
+        self.assertIsNone(other.poll())
+
+
+class Safety(unittest.TestCase):
+    def test_non_test_ids_rejected_before_scanning(self):
+        for ids in ([], ['portal2'], ['fc_smoke_exe/../portal2'], ['fc_smoke_custom']):
+            with self.subTest(ids=ids), self.assertRaises(ValueError):
+                stop_processes.stop(ids)
+
+    @unittest.skipUnless(sys.platform == 'linux', 'Linux signalling helper')
+    def test_lost_ownership_after_open_never_signalled(self):
+        with mock.patch.object(stop_processes, 'candidates', side_effect=[[123], [], []]), \
+                mock.patch.object(stop_processes.os, 'pidfd_open', return_value=9, create=True), \
+                mock.patch.object(stop_processes.os, 'close'), \
+                mock.patch.object(stop_processes, 'owned', return_value=False), \
+                mock.patch.object(stop_processes.signal, 'pidfd_send_signal', create=True) as send:
+            self.assertEqual(stop_processes.stop(['fc_smoke_exe'], grace=0), {'stopped_pids': []})
+            send.assert_not_called()
+
+    @unittest.skipUnless(sys.platform == 'linux', 'Linux signalling helper')
+    def test_survivor_is_a_failure(self):
+        with mock.patch.object(stop_processes, 'candidates', return_value=[123]), \
+                mock.patch.object(stop_processes.os, 'pidfd_open', return_value=9, create=True), \
+                mock.patch.object(stop_processes.os, 'close'), \
+                mock.patch.object(stop_processes, 'owned', return_value=True), \
+                mock.patch.object(stop_processes.signal, 'pidfd_send_signal', create=True):
+            with self.assertRaisesRegex(RuntimeError, 'survived cleanup'):
+                stop_processes.stop(['fc_smoke_exe'], grace=0)
+
+    def test_cleanup_scans_even_when_title_already_removed(self):
+        with mock.patch.object(frame_smoke.frame_titles, 'list_titles', return_value=[]), \
+                mock.patch.object(frame_smoke, 'ssh') as ssh, \
+                mock.patch.object(frame_smoke, 'stop_titles', return_value={'stopped_pids': [42]}) as stop:
+            result = frame_smoke.cleanup(frame_smoke.Smoke())
+            self.assertEqual(stop.call_args_list, [mock.call(stop_processes.IDS)] * 2)
+            self.assertEqual(result['process_cleanup'][0]['stopped_pids'], [42])
+            ssh.assert_not_called()
+
+    def test_stop_failure_prevents_file_removal(self):
+        with mock.patch.object(frame_smoke.frame_titles, 'list_titles', return_value=[{'id': 'fc_smoke_exe'}]), \
+                mock.patch.object(frame_smoke, 'ssh') as ssh, \
+                mock.patch.object(frame_smoke, 'stop_titles', side_effect=RuntimeError('still running')):
+            with self.assertRaisesRegex(RuntimeError, 'still running'):
+                frame_smoke.cleanup(frame_smoke.Smoke())
+            ssh.assert_not_called()
+
+    def test_failed_initial_cleanup_prevents_install_and_records_failure(self):
+        with tempfile.TemporaryDirectory() as folder, \
+                mock.patch.object(frame_smoke, 'RESULTS', Path(folder)), \
+                mock.patch.object(frame_smoke.sys, 'argv', ['frame_smoke.py']), \
+                mock.patch.object(frame_smoke.subprocess, 'run', return_value=mock.Mock(returncode=0)), \
+                mock.patch.object(frame_smoke.tempfile, 'mkdtemp', return_value=folder), \
+                mock.patch.object(frame_smoke, 'os_release', return_value={
+                    'BUILD_ID': 'fake', 'VERSION_ID': 'fake', 'VARIANT_ID': 'fake'}), \
+                mock.patch.object(frame_smoke, 'ssh', return_value='yes'), \
+                mock.patch.object(frame_smoke, 'cleanup', side_effect=RuntimeError('cannot stop')), \
+                mock.patch.object(frame_smoke, 'title_cycle') as cycle, \
+                mock.patch('builtins.print'):
+            self.assertEqual(frame_smoke.main(), 1)
+            cycle.assert_not_called()
+            self.assertEqual(len(list(Path(folder).glob('*-fake.json'))), 1)
@@ -0,0 +1,151 @@
+"""Storage inventory uses only local temporary metadata; no headset connection."""
+import sandbox  # noqa: F401
+import http.client
+import json
+from pathlib import Path
+import shutil
+import subprocess
+import sys
+import tempfile
+import threading
+from types import SimpleNamespace
+import unittest
+from unittest.mock import patch
+
+ROOT = Path(__file__).resolve().parents[1]
+sys.path.insert(0, str(ROOT / 'ui'))
+import frame_storage as storage
+import server
+
+
+class Storage(unittest.TestCase):
+    def setUp(self):
+        self.tmp = tempfile.TemporaryDirectory()
+        self.addCleanup(self.tmp.cleanup)
+        self.home = Path(self.tmp.name)
+        self.steam = self.home / '.local/share/Steam'
+        (self.steam / 'steamapps').mkdir(parents=True)
+
+    def write(self, relative, text):
+        path = self.steam / 'steamapps' / relative
+        path.write_text(text)
+        return path
+
+    def app(self, appid, name, size=None):
+        return self.write(f'appmanifest_{appid}.acf', '"AppState" { "appid" "%s" "name" "%s" %s }' %
+                          (appid, name, '' if size is None else '"SizeOnDisk" "%s"' % size))
+
+    def inventory(self):
+        return storage.inventory(self.home, self.steam)
+
+    def test_multilibrary_dedup_sizes_and_read_only(self):
+        extra = self.home / 'other library'
+        (extra / 'steamapps').mkdir(parents=True)
+        self.write('libraryfolders.vdf', '"libraryfolders" { "0" { "path" "%s" } "1" { "path" "%s" } "2" "%s" }' %
+                   (self.steam, extra, extra))
+        self.app(1, 'Game', '400')
+        self.app(2, 'Proton 10', '100')
+        self.app(3, 'Unknown')
+        self.app(4, 'Zero', '0')
+        self.app(5, 'Bad', '-10')
+        (extra / 'steamapps/appmanifest_9.acf').write_text('"AppState" { "appid" "9" "name" "Other" "SizeOnDisk" "200" }')
+        before = {p: p.read_bytes() for p in self.home.rglob('*') if p.is_file()}
+        result = self.inventory()
+        self.assertEqual(result['discovery'], 'ok')
+        self.assertEqual(len(result['libraries']), 2)
+        lib = result['libraries'][0]
+        self.assertEqual((lib['gameBytes'], lib['toolBytes'], lib['recordedBytes'], lib['unknownSizes']), (400, 100, 500, 2))
+        self.assertEqual([a['bytes'] for a in lib['apps']], [400, 100, 0, None, None])
+        self.assertEqual(result['libraries'][1]['recordedBytes'], 200)
+        self.assertEqual(before, {p: p.read_bytes() for p in self.home.rglob('*') if p.is_file()})
+
+    def test_partial_and_corrupt_metadata_never_become_empty_success(self):
+        self.write('libraryfolders.vdf', '"libraryfolders" {')
+        self.app(1, 'Good', '12')
+        self.write('appmanifest_2.acf', '"AppState" { "appid" "2"')
+        self.write('appmanifest_3.acf', '"AppState" { "appid" "9" }')
+        r = self.inventory()
+        self.assertEqual(r['discovery'], 'invalid-metadata')
+        lib = r['libraries'][0]
+        self.assertEqual((lib['state'], lib['recordedBytes'], len(lib['issues'])), ('partial', 12, 2))
+
+    def test_permission_denied_discovery_listing_manifest_and_capacity(self):
+        original = storage.read_vdf
+        self.app(1, 'Game', '10')
+        def read(path):
+            if str(path).endswith('appmanifest_1.acf') or str(path).endswith('libraryfolders.vdf'):
+                raise PermissionError('denied')
+            return original(path)
+        with patch.object(storage, 'read_vdf', side_effect=read), patch.object(storage.os, 'statvfs', side_effect=PermissionError(), create=True):
+            r = self.inventory()
+        self.assertEqual(r['discovery'], 'permission-denied')
+        self.assertEqual(r['home']['state'], 'permission-denied')
+        self.assertIsNone(r['home']['free'])
+        self.assertEqual(r['libraries'][0]['issues'][0]['state'], 'permission-denied')
+        with patch.object(storage.os, 'scandir', side_effect=PermissionError()):
+            self.assertEqual(self.inventory()['libraries'][0]['state'], 'permission-denied')
+
+    def test_disconnected_library_and_missing_discovery(self):
+        r = self.inventory()
+        self.assertEqual(r['discovery'], 'missing')
+        missing = self.home / 'disconnected'
+        self.write('libraryfolders.vdf', '"libraryfolders" { "1" { "path" "%s" } }' % missing)
+        lib = self.inventory()['libraries'][1]
+        self.assertEqual(lib['state'], 'missing')
+        self.assertIsNone(lib['capacity']['total'])
+
+    def test_reserved_capacity_and_shared_filesystem(self):
+        stat = SimpleNamespace(f_blocks=100, f_frsize=1024, f_bavail=10, f_bfree=20)
+        with patch.object(storage.os, 'statvfs', return_value=stat, create=True):
+            r = self.inventory()
+        self.assertEqual((r['home']['total'], r['home']['free'], r['home']['used']), (102400, 10240, 81920))
+        self.assertEqual(r['home']['filesystem'], r['libraries'][0]['capacity']['filesystem'])
+
+    def test_keyvalues_comments_escaping_and_limits(self):
+        path = self.write('parse.vdf', '// comment\n"root" { "name" "A \\"quote\\"" "nested" { "size" "42" } }')
+        self.assertEqual(storage.read_vdf(path)['root']['name'], 'A "quote"')
+        path.write_text('"root" { "name" "}" }')
+        self.assertEqual(storage.read_vdf(path)['root']['name'], '}')
+        for bad in ['"a" {', '"a" "1" "a" "2"', '"a" }', 'garbage', '"a" {"b" "c"}}']:
+            path.write_text(bad)
+            with self.assertRaises(ValueError):
+                storage.read_vdf(path)
+        path.write_text('x' * (storage.MAX_TEXT + 1))
+        with self.assertRaises(ValueError):
+            storage.read_vdf(path)
+
+    def test_http_probe_is_guarded_and_read_only(self):
+        httpd = server.ThreadingHTTPServer(('127.0.0.1', 0), server.Handler)
+        thread = threading.Thread(target=httpd.serve_forever, daemon=True)
+        thread.start()
+        try:
+            with patch.object(server, 'ssh', return_value=json.dumps(self.inventory())) as ssh:
+                conn = http.client.HTTPConnection(*httpd.server_address)
+                conn.request('GET', '/api/storage')
+                response = conn.getresponse()
+                self.assertEqual(response.status, 403)
+                response.read()
+                ssh.assert_not_called()
+                conn.request('GET', '/api/storage', headers={'X-Frame-UI': server.UI_KEY})
+                response = conn.getresponse()
+                self.assertEqual(response.status, 200)
+                self.assertIn('libraries', json.loads(response.read()))
+                self.assertEqual(ssh.call_args.args, ('python3 -',))
+                self.assertEqual(ssh.call_args.kwargs['stdin'], (ROOT / 'ui/frame_storage.py').read_text())
+                with patch.object(server, 'LINK', SimpleNamespace(active_device=lambda: {'id': 'new-frame'})):
+                    ssh.reset_mock()
+                    conn.request('GET', '/api/storage', headers={'X-Frame-UI': server.UI_KEY, 'X-Frame-Device': 'old-frame'})
+                    response = conn.getresponse()
+                    self.assertEqual(response.status, 409)
+                    response.read()
+                    ssh.assert_not_called()
+                conn.close()
+        finally:
+            httpd.shutdown()
+            httpd.server_close()
+            thread.join()
+
+    @unittest.skipUnless(shutil.which('node'), 'Node required')
+    def test_ui_behavior(self):
+        r = subprocess.run(['node', '--test', str(ROOT / 'tests/storage.cjs')], capture_output=True, text=True)
+        self.assertEqual(r.returncode, 0, r.stdout + r.stderr)
@@ -40,7 +40,9 @@ test('a device switch discards completed install results and the open detail',()
  const f=connectionFixture(),c=f.context;
  Object.assign(c,{pad:{state:'off',queue:[]},padReset(){},sourceState:{jobs:new Map([['test:one',{done:true,result:{package:'app.on.a',game_data:true}}]]),detail:{app:{}},detailRequest:0}});
  f.el('appDetail').open=true;
+  f.el('storageResult').textContent='Old headset storage';
  f.run('onConnection({phase:"connected",device:{id:"b",name:"B"},devices_rev:1,now:0})');
+  assert.match(f.el('storageResult').textContent,/Headset changed/);
  assert.equal(c.sourceState.jobs.size,0);assert.equal(c.sourceState.detail,null);assert.equal(f.el('appDetail').open,false);
 });
 test('only a preview matching current diagnostics consent can be sent or copied',async()=>{
@@ -2,7 +2,7 @@

