Merge pull request #58 from saphid/fix/flat2vr-mods-windows

UEVR helper tests: import and skip cleanly on Windows (fixes PR #50 CI)
chore: resolve conflicts with main
2026-10-18 02:01:20 +02:