 Optional store metadata: images {icon, banner, screenshots}, developer,
 description, popularity, open_source, requires_meta_services, frame_tested.
-Only an explicit frame_tested=True produces a working-on-Frame verdict.
+An explicit frame_tested=True or a saved working report produces a working verdict.
 """
 import importlib
 import inspect
@@ -24,6 +24,46 @@ _game_data = {}  # package -> downloaded OBB paths waiting for "Add game data"
 _status = {}
 TIMEOUT = 12
 BROWSE_LIMIT = 300  # apps per source when browsing without a query, before grouping
+compat_reports = None  # optional memory-only snapshot hook; enabled at server start, not import
+
+
+class ReportCache:
+    """Stale-while-refresh reports. Never hold the snapshot lock while loading.
+
+    The loader may block on disk, credentials or the database. Only its daemon
+    worker calls it; readers keep the last complete snapshot, even after errors.
+    """
+    def __init__(self, loader, report_verdict, ttl=60):
+        self.loader, self.report_verdict, self.ttl = loader, report_verdict, ttl
+        self._lock = threading.Lock()
+        self._snapshot, self._at, self._running = {}, None, False
+
+    def read(self):
+        with self._lock:
+            snapshot = self._snapshot
+            if not self._running and (self._at is None or time.monotonic() - self._at >= self.ttl):
+                self._running = True
+                threading.Thread(target=self._refresh, daemon=True).start()
+            return snapshot
+
+    def _refresh(self):
+        try:
+            by = {}
+            for report in self.loader():
+                if report.get('package'):
+                    by.setdefault(report['package'], []).append(report)
+            snapshot = {pkg: v for pkg, rows in by.items() if (v := self.report_verdict(rows))}
+            with self._lock:
+                self._snapshot = snapshot
+        except Exception:
+            pass  # optional evidence must never break search or discard a good snapshot
+        finally:
+            with self._lock:
+                self._at, self._running = time.monotonic(), False
+
+
+def _reports():
+    return compat_reports() if compat_reports else {}


 def modules():
@@ -149,7 +189,7 @@ def fit(entry):
            'reasons': reasons}


-def verdict(entry):
+def verdict(entry, report=None):
    compatibility = fit(entry)
    hints = ' '.join(str(entry.get(k) or '') for k in ('engine', 'vr_engine', 'vr_hints', 'vr_issues')).lower()
    if entry.get('requires_meta_services') is True:
@@ -160,6 +200,12 @@ def verdict(entry):
        return {'label': "This version isn't made for the Frame", 'tone': 'blocked'}
    if 'vrapi' in hints:
        return {'label': "Made for older Quest headsets; won't run on the Frame", 'tone': 'blocked'}
+    if report:
+        kind, _ = report
+        return {'label': {'works': 'Reported working on the Frame',
+                          'maybe': 'Reported issues on the Frame',
+                          'no': 'Reported not working on the Frame'}[kind],
+                'tone': {'works': 'works', 'maybe': 'issues', 'no': 'warning'}[kind]}
    if entry.get('frame_tested') is True:
        return {'label': 'Works on the Frame', 'tone': 'works'}
    if compatibility['installable'] is True:
@@ -167,10 +213,13 @@ def verdict(entry):
    return {'label': 'Not yet checked on the Frame', 'tone': 'unknown'}


-def decorate(entry, shots=12):
+def decorate(entry, shots=12, reports=None):
    """shots: screenshots to offer; a listing card shows three, the detail page all of them."""
    from apk_sources import _images
-    return dict(entry, fit=fit(entry), verdict=verdict(entry), artwork=_images.artwork(entry, shots),
+    report = (reports if reports is not None else _reports()).get(entry.get('package'))
+    evidence = {'verdict': report[0], 'lines': list(report[1])} if report else None
+    return dict(entry, fit=fit(entry), verdict=verdict(entry, report), compat_report=evidence,
+                artwork=_images.artwork(entry, shots),
                **categories.classify(entry))


@@ -191,8 +240,9 @@ def offer_rank(entry):

 def group(entries, query='', vr=None, installable=False, category=None, phone=False):
    groups = {}
+    reports = _reports()  # one complete snapshot for every offer in this response
    for entry in entries:
-        entry = decorate(entry, shots=3)
+        entry = decorate(entry, shots=3, reports=reports)
        if not categories.matches(entry, category, phone):
            continue
        if vr is not None and (entry.get('vr') is True) != vr:  # unknown counts as flat
@@ -310,6 +360,7 @@ def search(query='', vr=None, source=None, installable=False, timeout=TIMEOUT, l

 def warm():
    """Start every enabled source's index download in the background (server start, new repo)."""
+    _reports()  # warm independently of potentially slow source indexes
    from apk_sources import _web
    _web.prune()
    items, _ = registry()
@@ -16,8 +16,8 @@
      description:'Set the default headset output volume or mute it. Changes apply only when you choose Apply or Mute.',
      keywords:'sound speakers headphones loud quiet', special:'audio'},
    {id:'health', category:'device', icon:'pulse', title:'Battery & thermal health', kind:'read', label:'Read-only metrics',
-      description:'Inspect charge, signed battery power, charger capability, battery temperature and health. Heat warnings use the kernel’s own hot and critical trip points.',
-      keywords:'battery charging charger charge time estimate remaining power watts usb health heat temperature thermal sensor', special:'health', links:[['#comfort','Configure battery & heat alerts']]},
+      description:'Inspect charge, signed battery power, charger readings, battery temperature, health and optional capacity / cycle readings. Heat warnings use the kernel’s own hot and critical trip points.',
+      keywords:'battery charging charger charge time estimate remaining power watts usb health cycles capacity wear heat temperature thermal sensor', special:'health', links:[['#comfort','Configure battery & heat alerts']]},
    {id:'storage', category:'device', icon:'files', title:'Storage & memory', kind:'read', label:'Read-only metrics',
      description:'Check free user and system storage plus available RAM. Manage installed apps in their existing libraries, or use SFTP for files.',
      keywords:'disk space root home free total ram memory capacity cleanup usage storage', special:'storage', links:[['#library','Installed games'],['#linuxApps','Linux apps'],['#power','SFTP & remote tools']]},
@@ -144,9 +144,9 @@
    const capacity = b.percent;
    const idle = !!s.power && Number.isFinite(b.watts) && Math.abs(b.watts) < .5;
    const charging = b.status === 'Charging';
-    const full = b.status === 'Full' || (!!s.power && capacity >= 100);
+    const full = b.status === 'Full';
    const batteryState = !sample ? 'Connect to read charge and power' : !s.battery ? 'Battery sensor unavailable' :
-      full ? 'Fully charged' : charging ? 'Charging' : idle ? 'Plugged in · not charging' : s.power ? 'Plugged in · on battery' : 'On battery';
+      full ? 'Fully charged' : charging ? 'Charging' : b.status === 'Not charging' || idle ? (s.power ? 'Plugged in · not charging' : 'Not charging') : b.status === 'Discharging' ? (s.power ? 'Plugged in · on battery' : 'On battery') : 'Charging state unavailable';
    return {
      battery:number(capacity, '%'), batteryDetail:batteryState,
      storage:h ? gib(h.free) : 'Unavailable', storageDetail:h ? `${gib(h.total)} total · user storage` : 'User storage unavailable',
@@ -155,8 +155,11 @@
      rootFree:gib(s.disk?.root?.free), rootTotal:gib(s.disk?.root?.total), memoryAvailable:gib(m?.available),
      fps:number(p.compositorFps, '', 1), fpsDetail:'Compositor FPS · not game FPS',
      power:number(b.watts, ' W', 1), charger:s.power ? `${s.power.type || 'Connected'} · ${number(s.power.watts, ' W', 1)}` : sample ? 'No charger reported' : 'Unavailable',
-      batteryTemp:number(b.tempC, ' °C', 1), batteryHealth:b.health || 'Unavailable',
-      estimate:charging ? (b.timeToFull > 0 ? `${duration(b.timeToFull)} to full` : 'Unavailable') : !full && !idle && b.timeToEmpty > 0 && b.timeToEmpty < 86400 ? `${duration(b.timeToEmpty)} remaining` : 'Unavailable',
+      batteryTemp:number(b.tempC, ' °C', 1), batteryHealth:b.health && b.health !== 'Unknown' ? b.health : 'Unavailable',
+      batterySource:b.source || 'Unavailable', cycles:number(b.cycleCount),
+      fullCapacity:number(b.fullMah, ' mAh', 1), designCapacity:number(b.designMah, ' mAh', 1),
+      capacityHealth:number(b.capacityHealthPercent, '%', 1),
+      estimate:charging ? (b.timeToFull > 0 ? `${duration(b.timeToFull)} to full` : 'Unavailable') : b.status === 'Discharging' && !idle && b.timeToEmpty > 0 && b.timeToEmpty < 86400 ? `${duration(b.timeToEmpty)} remaining` : 'Unavailable',
      wifi:s.wifi?.ssid || 'Unavailable', signal:number(s.wifi?.signal, '%'), ip:s.ip || 'Unavailable',
      uptime:duration(s.uptime), os:s.os?.version || 'Unavailable', build:s.os?.build || 'Unavailable',
      temperature:number(s.temp, ' °C', 1), cpu:number(p.cpuPercent, '%', 1), gpu:number(p.gpuMHz, ' MHz', 1),
@@ -214,7 +217,8 @@
    const metric = (id, label) => `<div><dt>${label}</dt><dd data-cc-metric="${id}">Unavailable</dd></div>`;
    const perf = `<dl class="cc-readings">${[['appFps','Application FPS'],['frame','Compositor period'],['render','Render GPU time'],['compositorCpu','Compositor CPU'],['cpu','System CPU'],['gpu','GPU clock'],['temperature','Hottest sensor']].map(([id,label])=>metric(id,label)).join('')}</dl><p class="cc-note">GPU time is render time, not utilisation. The hottest sensor is not necessarily CPU temperature.</p><p class="cc-note" data-cc-metric="thermal">Trip data unavailable</p>`;
    const audio = `<div class="cc-audio"><label for="ccVolume">Output volume <output id="ccVolumeValue" for="ccVolume">—</output></label><input id="ccVolume" type="range" min="0" max="100" step="1" value="0" disabled><div class="cc-audio-actions"><button class="action small" id="ccApplyVolume" disabled>Apply volume</button><button class="small" id="ccMute" disabled>Mute</button><span id="ccAudioReadback" class="cc-note">Waiting for an audio reading</span></div><p class="cc-note" id="ccAudioResult" role="status"></p></div>`;
-    const health = `<dl class="cc-readings">${[['battery','Charge'],['power','Battery power · signed'],['charger','Charger'],['estimate','Battery estimate'],['batteryTemp','Battery temperature'],['batteryHealth','Battery health']].map(([id,label])=>metric(id,label)).join('')}</dl>`;
+    const batteryNote = 'Read-only. Unavailable means not reported, unreadable or invalid. Health is the driver’s status; full / design capacity is a fuel-gauge estimate, not a diagnosis. Charge limits are unsupported on Frame.';
+    const health = `<dl class="cc-readings">${[['battery','Charge'],['batteryDetail','Charging state'],['power','Battery power · signed'],['charger','Charger'],['estimate','Battery estimate'],['batteryTemp','Battery temperature'],['batteryHealth','Battery health'],['cycles','Charge cycles'],['fullCapacity','Full charge capacity'],['designCapacity','Design capacity'],['capacityHealth','Full / design capacity'],['batterySource','Battery source']].map(([id,label])=>metric(id,label)).join('')}</dl><p class="cc-note">${batteryNote}</p>`;
    const forcequit = `<div class="cc-quit"><div class="cc-audio-actions"><button class="small" type="button" id="ccRunningCheck">Check what’s running</button></div><ul class="cc-running" id="ccRunningList"></ul><p class="cc-note" id="ccRunningResult" role="status"></p></div>`;
    const storage = `<dl class="cc-readings">${[['storage','User storage free'],['rootFree','System storage free'],['rootTotal','System storage total'],['memoryAvailable','Memory available']].map(([id,label])=>metric(id,label)).join('')}</dl>`;
    get('ccCategories').innerHTML = categories.map(([id,label,symbol])=>`<button type="button" data-cc-category="${id}" aria-pressed="${id === 'all'}">${icon(symbol)}<span>${label}</span><span class="cc-category-count"></span></button>`).join('');
@@ -1,13 +1,153 @@
 """Import a local Android backup: one APK and its matching expansion files."""
 import re
 import time
-from pathlib import Path
+from pathlib import Path, PurePosixPath
+import shutil
+import stat
+import struct
+import zipfile
+import zlib
+
+import frame_apk

 import frame_android as android
 import frame_quest as quest

 OBB = re.compile(r'(main|patch)\.[0-9]+\.([A-Za-z0-9_]+(?:\.[A-Za-z0-9_]+)+)\.obb')

+ARCHIVES = {'.xapk', '.apks', '.apkm'}
+MAX_BYTES = 16 * 1024**3
+MAX_FILES = 4096
+METADATA = {'manifest.json', 'info.json', 'icon.png', 'toc.pb', 'meta.sai_v1.json', 'meta.sai_v2.json'}
+WINDOWS_DEVICE = re.compile(r'(?:CON|PRN|AUX|NUL|COM[1-9¹²³]|LPT[1-9¹²³])(?:\..*)?', re.I)
+
+
+def _finder_metadata(name):
+    parts = PurePosixPath(name).parts
+    return bool(parts) and (parts[0] == '__MACOSX' or parts[-1] == '.DS_Store' or parts[-1].startswith('._'))
+
+
+def _members(archive):
+    """Ignore Finder sidecars and strip at most one shared enclosing folder.
+
+    Original member names are still checked by _unpack before extraction.
+    Android itself is a payload root, never an enclosing folder.
+    """
+    members = archive.infolist()
+    names = [m.filename for m in members if not m.is_dir() and not _finder_metadata(m.filename)]
+    first = names[0].split('/')[0] if names else ''
+    prefix = first + '/' if first and first != 'Android' and all(n.startswith(first + '/') for n in names) else ''
+    return [(m, m.filename[len(prefix):] if prefix and m.filename.startswith(prefix) else m.filename)
+            for m in members]
+
+
+def _path(name):
+    parts = PurePosixPath(name.rstrip('/')).parts
+    if (not parts or len(name) > 512 or len(parts) > 32 or name.startswith('/') or '\\' in name or
+            any(p in ('.', '..') or ':' in p or p.rstrip(' .') != p or WINDOWS_DEVICE.fullmatch(p)
+                for p in parts) or
+            '/'.join(parts) != name.rstrip('/')):
+        raise android.FrameError('unsafe path in Android bundle: ' + name[:200])
+    return parts
+
+
+def _kind(name):
+    parts = _path(name)
+    if len(parts) >= 4 and parts[:2] == ('Android', 'data') and android.PKG_RE.fullmatch(parts[2]):
+        raise android.FrameError('Android/data restore is not supported by this importer; choose an APK/OBB-only backup')
+    if name.lower().endswith('.apk'):
+        return 'apk', None, None
+    if name.lower().endswith('.obb'):
+        match = OBB.fullmatch(parts[-1])
+        if not match or not (len(parts) == 1 or
+                len(parts) == 2 and parts[0] == match[2] or
+                len(parts) == 4 and parts[:2] == ('Android', 'obb') and parts[2] == match[2]):
+            raise android.FrameError('OBB needs its standard main/patch.<version>.<package>.obb name and Android/obb/<package> location')
+        return 'obb', match[2], None
+    if (len(parts) == 1 and name in METADATA) or name.lower().endswith('.apk.idsig'):
+        return 'metadata', None, None
+    raise android.FrameError('Unsupported Android bundle file: ' + name + '; no files were installed')
+
+
+def _unpack(path, root, budget):
+    output, seen = [], set()
+    with zipfile.ZipFile(path) as archive:
+        members = _members(archive)
+        if len(members) + budget['files'] > MAX_FILES:
+            raise android.FrameError('Android import has too many files')
+        declared = sum(m.file_size for m, _ in members)
+        if declared + budget['bytes'] > MAX_BYTES or declared > max(0, shutil.disk_usage(root).free - 64 * 1024**2):
+            raise android.FrameError('Android bundle exceeds the size limit or available staging space')
+        # Validate the entire directory before creating any file.
+        for member, name in members:
+            _path(member.filename)
+            key = member.filename.rstrip('/').casefold()
+            mode = stat.S_IFMT(member.external_attr >> 16)
+            if key in seen or member.flag_bits & 1 or mode not in (0, stat.S_IFREG, stat.S_IFDIR):
+                raise android.FrameError('Android bundle contains duplicate paths, encrypted files, links or special files')
+            seen.add(key)
+            if not member.is_dir() and not _finder_metadata(member.filename):
+                _kind(name)
+        for member, name in members:
+            if member.is_dir():
+                continue
+            if _finder_metadata(member.filename):
+                budget['bytes'] += member.file_size
+                continue
+            kind, pkg, rel = _kind(name)
+            target = root.joinpath(*_path(member.filename))
+            target.parent.mkdir(parents=True, exist_ok=True)
+            size = 0
+            with archive.open(member) as src, target.open('xb') as dst:
+                while True:
+                    chunk = src.read(1024 * 1024)
+                    if not chunk:
+                        break
+                    size += len(chunk)
+                    budget['bytes'] += len(chunk)
+                    if budget['bytes'] > MAX_BYTES or size > member.file_size:
+                        raise android.FrameError('Android bundle exceeds the size limit')
+                    dst.write(chunk)
+            if size != member.file_size:
+                raise android.FrameError('Incomplete file in Android bundle: ' + member.filename)
+            if kind != 'metadata':
+                output.append((target, kind, pkg, rel))
+        budget['files'] += len(members)
+    return output
+
+
+def unpack_bundle(path, root):
+    """Extract a single explicit Android bundle into caller-owned staging.
+
+    Reuse the regular backup inspector and installer; no archive metadata is
+    trusted as package identity, and ordinary PC ZIPs keep their existing route.
+    """
+    try:
+        entries = _unpack(Path(path), Path(root), {'bytes': 0, 'files': 0})
+    except android.FrameError:
+        raise
+    except (OSError, ValueError, RuntimeError, EOFError, struct.error, zlib.error,
+            zipfile.BadZipFile) as error:
+        raise android.FrameError('Could not read Android bundle: ' + str(error)) from error
+    paths = [str(local) for local, _, _, _ in entries]
+    if not any(Path(p).suffix.lower() == '.apk' for p in paths):
+        raise android.FrameError('Android bundles must contain one standalone APK and optional OBB files.')
+    return paths
+
+
+def _check_standalone(path):
+    try:
+        with zipfile.ZipFile(path) as archive:
+            elements = frame_apk.manifest_elements(
+                frame_apk._read(archive, 'AndroidManifest.xml', frame_apk.MAX_MANIFEST))
+        if any((tag == 'manifest' and attrs.get('split', (None, None, None))[2]) or
+               (tag == 'application' and attrs.get('isSplitRequired', (None, 0, None))[1])
+               for tag, attrs in elements):
+            raise android.FrameError('This backup needs split APKs. This importer accepts only a standalone APK; '
+                                     'use the documented Quest/CLI split workflow for supported library/asset splits.')
+    except (zipfile.BadZipFile, frame_apk.ApkError, OSError, ValueError, struct.error, IndexError) as error:
+        raise android.FrameError('Could not read APK manifest: ' + str(error)) from error
+

 def inspect(paths, discover=False):
    """Inspect selected files before installing anything. Desktop APK drops can find
@@ -32,6 +172,7 @@ def inspect(paths, discover=False):
        raise android.FrameError('Choose one game at a time. Split APK backups are not supported by this importer.')
    apk = apks[0] if apks else None
    if apk:
+        _check_standalone(apk)
        info = android.apk_info(str(apk))
        try:
            android.check_installable(info)
@@ -12,7 +12,7 @@ import zlib
 # android: attribute resource ids; names can be stripped by shrinkers, ids can't.
 ATTR = {0x01010001: 'label', 0x01010002: 'icon', 0x01010003: 'name',
        0x01010024: 'value', 0x0101021b: 'versionCode', 0x0101021c: 'versionName', 0x0101020c: 'minSdkVersion',
-        0x01010202: 'targetActivity'}
+        0x01010202: 'targetActivity', 0x01010591: 'isSplitRequired'}
 T_REF, T_STRING, T_INT_DEC, T_INT_HEX = 0x01, 0x03, 0x10, 0x11
 # APKs can come from websites (install links), so nothing read from one may be
 # unbounded. zipfile stops at a member's declared size, so checking it is enough.
@@ -0,0 +1,401 @@
+"""Backup and recovery kit: copy game saves, settings and Android app data off the Frame,
+put them back after a factory reset, and get out of Desktop Mode. Python stdlib only.
+
+A backup is a folder in ~/Documents/Frame Control Backups/<YYYY-MM-DD-HHMMSS>/ on this
+computer: one tar.gz per part (saves/, settings/, android/) and manifest.json listing every
+file with its size and SHA-256, the archives' checksums and the headset's BUILD_ID. What the
+parts hold, and what is never copied, is decided on the headset by frame_backup_remote.py.
+Backing up only reads the headset. See docs/backup-and-recovery.md.
+
+CLI: python3 ui/frame_backup.py backup | list | plan NAME | restore NAME PART... | session | game-mode
+"""
+import hashlib
+import json
+import os
+from pathlib import Path
+import re
+import shlex
+import shutil
+import subprocess
+import sys
+import tarfile
+import time
+
+import frame_android as android
+import frame_host
+
+REMOTE = Path(__file__).resolve().parent / 'frame_backup_remote.py'
+NAME = re.compile(r'^\d{4}-\d{2}-\d{2}-\d{6}$')
+ARCHIVE = re.compile(r'^(saves|settings|android)/[A-Za-z0-9._-]{1,200}\.tar\.gz$')
+PART = re.compile(r'^(saves:(\d{1,10}|linux)|settings:(steam|system)|android:[A-Za-z][\w]*(\.[A-Za-z_][\w]*)+)$')
+KINDS = ('saves', 'settings', 'android')
+FORMAT = 1
+# Fixed SteamOS switches only; never execute a command supplied by remote status.
+SELECTORS = ('steamosctl', 'holo-session-select', 'steamos-session-select')
+REASONS = {
+    'not_installed': 'Install the game first, then restore its saves',
+    'no_prefix': 'Start the game once so Proton sets up its folders, then restore',
+    'no_account': 'Sign in to Steam on the headset first',
+    'reference': 'Kept for reference only; copy by hand if you need it',
+    'refused': 'Not restored: the path is not safe to write',
+    'running': 'Close the app first',
+    'damaged': "The backup file doesn't match its checksum",
+    'missing': 'The backup file is missing',
+    'empty': 'Nothing to restore',
+    'unknown': 'Not something this version of Frame Control can restore',
+}
+
+
+class BackupError(android.FrameError):
+    pass
+
+
+def backup_root():
+    return Path(os.environ.get('FRAME_BACKUP_DIR') or Path.home() / 'Documents' / 'Frame Control Backups')
+
+
+def backup_path(name):
+    """The folder for a backup name; refuses anything that isn't one of ours."""
+    if not isinstance(name, str) or not NAME.fullmatch(name):
+        raise BackupError('not a backup name')
+    root = backup_root().resolve()
+    path = (root / name).resolve()
+    if path.parent != root:
+        raise BackupError('not a backup name')
+    return path
+
+
+def archive_name(part):
+    kind, _, rest = part.partition(':')
+    return '%s/%s.tar.gz' % (kind, rest if kind == 'android' else part.replace(':', '-'))
+
+
+def remote_command(cmd, *args):
+    return shlex.join(['python3', '-c', REMOTE.read_text(), cmd, *args])
+
+
+def _ssh(command, src=None, dst=None, timeout=1800):
+    try:
+        # src: bytes, or a file to stream (an archive can be larger than memory).
+        feed = {'input': src} if isinstance(src, bytes) else {
+            'stdin': src if src is not None else subprocess.DEVNULL}
+        result = frame_host.run_ssh(['ssh', *android.SSH_OPTS, android.FRAME, command], **feed,
+                                    stdout=dst if dst is not None else subprocess.PIPE,
+                                    stderr=subprocess.PIPE, timeout=timeout)
+    except subprocess.TimeoutExpired:
+        raise BackupError('the headset took too long to answer')
+    except OSError as error:
+        raise BackupError('could not reach the headset: ' + str(error))
+    if result.returncode:
+        raise BackupError(result.stderr.decode(errors='replace').strip()[-600:] or
+                          'the headset command failed')
+    return result.stdout
+
+
+def remote_json(cmd, *args, src=None, timeout=120):
+    out = _ssh(remote_command(cmd, *args), src=src, timeout=timeout)
+    try:
+        return json.loads(out)
+    except (ValueError, TypeError):
+        raise BackupError('unexpected answer from the headset')
+
+
+def _sha256(path):
+    digest = hashlib.sha256()
+    with open(str(path), 'rb') as src:
+        for chunk in iter(lambda: src.read(1024 * 1024), b''):
+            digest.update(chunk)
+    return digest.hexdigest()
+
+
+def inspect_archive(path):
+    """Every file in one of our part archives, with its size and SHA-256; refuses anything else."""
+    files, names = [], set()
+    try:
+        with tarfile.open(str(path), 'r:gz') as archive:
+            for member in archive:
+                name = member.name
+                parts = name.split('/')
+                if (not member.isfile() or name.startswith('/') or '\\' in name or name in names
+                        or any(p in ('', '.', '..') for p in parts)):
+                    raise BackupError('backup archive has an unsafe entry: %r' % name[:200])
+                names.add(name)
+                digest = hashlib.sha256()
+                src = archive.extractfile(member)
+                for chunk in iter(lambda: src.read(1024 * 1024), b''):
+                    digest.update(chunk)
+                files.append({'path': name, 'bytes': member.size, 'sha256': digest.hexdigest()})
+    except (OSError, EOFError, tarfile.TarError) as error:
+        raise BackupError('could not read the backup archive: ' + str(error))
+    return files
+
+
+def preview():
+    """What a backup would hold, before making one."""
+    plan = remote_json('plan')
+    apps, error = _android_apps()
+    return {'build': plan.get('build'), 'version': plan.get('version'), 'parts': plan.get('parts', []),
+            'android': apps, 'android_error': error, 'excluded': plan.get('excluded', []), 'folder': str(backup_root())}
+
+
+def _android_apps():
+    """(installed Android apps, None) or ([], why they couldn't be listed)."""
+    try:
+        return [{'package': a['package'], 'label': a.get('label') or a['package'],
+                 'running': bool(a.get('running'))} for a in android.list_apps()], None
+    except android.FrameError as error:
+        return [], str(error)
+
+
+def backup(report=lambda stage, percent=None: None, kinds=KINDS, headset=None):
+    kinds = [k for k in KINDS if k in kinds]
+    if not kinds:
+        raise BackupError('choose something to back up')
+    report('Reading what is on the headset', 1)
+    plan = remote_json('plan')
+    parts = [p for p in plan.get('parts', []) if p.get('kind') in kinds and PART.fullmatch(str(p.get('id')))]
+    apps, error = _android_apps() if 'android' in kinds else ([], None)
+    root = backup_root()
+    root.mkdir(parents=True, exist_ok=True)
+    name = time.strftime('%Y-%m-%d-%H%M%S')
+    final = backup_path(name)
+    if final.exists():
+        raise BackupError('a backup was started this second already; try again')
+    # Built under a hidden name and renamed when complete, so a cut-off backup is never listed.
+    staging = root / ('.' + name + '.partial')
+    staging.mkdir()
+    entries = []
+    skipped = [{'id': 'android', 'label': 'Android apps', 'reason': error}] if error else []
+    total = len(parts) + len(apps) or 1
+    try:
+        for i, part in enumerate(parts):
+            report('Copying ' + part['label'], 2 + 90 * i / total)
+            rel = archive_name(part['id'])
+            dest = staging / rel
+            dest.parent.mkdir(parents=True, exist_ok=True)
+            with open(str(dest), 'wb') as dst:
+                _ssh(remote_command('pack', part['id']), dst=dst)
+            files = inspect_archive(dest)
+            entries.append({'id': part['id'], 'kind': part['kind'], 'label': part['label'],
+                            'appid': part.get('appid'), 'archive': rel, 'sha256': _sha256(dest),
+                            'archive_bytes': dest.stat().st_size, 'files': files,
+                            'bytes': sum(f['bytes'] for f in files)})
+            skipped += [{'id': part['id'], 'label': part['label'], 'path': s['path'], 'reason': s['reason']}
+                        for s in part.get('skipped', [])]
+        for j, app in enumerate(apps):
+            report('Copying ' + app['label'] + ' (Android app data)', 2 + 90 * (len(parts) + j) / total)
+            part_id = 'android:' + app['package']
+            if app['running']:
+                skipped.append({'id': part_id, 'label': app['label'], 'reason': 'It was open; close it and back up again'})
+                continue
+            rel = archive_name(part_id)
+            dest = staging / rel
+            dest.parent.mkdir(parents=True, exist_ok=True)
+            try:
+                result = android.backup_data(app['package'], dest)
+            except android.FrameError as error:
+                skipped.append({'id': part_id, 'label': app['label'], 'reason': str(error)})
+                continue
+            entries.append({'id': part_id, 'kind': 'android', 'label': app['label'] + ' (Android app data)',
+                            'package': app['package'], 'instance': result.get('instance'), 'archive': rel,
+                            'sha256': result['sha256'], 'archive_bytes': dest.stat().st_size,
+                            'files': result.get('files'), 'bytes': result.get('bytes')})
+        report('Writing the manifest', 95)
+        manifest = {'format': FORMAT, 'app': 'Frame Control', 'name': name,
+                    'created': time.strftime('%Y-%m-%dT%H:%M:%S%z'),
+                    'headset': {'name': headset or android.FRAME, 'build': plan.get('build'),
+                                'version': plan.get('version')},
+                    'parts': entries, 'skipped': skipped, 'excluded': plan.get('excluded', [])}
+        (staging / 'manifest.json').write_text(json.dumps(manifest, indent=1))
+        os.rename(str(staging), str(final))
+    except BaseException:
+        shutil.rmtree(str(staging), ignore_errors=True)
+        raise
+    size = sum(e['archive_bytes'] for e in entries)
+    message = 'Backed up %d part%s (%s) to %s' % (len(entries), '' if len(entries) == 1 else 's',
+                                                   human(size), final)
+    if skipped:
+        message += '; %d skipped' % len(skipped)
+    return {'message': message, 'name': name, 'path': str(final), 'parts': len(entries),
+            'bytes': size, 'skipped': skipped}
+
+
+def human(n):
+    for unit in ('bytes', 'KB', 'MB', 'GB'):
+        if n < 1000 or unit == 'GB':
+            return ('%d %s' % (n, unit)) if unit == 'bytes' else '%.1f %s' % (n, unit)
+        n /= 1000.0
+
+
+def read_manifest(name):
+    path = backup_path(name)
+    try:
+        manifest = json.loads((path / 'manifest.json').read_text())
+    except (OSError, ValueError):
+        raise BackupError('that backup has no readable manifest')
+    if not isinstance(manifest, dict) or manifest.get('format') != FORMAT or \
+            not isinstance(manifest.get('parts'), list):
+        raise BackupError('that backup was made by a newer or unknown version')
+    for part in manifest['parts']:
+        if (not isinstance(part, dict) or not PART.fullmatch(str(part.get('id'))) or
+                not ARCHIVE.fullmatch(str(part.get('archive'))) or part['archive'] != archive_name(part['id'])):
+            raise BackupError('that backup manifest lists something unexpected')
+    return path, manifest
+
+
+def list_backups():
+    root = backup_root()
+    out = []
+    try:
+        names = sorted((p.name for p in root.iterdir() if NAME.fullmatch(p.name) and p.is_dir()), reverse=True)
+    except OSError:
+        names = []
+    for name in names:
+        try:
+            _, m = read_manifest(name)
+        except BackupError as error:
+            out.append({'name': name, 'error': str(error)})
+            continue
+        out.append({'name': name, 'created': m.get('created'), 'build': (m.get('headset') or {}).get('build'),
+                    'headset': (m.get('headset') or {}).get('name'), 'parts': len(m['parts']),
+                    'bytes': sum(p.get('archive_bytes') or 0 for p in m['parts'])})
+    return {'backups': out, 'folder': str(root)}
+
+
+def restore_plan(name):
+    """Each part of a backup and whether it can go back now; reads only."""
+    path, manifest = read_manifest(name)
+    plans, check = {}, []
+    for part in manifest['parts']:
+        archive = path / part['archive']
+        state = None
+        if not archive.is_file():
+            state = 'missing'
+        elif _sha256(archive) != part.get('sha256'):
+            state = 'damaged'
+        plans[part['id']] = {'id': part['id'], 'kind': part.get('kind'), 'label': part.get('label'),
+                             'bytes': part.get('bytes'), 'status': state}
+        if state is None and part['kind'] != 'android':
+            check.append({'id': part['id'], 'files': [f['path'] for f in part.get('files') or []]})
+    if check:
+        answer = remote_json('check', src=json.dumps({'parts': check}).encode())
+        for result in answer.get('parts', []):
+            plan = plans.get(result.get('id'))
+            if plan:
+                plan.update(status=result.get('status'), replace=result.get('replace', 0),
+                            new=result.get('new', 0), held=result.get('held', {}))
+    android_parts = [p for p in plans.values() if p['kind'] == 'android' and p['status'] is None]
+    if android_parts:
+        installed = {a['package']: a for a in android.list_apps()}
+        for plan in android_parts:
+            app = installed.get(plan['id'].split(':', 1)[1])
+            plan['status'] = 'not_installed' if not app else 'running' if app.get('running') else 'ok'
+            if plan['status'] == 'not_installed':
+                plan['reason'] = 'Install the app first, then restore its data'
+            elif plan['status'] == 'ok':
+                plan['replace'] = 1  # the app's whole private data folder, kept beside it
+    for plan in plans.values():
+        plan.setdefault('reason', REASONS.get(plan['status']) if plan['status'] != 'ok' else None)
+    return {'name': name, 'headset': manifest.get('headset'), 'parts': list(plans.values())}
+
+
+def restore(name, ids, confirmed=False, report=lambda stage, percent=None: None):
+    """Restore the chosen parts that can go back now; the rest are skipped, not failed."""
+    if not isinstance(ids, list) or not ids or not all(isinstance(i, str) and PART.fullmatch(i) for i in ids):
+        raise BackupError('choose what to restore')
+    if confirmed is not True:
+        raise BackupError('confirm the restore first: it replaces files on the headset')
+    path, manifest = read_manifest(name)
+    by_id = {p['id']: p for p in manifest['parts']}
+    plan = {p['id']: p for p in restore_plan(name)['parts']}
+    stamp = time.strftime('%Y%m%d-%H%M%S')
+    done, skipped = [], []
+    for i, part_id in enumerate(ids):
+        part, state = by_id.get(part_id), plan.get(part_id)
+        if not part or not state:
+            skipped.append({'id': part_id, 'reason': 'Not in this backup'})
+            continue
+        if state['status'] != 'ok':
+            skipped.append({'id': part_id, 'label': state['label'], 'reason': state.get('reason') or state['status']})
+            continue
+        report('Restoring ' + state['label'], 5 + 90 * i / len(ids))
+        archive = path / part['archive']
+        try:
+            if part['kind'] == 'android':
+                result = android.restore_data(part_id.split(':', 1)[1], str(archive))
+            else:
+                with open(str(archive), 'rb') as src:
+                    result = remote_json('restore', part_id, stamp, src=src, timeout=1800)
+        except android.FrameError as error:
+            skipped.append({'id': part_id, 'label': state['label'], 'reason': str(error)})
+            continue
+        done.append(dict(result, id=part_id, label=state['label']))
+    message = 'Restored %d part%s' % (len(done), '' if len(done) == 1 else 's')
+    if skipped:
+        message += ', skipped %d' % len(skipped)
+    return {'message': message, 'restored': done, 'skipped': skipped}
+
+
+# ---- Game Mode ---------------------------------------------------------------
+
+def session_status():
+    return remote_json('session', timeout=30)
+
+
+def session_command(selector):
+    """Allow only fixed Game Mode commands, including older devkit selectors."""
+    if selector not in SELECTORS:
+        raise BackupError('this SteamOS build has no session switch command; use the steps in the guide')
+    return shlex.join([selector, 'switch-to-game-mode' if selector == 'steamosctl' else 'gamescope'])
+
+
+def return_to_game_mode(confirmed=False):
+    if confirmed is not True:
+        raise BackupError('confirm first: switching closes the desktop and any apps open in it')
+    state = session_status()
+    if state.get('mode') == 'game':
+        return {'message': 'The headset is already in Game Mode. The desktop you see is a panel: '
+                           'close it from the Steam dashboard.', 'state': state, 'switched': False}
+    if state.get('mode') != 'desktop':
+        # Only a desktop session seen running is switched: the switch restarts the session,
+        # which would close whatever is running in Game Mode.
+        raise BackupError("couldn't tell that the headset is in Desktop Mode, so nothing was changed. "
+                          'Use the manual steps in the guide if it is stuck.')
+    command = session_command(state.get('selector'))
+    try:
+        # The session restarts under it, so the command may not get to answer.
+        _ssh(command, timeout=60)
+    except BackupError as error:
+        if 'took too long' not in str(error):
+            raise BackupError('the switch was refused: %s. Use the manual steps in the guide.' % error)
+    return {'message': 'Asked the headset to return to Game Mode; it restarts its session in a few seconds',
+            'state': state, 'switched': True, 'command': command}
+
+
+def main():
+    cmd, *args = sys.argv[1:] or ['help']
+    try:
+        if cmd == 'backup':
+            r = backup(lambda stage, percent=None: print(stage, file=sys.stderr))
+        elif cmd == 'list':
+            r = list_backups()
+        elif cmd == 'plan' and len(args) == 1:
+            r = restore_plan(args[0])
+        elif cmd == 'restore' and len(args) >= 2:
+            r = restore(args[0], args[1:], confirmed=True)
+        elif cmd == 'session':
+            r = session_status()
+        elif cmd == 'game-mode':
+            r = return_to_game_mode(confirmed=True)
+        else:
+            print(__doc__.strip().splitlines()[-1], file=sys.stderr)
+            return 2
+    except android.FrameError as error:
+        print('error:', error, file=sys.stderr)
+        return 1
+    print(json.dumps(r, indent=1))
+    return 0
+
+
+if __name__ == '__main__':
+    sys.exit(main())
@@ -0,0 +1,478 @@
+"""Backup and restore on the Frame: what to save, packing it and putting it back. Stdlib only.
+
+Runs on the headset as `python3 -c <this file> <command> ...` (ui/frame_backup.py sends it),
+so stdin is free for the archive or file list. Commands:
+
+  plan                 JSON: the headset's build and every part worth saving, with sizes
+  pack PART            a tar.gz of that part's files on stdout (reads only)
+  check                stdin JSON {"parts": [{"id", "files": [paths]}]}: what a restore would do
+  restore PART STAMP   stdin tar.gz: write that part's restorable files, keeping replaced ones
+  session              JSON: Game Mode or Desktop Mode, and the switch command on this image
+
+Paths are relative to the home folder, with '/' separators, everywhere: in archives, in the
+manifest and in `check`. Nothing here deletes a file. `restore` replaces only files named in
+its archive, and first copies each one it replaces under PREVIOUS/<stamp>/.
+"""
+import hashlib
+import json
+import os
+from pathlib import Path, PurePosixPath
+import re
+import shutil
+import subprocess
+import sys
+import tarfile
+import tempfile
+
+# FRAME_BACKUP_HOME: the tests point this at a folder laid out like the Frame's home.
+HOME = Path(os.environ.get('FRAME_BACKUP_HOME') or Path.home())
+STEAM = '.local/share/Steam'
+COMPAT = STEAM + '/steamapps/compatdata'
+PREFIX_USER = 'pfx/drive_c/users/steamuser'
+# Where Windows games keep saves inside a Proton prefix. Steam Cloud covers many games, not all.
+SAVE_DIRS = ('AppData/Roaming', 'AppData/Local', 'AppData/LocalLow', 'Documents', 'Saved Games')
+# Wine's and Windows' own folders inside those: caches, not saves.
+SAVE_SKIP = ('AppData/Local/Temp', 'AppData/Local/Microsoft', 'AppData/Roaming/Microsoft',
+             'AppData/Local/D3DSCache', 'AppData/Local/NVIDIA', 'AppData/Local/CrashDumps',
+             'AppData/LocalLow/Microsoft')
+# Native Linux games: the engines' standard save folders.
+LINUX_SAVES = ('.config/unity3d', '.local/share/godot/app_userdata')
+# Steam settings. Controller layouts go back; the rest is kept so you can look things up.
+STEAM_RESTORE = ('241100/remote/controller_config',)  # under userdata/<account>/
+STEAM_REFERENCE = ('config/localconfig.vdf', 'config/shortcuts.vdf', 'config/grid')
+STEAM_CONTROLLER = STEAM + '/steamapps/common/Steam Controller Configs'  # <account>/config/
+# Desktop settings worth keeping. Steam rewrites steamvr.vrsettings while SteamVR runs, so
+# it's only for reference.
+SYSTEM_RESTORE = ('.config/kdeglobals', '.config/kwinrc', '.config/kxkbrc', '.config/konsolerc',
+                  '.config/dolphinrc')
+SYSTEM_REFERENCE = ('.config/openvr/config/steamvr.vrsettings',)
+PREVIOUS = '.local/share/frame-control/restore-previous'
+MAX_FILE = 2 * 1024 ** 3      # a bigger "save" is a cache or a video; listed as skipped
+MAX_PART = 20 * 1024 ** 3
+MAX_FILES = 100000
+SHORTCUT_IDS = 2 ** 31        # non-Steam shortcuts and Lepton instances use ids above this
+
+# Never copied, whatever folder they turn up in. Checked on every path, packing and restoring.
+SECRET_NAMES = {'steam.token', 'loginusers.vdf', 'registry.vdf', 'config.vdf', 'secrets.env',
+                'authorized_keys', 'known_hosts', 'credentials', 'credentials.json'}
+SECRET_DIRS = {'.ssh', '.gnupg', '.pki', 'keyrings', 'kwalletd', 'cliproxyapi', 'tailscale'}
+SECRET_SUFFIXES = ('.token', '.pem', '.key', '.kwl')
+EXCLUDED = [
+    'Steam sign-in: steam.token, config/config.vdf, loginusers.vdf, registry.vdf, ssfn files',
+    'Keys and passwords: ~/.ssh, ~/.gnupg, keyrings and KWallet, *.token/*.key/*.pem files, '
+    'Tailscale and proxy settings (secrets.env)',
+    'Games themselves, Proton and runtimes (reinstall them from Steam), shader caches, Steam '
+    'Cloud folders under userdata/<account>/<appid>, screenshots (Tools → Capture & Live saves them)',
+    'Android apps themselves and their shared storage (/sdcard); only private app data is saved',
+    'Symbolic links, and single files over 2 GiB',
+]
+
+
+def is_secret(rel):
+    parts = PurePosixPath(rel).parts
+    name = parts[-1].lower() if parts else ''
+    return (name in SECRET_NAMES or name.startswith('ssfn') or name.startswith('id_rsa') or
+            name.startswith('id_ed25519') or name.startswith('id_ecdsa') or
+            name.endswith(SECRET_SUFFIXES) or any(p.lower() in SECRET_DIRS for p in parts[:-1]))
+
+
+def safe_rel(rel):
+    """A relative '/' path with no '..', '.', empty or absolute parts."""
+    if not isinstance(rel, str) or not rel or '\\' in rel or '\0' in rel or rel.startswith('/'):
+        return False
+    parts = rel.split('/')
+    return all(p not in ('', '.', '..') for p in parts) and not re.match(r'^[A-Za-z]:', rel)
+
+
+def _under(rel, root):
+    return rel == root or rel.startswith(root + '/')
+
+
+def _walk(rel_root, skip=()):
+    """Regular files under HOME/rel_root, never following links: [(rel, size)], [skipped]."""
+    files, skipped = [], []
+    base = HOME / rel_root
+    if base.is_symlink() or not base.is_dir():
+        if base.is_file() and not base.is_symlink():
+            return [(rel_root, base.stat().st_size)], skipped
+        return files, skipped
+    for top, dirs, names in os.walk(str(base)):
+        rel_top = PurePosixPath(rel_root, *Path(top).relative_to(base).parts).as_posix()
+        dirs[:] = sorted(d for d in dirs if not os.path.islink(os.path.join(top, d)) and
+                         not any(_under(rel_top + '/' + d, s) for s in skip) and
+                         not is_secret(rel_top + '/' + d + '/x'))
+        for name in sorted(names):
+            path, rel = os.path.join(top, name), rel_top + '/' + name
+            if os.path.islink(path) or is_secret(rel):
+                continue
+            try:
+                st = os.lstat(path)
+            except OSError:
+                continue
+            if not os.path.isfile(path):
+                continue
+            if st.st_size > MAX_FILE:
+                skipped.append({'path': rel, 'reason': 'over 2 GiB'})
+                continue
+            files.append((rel, st.st_size))
+    return files, skipped
+
+
+def _manifest_field(text, key):
+    m = re.search(r'"%s"\s+"([^"]*)"' % key, text)
+    return m.group(1) if m else None
+
+
+def game_name(appid):
+    try:
+        text = (HOME / STEAM / 'steamapps' / ('appmanifest_%s.acf' % appid)).read_text(errors='replace')
+    except OSError:
+        return None
+    return _manifest_field(text, 'name')
+
+
+def accounts():
+    root = HOME / STEAM / 'userdata'
+    try:
+        return sorted(p.name for p in root.iterdir() if p.name.isdigit() and p.is_dir()
+                      and not p.is_symlink() and p.name != '0')
+    except OSError:
+        return []
+
+
+def _prefixes():
+    try:
+        return sorted((p.name for p in (HOME / COMPAT).iterdir()
+                       if p.name.isdigit() and (p / PREFIX_USER).is_dir()), key=int)
+    except OSError:
+        return []
+
+
+def part_roots(part):
+    """(roots to save, roots that a restore may write) for a part id, or None if unknown."""
+    if part.startswith('saves:') and part[6:].isdigit():
+        user = '%s/%s/%s' % (COMPAT, part[6:], PREFIX_USER)
+        roots = tuple(user + '/' + d for d in SAVE_DIRS)
+        return roots, roots
+    if part == 'saves:linux':
+        return LINUX_SAVES, LINUX_SAVES
+    if part == 'settings:steam':
+        save, restore = [], []
+        for acct in accounts():
+            base = '%s/userdata/%s/' % (STEAM, acct)
+            restore += [base + r for r in STEAM_RESTORE] + ['%s/%s/config' % (STEAM_CONTROLLER, acct)]
+            save += [base + r for r in STEAM_REFERENCE]
+        return tuple(save + restore), tuple(restore)
+    if part == 'settings:system':
+        return SYSTEM_RESTORE + SYSTEM_REFERENCE, SYSTEM_RESTORE
+    return None
+
+
+def restore_roots(part, rel):
+    """The restore roots for rel within part; the Steam ones don't depend on today's accounts."""
+    if part == 'settings:steam':
+        m = re.match(r'^(?:%s/userdata/(\d+)/|%s/(\d+)/)' % (re.escape(STEAM), re.escape(STEAM_CONTROLLER)), rel)
+        acct = m and (m.group(1) or m.group(2))
+        if not acct:
+            return ()
+        base = '%s/userdata/%s/' % (STEAM, acct)
+        return tuple(base + r for r in STEAM_RESTORE) + ('%s/%s/config' % (STEAM_CONTROLLER, acct),)
+    roots = part_roots(part)
+    return roots[1] if roots else ()
+
+
+def part_files(part):
+    roots = part_roots(part)
+    if roots is None:
+        raise ValueError('unknown backup part %r' % part)
+    skip = ()
+    if part.startswith('saves:') and part != 'saves:linux':
+        skip = tuple('%s/%s/%s/%s' % (COMPAT, part[6:], PREFIX_USER, s) for s in SAVE_SKIP)
+    files, skipped = [], []
+    for root in roots[0]:
+        f, s = _walk(root, skip)
+        files += f
+        skipped += s
+    return files, skipped
+
+
+def part_label(part):
+    if part == 'saves:linux':
+        return 'Linux game saves (Unity and Godot games)'
+    if part == 'settings:steam':
+        return 'Steam settings and controller layouts'
+    if part == 'settings:system':
+        return 'Desktop and SteamVR settings'
+    appid = part[6:]
+    name = game_name(appid)
+    if name:
+        return name + ' saves'
+    return ('Non-Steam game %s saves' if int(appid) >= SHORTCUT_IDS else 'Game %s saves') % appid
+
+
+def plan():
+    parts = []
+    ids = ['saves:' + a for a in _prefixes()] + ['saves:linux', 'settings:steam', 'settings:system']
+    for part in ids:
+        files, skipped = part_files(part)
+        if not files:
+            continue
+        parts.append({'id': part, 'kind': part.split(':')[0], 'label': part_label(part),
+                      'files': len(files), 'bytes': sum(s for _, s in files), 'skipped': skipped,
+                      'appid': part[6:] if part[6:].isdigit() else None,
+                      'restorable': sum(1 for rel, _ in files
+                                        if any(_under(rel, r) for r in restore_roots(part, rel)))})
+    return {'build': os_release().get('BUILD_ID'), 'version': os_release().get('VERSION_ID'),
+            'parts': parts, 'excluded': EXCLUDED}
+
+
+def os_release():
+    out = {}
+    try:
+        for line in Path(os.environ.get('FRAME_BACKUP_OS_RELEASE') or '/etc/os-release').read_text().splitlines():
+            k, _, v = line.partition('=')
+            out[k.strip()] = v.strip().strip('"')
+    except OSError:
+        pass
+    return out
+
+
+def pack(part, output):
+    files, _ = part_files(part)
+    if len(files) > MAX_FILES or sum(s for _, s in files) > MAX_PART:
+        raise ValueError('this part is too big to back up (over 100,000 files or 20 GiB)')
+    with tarfile.open(fileobj=output, mode='w|gz') as archive:
+        for rel, _ in files:
+            path = HOME / rel
+            try:
+                with open(str(path), 'rb') as src:
+                    st = os.fstat(src.fileno())
+                    member = tarfile.TarInfo(rel)
+                    member.size, member.mtime, member.mode = st.st_size, int(st.st_mtime), st.st_mode & 0o755
+                    archive.addfile(member, src)
+            except OSError:
+                continue  # gone since the walk (a game wrote it); the manifest lists what's in the archive
+
+
+def target_status(part, rel):
+    """None if rel may be restored now, else why not (a short code)."""
+    if is_secret(rel) or not safe_rel(rel):
+        return 'refused'
+    if not any(_under(rel, r) for r in restore_roots(part, rel)):
+        return 'reference'
+    if part.startswith('saves:') and part != 'saves:linux':
+        appid = part[6:]
+        if int(appid) < SHORTCUT_IDS and \
+                not (HOME / STEAM / 'steamapps' / ('appmanifest_%s.acf' % appid)).is_file():
+            return 'not_installed'
+        if not (HOME / COMPAT / appid / PREFIX_USER).is_dir():
+            return 'no_prefix'
+    if part == 'settings:steam':
+        acct = re.search(r'/(\d+)/', rel[len(STEAM):])
+        if not acct or not (HOME / STEAM / 'userdata' / acct.group(1)).is_dir():
+            return 'no_account'
+    # A link anywhere on the way could send the write somewhere else.
+    path = HOME
+    for p in rel.split('/')[:-1]:
+        path = path / p
+        if path.is_symlink() or (path.exists() and not path.is_dir()):
+            return 'refused'
+    if (HOME / rel).is_symlink() or ((HOME / rel).exists() and not (HOME / rel).is_file()):
+        return 'refused'
+    return None
+
+
+def check(request):
+    out = []
+    for item in request.get('parts', []):
+        part, files = item.get('id'), item.get('files') or []
+        if not isinstance(part, str) or part_roots(part) is None:
+            out.append({'id': part, 'status': 'unknown'})
+            continue
+        counts = {}
+        replace = new = 0
+        for rel in files:
+            why = target_status(part, rel)
+            if why:
+                counts[why] = counts.get(why, 0) + 1
+            elif (HOME / rel).exists():
+                replace += 1
+            else:
+                new += 1
+        status = 'ok' if replace + new else next(
+            (c for c in ('not_installed', 'no_prefix', 'no_account', 'reference', 'refused') if c in counts), 'empty')
+        out.append({'id': part, 'status': status, 'replace': replace, 'new': new, 'held': counts})
+    return {'parts': out}
+
+
+def _sha256(path):
+    digest = hashlib.sha256()
+    with open(str(path), 'rb') as src:
+        for chunk in iter(lambda: src.read(1024 * 1024), b''):
+            digest.update(chunk)
+    return digest.hexdigest()
+
+
+def restore(part, stamp, source):
+    if part_roots(part) is None:
+        raise ValueError('unknown backup part %r' % part)
+    if not re.fullmatch(r'\d{8}-\d{6}', stamp):
+        raise ValueError('bad restore stamp')
+    # Spool first: everything is checked before anything is written.
+    spool_dir = HOME / '.cache/frame-control'
+    spool_dir.mkdir(parents=True, exist_ok=True)
+    written, replaced, held = [], [], {}
+    with tempfile.TemporaryDirectory(prefix='restore-', dir=str(spool_dir)) as tmp:
+        spool = Path(tmp) / 'part.tar.gz'
+        with open(str(spool), 'wb') as dst:
+            shutil.copyfileobj(source, dst, 1024 * 1024)
+        todo, names, total = [], set(), 0
+        with tarfile.open(str(spool), 'r:gz') as archive:
+            for member in archive:
+                if not member.isfile() or not safe_rel(member.name) or member.name in names:
+                    raise ValueError('backup has an unsafe, duplicate or non-file entry: %r' % member.name[:200])
+                names.add(member.name)
+                total += member.size
+                if len(names) > MAX_FILES or total > MAX_PART:
+                    raise ValueError('backup part is too big')
+                why = target_status(part, member.name)
+                if why:
+                    held[why] = held.get(why, 0) + 1
+                else:
+                    todo.append(member.name)
+        previous = HOME / PREVIOUS / stamp
+        keep = set(todo)
+        with tarfile.open(str(spool), 'r:gz') as archive:
+            for member in archive:
+                if member.name not in keep:
+                    continue
+                target = HOME / member.name
+                target.parent.mkdir(parents=True, exist_ok=True)
+                part_file = target.parent / ('.frame-restore-%d.part' % os.getpid())
+                with archive.extractfile(member) as src, open(str(part_file), 'wb') as dst:
+                    shutil.copyfileobj(src, dst, 1024 * 1024)
+                os.chmod(str(part_file), (member.mode & 0o755) | 0o600)
+                os.utime(str(part_file), (member.mtime, member.mtime))
+                if target.exists():
+                    if _sha256(target) == _sha256(part_file):
+                        os.unlink(str(part_file))
+                        held['same'] = held.get('same', 0) + 1
+                        continue
+                    keep_copy = previous / member.name
+                    keep_copy.parent.mkdir(parents=True, exist_ok=True)
+                    shutil.copy2(str(target), str(keep_copy))
+                    replaced.append(member.name)
+                os.replace(str(part_file), str(target))
+                written.append(member.name)
+    return {'id': part, 'written': len(written), 'replaced': len(replaced), 'held': held,
+            'previous': (PREVIOUS + '/' + stamp) if replaced else None}
+
+
+# ---- Game Mode and Desktop Mode --------------------------------------------
+#
+# The Frame normally runs gamescope (Game Mode) with Plasma nested inside it as one panel
+# (steamos-nested-desktop). A full Desktop Mode session is SDDM autologin into Plasma
+# instead. Valve's own devkit tools (frame/devkit-utils: steamos-get-status, steamos-delete)
+# read the login preference from these files. It is not the running session.
+
+SDDM_CONFS = ('/etc/sddm.conf.d/zz-steamos-autologin.conf', '/etc/sddm.conf.d/steamos.conf')
+SESSION_TARGETS = ('gamescope-session.target', 'plasma-workspace-wayland.target')
+
+
+def _session_target(unit):
+    """Read the main user's manager, not a nested Plasma session bus over SSH."""
+    runtime = '/run/user/%d' % os.getuid()
+    env = dict(os.environ, XDG_RUNTIME_DIR=runtime,
+               DBUS_SESSION_BUS_ADDRESS='unix:path=%s/bus' % runtime)
+    try:
+        result = subprocess.run(['systemctl', '--user', 'show', unit,
+                                 '--property=LoadState', '--property=ActiveState'],
+                                capture_output=True, text=True, timeout=5, env=env)
+    except (OSError, subprocess.TimeoutExpired):
+        return 'unknown'
+    if result.returncode:
+        return 'unknown'
+    properties = dict(line.split('=', 1) for line in result.stdout.splitlines() if '=' in line)
+    if properties.get('LoadState') == 'not-found':
+        return 'not-found'
+    if properties.get('LoadState') == 'loaded':
+        return properties.get('ActiveState', 'unknown')
+    return 'unknown'
+
+
+def _running(name, full=False):
+    # This module is sent as `python3 -c <source>`: unanchored pgrep -f would
+    # match the script names inside our own source, even when no script runs.
+    pattern = (r'^([^ ]*/)?((ba|da|z)?sh +([^ ]*/)?)?%s( |$)' % re.escape(name)
+               if full else name)
+    try:
+        return subprocess.call(['pgrep', '-f' if full else '-x', pattern], stdout=subprocess.DEVNULL,
+                               stderr=subprocess.DEVNULL) == 0
+    except OSError:
+        return False
+
+
+def session():
+    configured, conf = None, None
+    for path in SDDM_CONFS:
+        try:
+            text = Path(path).read_text(errors='replace')
+        except OSError:
+            continue
+        m = re.search(r'^\s*Session\s*=\s*(\S+)', text, re.M)
+        conf, configured = path, (m.group(1) if m else None)
+        break
+    selector = next((s for s in ('steamosctl', 'holo-session-select', 'steamos-session-select') if shutil.which(s)), None)
+    # On the Frame gamescope's process is named gamescope-wl (seen on build 20261015.6141207),
+    # under the start-gamescope-session script.
+    gamescope = (_running('gamescope') or _running('gamescope-wl') or
+                 _running('start-gamescope-session', full=True))
+    plasma = _running('plasmashell')
+    nested = _running('steamos-nested-desktop', full=True)  # a script: its process name is the shell's
+    targets = {unit: _session_target(unit) for unit in SESSION_TARGETS}
+    game, desktop = (targets[unit] for unit in SESSION_TARGETS)
+    mode = 'unknown'
+    source = 'session-targets'
+    if (game, desktop) == ('active', 'inactive'):
+        mode = 'game'
+    elif (game, desktop) == ('inactive', 'active'):
+        mode = 'desktop'
+    elif game == desktop == 'not-found':
+        # Older images have neither target. A compositor plus Plasma is ambiguous:
+        # Desktop Mode's steamvr-plasma.service also runs gamescope and nested scripts.
+        source = 'legacy-processes'
+        if gamescope and not plasma and not nested:
+            mode = 'game'
+        elif plasma and not gamescope and not nested:
+            mode = 'desktop'
+    return {'mode': mode, 'gamescope': gamescope, 'plasma': plasma, 'nested_desktop': nested,
+            'configured': configured, 'config_file': conf, 'selector': selector,
+            'session_targets': targets, 'mode_source': source}
+
+
+def main(argv):
+    cmd, args = (argv[0] if argv else ''), argv[1:]
+    try:
+        if cmd == 'plan':
+            print(json.dumps(plan()))
+        elif cmd == 'pack' and len(args) == 1:
+            out = sys.stdout.buffer
+            pack(args[0], out)
+            out.flush()
+        elif cmd == 'check':
+            print(json.dumps(check(json.load(sys.stdin))))
+        elif cmd == 'restore' and len(args) == 2:
+            print(json.dumps(restore(args[0], args[1], sys.stdin.buffer)))
+        elif cmd == 'session':
+            print(json.dumps(session()))
+        else:
+            sys.stderr.write('usage: plan | pack PART | check | restore PART STAMP | session\n')
+            return 2
+    except (OSError, ValueError, tarfile.TarError) as error:
+        sys.stderr.write(str(error) + '\n')
+        return 1
+    return 0
+
+
+if __name__ == '__main__':
+    sys.exit(main(sys.argv[1:]))
@@ -25,6 +25,7 @@ when the page asks.

 Python stdlib only. Runs on this computer, never on the Frame.
 """
+from bisect import bisect_right
 import copy
 import hashlib
 import ipaddress
@@ -203,16 +204,33 @@ def probes_summary(probes):
 PLACEHOLDER = re.compile(r"(<(?:host|user|email|ip|mac|steamid|hex|token|ssh-key|pem|url|redacted)>)")


-def hide_hosts(text, hosts, keep=()):
-    """text with each of `hosts` (the headset's own addresses and names) replaced by <host>,
-    longest first and whatever the case, so a bare name like "steamdeck" that the scrubber
-    can't recognise goes too."""
-    keep = {k.lower() for k in keep if k} | KEYWORDS  # a headset called "host" mustn't eat ssh's wording
-    names = sorted({h for h in hosts if h and h.lower() not in keep}, key=len, reverse=True)
-    parts = PLACEHOLDER.split(text)  # never inside a scrubber's own <token> already there
-    for i in range(0, len(parts), 2):
-        for h in names:
-            parts[i] = re.sub(r"(?<![\w.:-])%s(?![\w-]|[:.%%]\w)" % re.escape(h), "<host>", parts[i], flags=re.I)
+def _host_names(hosts, keep=()):
+    keep = {k.lower() for k in keep if k} | KEYWORDS
+    return sorted({h for h in hosts if h and h.lower() not in keep}, key=len, reverse=True)
+
+
+def _host_pattern(name):
+    return r"(?<![\w.:-])%s(?![\w-]|[:.%%]\w)" % re.escape(name)
+
+
+def hide_hosts(text, hosts, keep=(), *, _trace=None):
+    """Hide whole known names, longest first, preserving existing scrubber tokens."""
+    names = _host_names(hosts, keep)
+    parts = PLACEHOLDER.split(text)
+    ranges, offset = [], 0
+    for i, part in enumerate(parts):
+        trace = _ScrubTrace(part) if _trace is not None else None
+        if trace is not None:
+            trace.ranges = _trace.ranges[offset:offset + len(part)]
+        offset += len(part)
+        if i % 2 == 0:
+            sub = trace.sub if trace is not None else re.sub
+            for name in names:
+                parts[i] = sub(_host_pattern(name), "<host>", parts[i], flags=re.I)
+        if trace is not None:
+            ranges.extend(trace.ranges)
+    if _trace is not None:
+        _trace.ranges = ranges
    return "".join(parts)


@@ -223,19 +241,128 @@ PLAIN_WORDS = {"answer", "the", "a", "an", "this", "it", "its", "be", "connect",
 KEYWORDS = {"host", "hostname", "to", "port"} | PLAIN_WORDS


-def hide_operands(text):
+def hide_operands(text, *, _sub=re.sub):
    def one(m):
        word = m.group(2).rstrip(".")
        dots = m.group(2)[len(word):]
        return m.group(0) if word.lower() in PLAIN_WORDS else f"{m.group(1)} <host>{dots}"
-    return OPERAND.sub(one, text)
+    return _sub(OPERAND, one, text)
+
+
+class _ScrubTrace:
+    """Map every output character to its source interval through sequential redactions.
+
+    Unchanged prefixes/suffixes retain their origins. The changed middle inherits
+    its source interval and is marked as replaced; extra spans can widen to cover
+    that whole interval without restoring anything the old pipeline removed.
+    """
+    def __init__(self, text):
+        self.ranges = [(i, i + 1, False) for i in range(len(text))]
+        self.redactions = []
+
+    def sub(self, pattern, replacement, text, flags=0):
+        pattern = re.compile(pattern, flags)
+        pieces, ranges, end = [], [], 0
+        for match in pattern.finditer(text):
+            start, stop = match.span()
+            value = replacement(match) if callable(replacement) else match.expand(replacement)
+            pieces.extend((text[end:start], value))
+            ranges.extend(self.ranges[end:start])
+            if value == match.group(0):
+                ranges.extend(self.ranges[start:stop])
+            else:
+                original = match.group(0)
+                prefix = 0
+                while prefix < min(len(original), len(value)) and original[prefix] == value[prefix]:
+                    prefix += 1
+                suffix = 0
+                while (suffix < min(len(original), len(value)) - prefix
+                       and original[-suffix - 1] == value[-suffix - 1]):
+                    suffix += 1
+                ranges.extend(self.ranges[start:start + prefix])
+                source = self.ranges[start + prefix:stop - suffix]
+                # A known name can itself be a prefix of "<host>". Attribute
+                # inserted characters to its last character in that case.
+                if not source:
+                    source = self.ranges[max(start, start + prefix - 1):start + prefix]
+                interval = (source[0][0], source[-1][1])
+                self.redactions.append(interval)
+                ranges.extend([(*interval, True)] * (len(value) - prefix - suffix))
+                if suffix:
+                    ranges.extend(self.ranges[stop - suffix:stop])
+            end = stop
+        pieces.append(text[end:])
+        ranges.extend(self.ranges[end:])
+        self.ranges = ranges
+        return "".join(pieces)
+
+
+def _failure_spans(text, hosts):
+    """Extra redactions discovered before any replacement can destroy context."""
+    spans = []
+    tokens = [m.span() for m in PLACEHOLDER.finditer(text)]
+    token_starts = [start for start, end in tokens]
+    for name in _host_names(hosts):
+        for match in re.finditer(_host_pattern(name), text, re.I):
+            # Standalone scrubber tokens survive; a whole display name may cross one.
+            token = bisect_right(token_starts, match.start()) - 1
+            if token < 0 or match.end() > tokens[token][1]:
+                spans.append(match.span())
+    start = 0
+    while True:
+        match = OPERAND.search(text, start)
+        if not match:
+            break
+        word = match.group(2).rstrip(".")
+        if word.lower() not in PLAIN_WORDS:
+            spans.append((match.start(2), match.start(2) + len(word)))
+        # An operand can itself be another marker ("to hostname bastion").
+        start = match.start(2)
+    merged = []
+    for start, end in sorted(spans):
+        if merged and start <= merged[-1][1]:
+            merged[-1] = (merged[-1][0], max(end, merged[-1][1]))
+        else:
+            merged.append((start, end))
+    return merged


 def scrub_failure(text, hosts=()):
-    """Free text about a failed attempt, for the log: the attempt's own names, whole and
-    longest first (case-insensitively, never ssh's own words), then anything ssh names as a
-    host, then the shared scrubber (addresses, paths, user names)."""
-    return frame_telemetry.scrub(hide_operands(hide_hosts(str(text or ""), hosts)), 600)
+    """Keep the existing scrubbed log, then hide additional original name/ssh spans.
+
+    Source ranges carry those spans through the existing substitutions. Applying
+    them only to that pipeline's output cannot reveal text it previously removed.
+    Keep the old output boundary, then truncate again after extra redaction so
+    shortening a name cannot pull previously omitted text into the log.
+    """
+    text = str(text or "")
+    hosts = tuple(hosts)
+    spans = _failure_spans(text, hosts)
+    # Also preserve rules whose context the old name/operand pass could destroy,
+    # such as a URL, home folder, or PEM footer containing a display name.
+    original = _ScrubTrace(text)
+    frame_telemetry.scrub(text, limit=None, _sub=original.sub)
+    privacy_spans = sorted(original.redactions)
+    trace = _ScrubTrace(text)
+    clean = frame_telemetry.scrub(
+        hide_operands(hide_hosts(text, hosts, _trace=trace), _sub=trace.sub),
+        limit=600, _sub=trace.sub)
+    out, hidden, index, privacy_index = [], False, 0, 0
+    for char, (start, end, replaced) in zip(clean, trace.ranges):
+        while index < len(spans) and spans[index][1] <= start:
+            index += 1
+        redact = index < len(spans) and spans[index][0] < end
+        while privacy_index < len(privacy_spans) and privacy_spans[privacy_index][1] <= start:
+            privacy_index += 1
+        if not replaced and privacy_index < len(privacy_spans):
+            redact |= privacy_spans[privacy_index][0] < end
+        if redact:
+            if not hidden:
+                out.append("<host>")
+        else:
+            out.append(char)
+        hidden = redact
+    return "".join(out)[:600]


 def failure_detail(error):
@@ -56,12 +56,12 @@ BROWSER_FLAGS = []
 PANEL_BOX = (1920, 1080)

 # Opens one viewer on gamescope's X display and gives its window its own panel
-# id. Args: appid url width height tag [browser flags...]. The page puts "[tag]" in its title at
+# id. Args: appid url width height tag profile [browser flags...]. The page puts "[tag]" in its title at
 # once, which is how its X window is found (Chromium may hand the URL to an
 # instance that's already running, so there's no process to follow).
 LAUNCH = r"""set -u
-appid=$1 url=$2 w=$3 h=$4 tag=$5
-shift 5
+appid=$1 url=$2 w=$3 h=$4 tag=$5 profile=$6
+shift 6
 export DISPLAY=:0 LC_ALL=C.UTF-8
 unset WAYLAND_DISPLAY
 if ! xprop -root GAMESCOPE_FOCUSABLE_WINDOWS >/dev/null 2>&1; then
@@ -73,15 +73,15 @@ common=(--ozone-platform=x11 --force-device-scale-factor=1 --no-first-run --no-d
  --disable-features=Translate,MediaRouter --autoplay-policy=no-user-gesture-required
  "--window-size=$w,$h" "$@" "--app=$url")
 if [ -x "$HOME/chromium-xr/chrome" ]; then
-  cmd=("$HOME/chromium-xr/chrome" "--user-data-dir=$HOME/.local/share/frame-control/mac-view" "${common[@]}")
+  cmd=("$HOME/chromium-xr/chrome" "--user-data-dir=$HOME/.local/share/frame-control/$profile" "${common[@]}")
 elif flatpak info org.chromium.Chromium >/dev/null 2>&1; then
  cmd=(flatpak run org.chromium.Chromium
-    "--user-data-dir=$HOME/.var/app/org.chromium.Chromium/data/frame-mac-view" "${common[@]}")
+    "--user-data-dir=$HOME/.var/app/org.chromium.Chromium/data/frame-$profile" "${common[@]}")
 else
  echo "NO_BROWSER"
  exit 3
 fi
-log=/tmp/frame-mac-view.log
+log=/tmp/frame-$profile.log
 setsid nohup "${cmd[@]}" >>"$log" 2>&1 </dev/null &
 for _ in $(seq 1 60); do
  sleep 0.5
@@ -105,9 +105,9 @@ class MacViewError(Exception):
    pass


-def panel_id(src):
+def panel_id(src, host="mac"):
    """A stable panel id per source, in the range panel-on-frame.sh uses."""
-    return 2_001_000_000 + zlib.crc32(f"mac:{src}".encode()) % 1_000_000
+    return 2_001_000_000 + zlib.crc32(f"{host}:{src}".encode()) % 1_000_000


 def fit(w, h, box=PANEL_BOX):
@@ -116,6 +116,9 @@ def fit(w, h, box=PANEL_BOX):


 class MacView:
+    host = "mac"
+    viewer_profile = "mac-view"
+
    def __init__(self, tunnel_ssh, run, frame, track=None):
        self.tunnel_ssh = list(tunnel_ssh)
        self.run = run
@@ -174,6 +177,12 @@ class MacView:
        except OSError:
            return False

+    def agent_command(self):
+        return [str(AGENT)]
+
+    def agent_environment(self):
+        return {**os.environ, "FRAME_MAC_VIEW_TOKEN": self.token}
+
    def ensure_agent(self):
        with self.lock:
            if self.agent and self.agent.poll() is None:
@@ -182,11 +191,11 @@ class MacView:
            if reason:
                raise MacViewError(reason)
            self.build()
-            env = {**os.environ, "FRAME_MAC_VIEW_TOKEN": self.token}
+            env = self.agent_environment()
            # The same port as before when restarting, so a running tunnel still
            # fits; otherwise (or if it's gone) whatever the system gives.
            for port in dict.fromkeys([self.port or 0, 0]):
-                self.agent = subprocess.Popen([str(AGENT), "serve", "--port", str(port), "--page", str(PAGE),
+                self.agent = subprocess.Popen([*self.agent_command(), "serve", "--port", str(port), "--page", str(PAGE),
                                               "--exit-on-eof"], env=env, stdin=subprocess.PIPE,
                                              stdout=subprocess.PIPE, stderr=subprocess.STDOUT, text=True)
                line = self.agent.stdout.readline()
@@ -195,7 +204,7 @@ class MacView:
                    break
                self.agent.kill()
            else:
-                raise MacViewError(f"The Mac streaming helper didn't start: {line.strip() or 'no output'}")
+                raise MacViewError(f"The streaming helper didn't start: {line.strip() or 'no output'}")
            if self.port != int(m.group(1)):
                self._drop_tunnel()
            self.port = int(m.group(1))
@@ -211,7 +220,7 @@ class MacView:
            with urllib.request.urlopen(req, timeout=10) as r:
                return json.load(r)
        except (urllib.error.URLError, OSError, ValueError) as e:
-            raise MacViewError(f"The Mac streaming helper didn't answer: {e}")
+            raise MacViewError(f"The streaming helper didn't answer: {e}")

    # ---- the tunnel from the Frame ----

@@ -396,7 +405,7 @@ class MacView:
        # the agent no longer counts them, so only move when none are out there.
        others = self.shown - {src}
        self.ensure_tunnel(allow_new_port=not others)
-        appid = panel_id(src)
+        appid = panel_id(src, self.host)
        # Unique per launch, so a new window is never confused with an old one.
        tag = "fc" + secrets.token_hex(4)
        # A single-use ticket for this source, not Frame Control's key: the URL
@@ -406,7 +415,7 @@ class MacView:
                  "bpp": q["bpp"]}
        url = f"http://127.0.0.1:{self.remote_port}/view?{urlencode(params)}"
        w, h = fit(width or 1280, height or 720)
-        args = " ".join(_quote(str(a)) for a in (appid, url, w, h, tag, *self.browser_flags))
+        args = " ".join(_quote(str(a)) for a in (appid, url, w, h, tag, self.viewer_profile, *self.browser_flags))
        try:
            out = self.run("bash -s -- " + args, stdin=LAUNCH, timeout=60)
        except Exception as e:  # noqa: BLE001 - the server's Failure carries the Frame's words
@@ -438,7 +447,8 @@ class MacView:
            if self.shown or self.shows != shows or self.launching:
                return
            try:
-                self.run("pkill -f '[f]rame-control/mac-view|[d]ata/frame-mac-view' || true", timeout=10)
+                pattern = "[f]rame-control/" + self.viewer_profile + "|[d]ata/frame-" + self.viewer_profile
+                self.run("pkill -f " + _quote(pattern) + " || true", timeout=10)
            except Exception:
                pass

@@ -449,7 +459,9 @@ class MacView:
        status = self.call("/status")
        windows = self.call("/windows").get("windows", []) if status.get("screen") else []
        displays = self.call("/displays").get("displays", [])
-        return {"available": True, "screen": status.get("screen", False),
+        return {"available": True, "host": self.host, "selecting": status.get("selecting", False),
+                **({"windowCaptureReason": status["windowCaptureReason"]} if status.get("windowCaptureReason") else {}),
+                "selectionError": status.get("selectionError", ""), "screen": status.get("screen", False),
                "accessibility": status.get("accessibility", False), "streams": status.get("streams", []),
                "windows": windows, "displays": displays, "tunnel": self.tunnel_up(),
                "route": self.route}
Author	SHA1	Message	Date
SAPHID	03352e5962	Clarify desktop installation and first headset connection	2026-10-24 07:59:16 +00:00
Alex SouthwellandSAPHID	040581a4c7	Bump Frame Control to 0.4.16 (#148 ) Co-authored-by: SAPHID <saphid@users.noreply.github.com>	2026-10-24 07:42:37 +00:00
Alex SouthwellandSAPHID	17f6d52717	Document real Steam clip export verification (#147 ) Co-authored-by: SAPHID <saphid@users.noreply.github.com>	2026-10-24 07:34:34 +00:00
Alex SouthwellandSAPHID	b4e80cab0a	Escape power report CSV metadata for spreadsheets (#146 ) Co-authored-by: SAPHID <saphid@users.noreply.github.com>	2026-10-24 07:28:26 +00:00
Alex SouthwellandSAPHID	b98e3e496f	Bump Frame Control to 0.4.15 (#145 ) Co-authored-by: SAPHID <saphid@users.noreply.github.com>	2026-10-24 07:08:23 +00:00
Alex SouthwellandSAPHID	a148e02d39	Add bounded read-only power and heat reports to desktop Tools (#144 ) * Add bounded desktop power and heat observations with offline downloads * Fix desktop power tests on Python 3.9 --------- Co-authored-by: SAPHID <saphid@users.noreply.github.com>	2026-10-24 06:58:19 +00:00
Alex SouthwellandSAPHID	0fb9174c23	Fix Return to Game Mode detection in full Plasma (#143 ) * Fix Frame session detection for full Plasma Desktop Mode * Document real Frame Desktop Mode return verification --------- Co-authored-by: SAPHID <saphid@users.noreply.github.com>	2026-10-24 06:46:17 +00:00
Alex SouthwellandSAPHID	c7489a88eb	Bump Frame Control to 0.4.14 (#141 ) Co-authored-by: SAPHID <saphid@users.noreply.github.com>	2026-10-24 06:09:59 +00:00
Alex SouthwellandSAPHID	be74850a8e	Add accessible offline power sampler exports with partial results (#140 ) Co-authored-by: SAPHID <saphid@users.noreply.github.com>	2026-10-24 05:59:53 +00:00
Alex SouthwellandSAPHID	dc21428f85	Add guarded read-only doctor plans and before/after reports (#139 ) Co-authored-by: SAPHID <saphid@users.noreply.github.com>	2026-10-24 05:51:49 +00:00
Alex SouthwellandSAPHID	fa43c83b06	Recover release uploads from untagged drafts (#138 ) Co-authored-by: SAPHID <saphid@users.noreply.github.com>	2026-10-24 05:35:49 +00:00
Alex Southwell	1d4c57d648	Merge pull request #137 from saphid/release/0.4.13 Bump Frame Control to 0.4.13	2026-10-24 05:11:37 +00:00
SAPHID	c6215712fe	Bump Frame Control to 0.4.13	2026-10-24 05:02:27 +00:00
Alex SouthwellandSAPHID	cd7ab2d9f7	Import standalone APK/OBB bundles through the current backup flow (#136 ) * feat(android): inspect standalone APK and OBB bundles safely * test: decode Android page fixture as UTF-8 --------- Co-authored-by: SAPHID <saphid@users.noreply.github.com>	2026-10-24 05:01:32 +00:00
Alex SouthwellandSAPHID	4b68971383	Add read-only power and heat sampler for issue #52 (#135 ) * Add read-only power and heat sampler for issue 52 * Make power sampler IIO fixture portable on Windows * test: normalize Windows fixture paths for power sampler --------- Co-authored-by: SAPHID <saphid@users.noreply.github.com>	2026-10-24 04:43:47 +00:00
Alex Southwell	54c001d537	Merge pull request #134 from saphid/release/0.4.12 Bump Frame Control to 0.4.12	2026-10-24 04:29:09 +00:00
SAPHID	5ce5c023b6	Merge remote-tracking branch 'origin/main' into release/0.4.12	2026-10-24 04:20:33 +00:00
Alex Southwell	709fef0dbd	Merge pull request #133 from saphid/t3/android-compat-verdict-search Android store: show compatibility reports without blocking search	2026-10-24 04:18:57 +00:00
SAPHID	49408dc171	Bump Frame Control to 0.4.12	2026-10-24 04:12:30 +00:00
SAPHID	c728e64fbd	Merge remote-tracking branch 'origin/main' into coord/resolve-133 # Conflicts: # CHANGELOG.md	2026-10-24 04:11:32 +00:00
Alex Southwell	0626c52e12	Merge pull request #132 from saphid/t3/fix-log-scrubber-edge-cases Fix display-name overlaps in optional log redaction	2026-10-24 04:10:58 +00:00
SAPHID	b9b4a00485	Merge remote-tracking branch 'origin/main' into coord/resolve-132 # Conflicts: # CHANGELOG.md	2026-10-24 04:00:26 +00:00
Alex Southwell	eb125b59c7	Merge pull request #131 from saphid/fix/issue-87-recovery-polish Fix remaining host-key recovery UI clipping and punctuation	2026-10-24 03:59:21 +00:00
SAPHID	7e53fe32cb	Show Android compatibility reports without blocking search	2026-10-24 03:58:37 +00:00
SAPHID	ebae409632	Fix overlapping display-name redaction in optional logs	2026-10-24 03:56:45 +00:00
SAPHID	08cb267ce4	Fix remaining host-key recovery clipping and tooltip punctuation	2026-10-24 03:52:38 +00:00
Alex Southwell	0119544c3e	Merge pull request #130 from saphid/release/0.4.11 Frame Control 0.4.11	2026-10-24 03:42:24 +00:00
SAPHID	2a9e7dcabf	Bump Frame Control to 0.4.11	2026-10-24 03:34:25 +00:00
Alex Southwell	5a9099dddb	Merge pull request #129 from saphid/t3/test-windows-vm-headset Fix Windows PC screen capture with the bundled GStreamer libraries	2026-10-24 03:33:31 +00:00
SAPHID	ec4086db69	Probe capture properties in initialized native adapter	2026-10-24 03:25:28 +00:00
SAPHID	5a7c3541f8	Merge current main into Windows capture fix	2026-10-24 03:20:54 +00:00
SAPHID	525040162e	Fix Windows PC screen capture with DXGI-only GStreamer bundles	2026-10-24 03:17:11 +00:00
Alex Southwell	21e771d16e	Merge pull request #128 from saphid/t3/headset-game-storage Show headset space and read-only Steam game storage	2026-10-24 03:15:37 +00:00
SAPHID	2cd095a8c4	Docs: align testing summary with real backup evidence	2026-10-24 03:08:37 +00:00
SAPHID	bb9236b2b7	Merge main into storage and retain release notes	2026-10-24 03:08:15 +00:00
Alex Southwell	1bc090d00d	Merge pull request #127 from saphid/feat/frame-doctor-read-only Add read-only Frame doctor for setup and pairing diagnostics	2026-10-24 03:07:35 +00:00
SAPHID	63ba25ffdd	Merge main into doctor and retain both changelog entries	2026-10-24 02:58:52 +00:00
Alex Southwell	98e6e90d84	Merge pull request #126 from saphid/t3/fix-smoke-process-cleanup fix: stop test-owned smoke processes before removing titles	2026-10-24 02:58:08 +00:00
SAPHID	7c061846bd	Tests: run doctor Bash wrapper only on POSIX	2026-10-24 02:55:40 +00:00
Alex Southwell	a91d55151f	Merge pull request #125 from saphid/feature/battery-health-v0410 Improve read-only Frame battery health monitoring	2026-10-24 02:51:38 +00:00
SAPHID	7f25e87b42	Docs: record real Frame doctor safety stop	2026-10-24 02:49:35 +00:00
SAPHID	ff245953ac	Docs: record read-only storage probe on Frame	2026-10-24 02:49:33 +00:00
Alex Southwell	46665d51c0	Merge pull request #124 from saphid/fleet/mppkd9qczt Docs: record real Frame clipboard check and remaining test gaps	2026-10-24 02:48:12 +00:00
SAPHID	67615e85c3	Docs: record real Proton smoke cleanup verification	2026-10-24 02:47:26 +00:00
SAPHID	9e3c3cd31d	Add privacy-safe read-only Frame doctor diagnostics	2026-10-24 02:45:44 +00:00
SAPHID	537754ebce	Add read-only headset game storage inventory	2026-10-24 02:44:45 +00:00
SAPHID	573a9e2730	test: keep Linux-only signal checks off other desktop platforms	2026-10-24 02:42:53 +00:00
SAPHID	8b91b58336	Docs: record read-only battery parser check on Frame	2026-10-24 02:42:45 +00:00
SAPHID	12c60ec024	fix: inspect available process evidence without touching protected peers	2026-10-24 02:41:50 +00:00
SAPHID	60261f093f	fix: stop owned smoke processes before removing titles	2026-10-24 02:40:26 +00:00
SAPHID	3120a3cacf	Add read-only Frame battery health and capacity monitoring	2026-10-24 02:40:06 +00:00
SAPHID	fecb226e43	Docs: record round-2 Frame verification and remaining gaps	2026-10-24 02:39:25 +00:00
Alex Southwell	e9cbb8fd55	Merge pull request #122 from saphid/release/0.4.10 Frame Control 0.4.10	2026-10-24 01:22:05 +00:00
SAPHIDandClaude Opus 5.5	d72be95f25	Frame Control 0.4.10 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-24 01:15:19 +00:00
Alex Southwell	65fedbf01e	Merge pull request #121 from saphid/feat/windows-pc-in-headset PC in the headset on Windows (Experimental)	2026-10-24 01:15:04 +00:00
SAPHIDandClaude Opus 5.5	311ee70783	CI: test the installed Windows app's PC libraries, after the installer check Running the bundled Python against win-unpacked wrote __pycache__ into the copy the installer check compares with, so the check failed. The test now runs after that check, on the installed app, without writing bytecode. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-24 00:50:36 +00:00
SAPHIDandClaude Opus 5.5	f832d0b912	CI: retry the MSYS2 package install for the Windows PC host A mirror answered HTTP 429 mid-install and failed the Windows installer build. setup-msys2 still does the system update; the package install is now its own step with three attempts, in release.yml and pc-host.yml. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-24 00:42:47 +00:00
SAPHIDandClaude Opus 5.5	361bcf8a1b	Merge origin/main into feat/windows-pc-in-headset ui/index.html: main added the Back up tool link beside the Mac one; both links and both host checks are kept. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-24 00:34:09 +00:00
SAPHIDandClaude Opus 5.5	10f86d3e7a	Docs: PC in the headset is experimental, Windows only, and unverified on a desktop Rewrites docs/pc-in-headset.md for the Windows scope, with #38's evidence kept under the revisions it was measured at. README marks it Experimental; testing.md, mac-in-headset.md and THIRD_PARTY_NOTICES.md (the bundled GStreamer) follow. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-24 00:29:12 +00:00
SAPHIDandClaude Opus 5.5	5fea1526ca	Bundle the PC host in the Windows installer only, without x264 #38 built and bundled the native host into the Windows and both Linux installers (adding a Linux ARM64 installer). Only the Windows installer gets it now; the Linux and macOS installer jobs are as on main. x264 is GPL and Windows encodes with Media Foundation, so the shipped bundle leaves it out. desktop/build.py --with-x264 adds it for the native CI jobs' headless protocol tests, which no longer upload their bundles. The release job tests the packaged app's own bundle with its bundled Python and checks x264 isn't in it. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-24 00:29:12 +00:00
SAPHIDandClaude Opus 5.5	7a7dca70de	PC in the headset: Windows only, Experimental and off until turned on host_view now picks the PC host on Windows only; Linux and macOS keep the Mac view as on main, so #38's Linux adapter is never offered. The PC host starts nothing, loads no native library and lists no windows until the person ticks "Turn on PC in the headset" on the card (action "enable" on /api/macview). Turning it off ends streams, viewers and the helper. The choice is a client preference, like mvSeparate. Tools lists "PC in the headset" on Windows only, beside the macOS-only Mac link, with an Experimental tag and a short note on what hasn't been tried. The Mac card's wording and Linux-portal tweaks from #38 go back to main's, apart from the shared "your computer" hint. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-24 00:29:12 +00:00
Alex Southwell	bf8c500a87	Merge pull request #118 from saphid/feat/backup-recovery-kit Backup and recovery kit: saves, settings and Android data, restore after a reset, Return to Game Mode	2026-10-24 00:23:51 +00:00
SAPHIDandClaude Opus 5.5	71fe208fea	Keep the Mac helper on its own Swift rate controller #38 swapped the Mac agent's Swift RateController for a binding to desktop/controller.c. That is a change to a shipped, headset-verified feature that this Windows-only PR can't test on a Mac, so the Mac agent, its build script and the staleness check go back to main. The C port stays for the Windows host and is still checked against the frozen trace of the Swift original. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-24 00:17:05 +00:00
SAPHIDandClaude Opus 5.5	2b838ede9e	Backup docs: what was tested on a real Frame Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-24 00:16:38 +00:00
SAPHIDandClaude Opus 5.5	8402a671ef	Merge origin/pc-in-headset (PR #38 ) into feat/windows-pc-in-headset Brings in #38's native PC host. The only conflict was ui/index.html: main moved the macview card under Tools, so this keeps main's layout; #38's loadMacView changes applied cleanly. Scoping to Windows and the Experimental opt-in follow in separate commits. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-24 00:14:24 +00:00
SAPHID	310e778d00	Merge remote-tracking branch 'origin/main' into feat/backup-recovery-kit # Conflicts: # ui/index.html	2026-10-24 00:13:26 +00:00
SAPHIDandClaude Opus 5.5	a909beb39e	Return to Game Mode: recognise gamescope-wl, and switch only when Desktop Mode is seen On a Frame (build 20261015.6141207) gamescope runs as gamescope-wl, so the session check said unknown, and the button would have restarted a headset that was in Game Mode. Game Mode now also counts gamescope-wl and start-gamescope-session, and the switch runs only when Plasma is running without gamescope. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-24 00:13:17 +00:00
Alex Southwell	e2601965bd	Merge pull request #120 from saphid/fix/record-stop Recording: Stop actually stops ffmpeg on the Frame	2026-10-24 00:11:10 +00:00
SAPHIDandClaude Opus 5.5	30cbe1c901	Backup and recovery kit: saves, settings and Android data off the Frame and back Tools → Backup & recovery copies game saves (Proton prefixes' AppData, Documents and Saved Games, Unity and Godot saves), Steam controller layouts, desktop settings and Android app data (the existing backup-data helper) to ~/Documents/Frame Control Backups/<time>/ with a manifest of every file's size and SHA-256 and the headset's BUILD_ID. Backing up only reads the headset; sign-in files, keys and keyrings are refused by name wherever they are. Restore checks each part against the headset first and skips, rather than fails, games not installed yet, prefixes Proton hasn't made, a missing Steam account and closed or missing Android apps. It asks before replacing anything, writes only inside each part's folders and keeps every replaced file under ~/.local/share/frame-control/restore-previous/. Return to Game Mode reads the SDDM session config and runs the switch Valve's devkit tools use (steamos-session-select / holo-session-select gamescope), only when the headset isn't already in Game Mode and only after confirmation. Not tested on a headset. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-23 23:28:35 +00:00
SAPHID	a13f4fafab	fix(ui): reconcile PC host controls with current main	2026-10-18 00:36:47 +00:00
SAPHID	ea0b6a80bd	Merge main and resolve native host documentation and build triggers	2026-10-18 00:06:01 +00:00
SAPHID	b351fe7ad6	chore: resolve conflicts with main	2026-10-17 22:09:58 +00:00
saphid	3cb3defaa7	Record blocked shared-Frame verification and portal limits	2026-09-29 11:13:08 +10:00
saphidandClaude Opus 5.5	a992f6d896	PC host: review fixes (idle watchdog, controller close race, malformed input, loader path) - The 10 s watchdog no longer ends idle sessions. PipeWire and WGC deliver frames only on damage; fail only when a frame entered the encoder and never came out, or the pipeline never produced its initial frame. - Controller.state/call/update are inert after close(), so a /status poll racing Stop cannot dereference the freed native controller. - Malformed viewer fields drop the event instead of ending the session. - PATH/LD_LIBRARY_PATH prepends add no empty (current directory) entry. - portal.c: document fd ownership. pipewiresrc dups the fd it is given (gstpipewirecore.c, F_DUPFD_CLOEXEC), so the portal closing its own fd is correct; clear it after close. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-29 10:44:12 +10:00
saphidandClaude Opus 5.5	d9d538690e	Merge origin/main into pc-in-headset Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-29 10:38:37 +10:00
saphid	391ecbeac5	Record final local test coverage and desktop verification limits	2026-09-28 23:14:36 +10:00
saphid	1dc2a99617	Map the exported PipeWire video adapter factory	2026-09-28 23:13:19 +10:00
saphid	d6f3d7c380	Set Windows DPI coordinates before native plugin initialization	2026-09-28 23:10:00 +10:00
saphid	838eaa4e6b	Cover the available PipeWire converter and its D-Bus support	2026-09-28 23:09:04 +10:00
saphid	6104c3f192	Refuse window input when Windows cannot focus its target	2026-09-28 23:07:38 +10:00
saphid	da5c954ce4	Retain the final idle-window update while the stream gate is closed	2026-09-28 23:05:23 +10:00
saphid	2466c5aa14	Include and smoke-test PipeWire video adapter factories	2026-09-28 23:00:13 +10:00
saphid	060cf9cd57	Bundle PipeWire client modules and record the real Frame probe	2026-09-28 22:58:41 +10:00
saphid	cd202433bb	Verify shared adaptation and harden PC stream lifecycle	2026-09-28 22:50:58 +10:00
saphid	c5fc552c60	Add native PC capture adapters behind the shared panel viewer	2026-09-28 22:29:34 +10:00
saphid	559caa2dd0	Share the desktop stream rate controller across host platforms	2026-09-28 22:23:10 +10:00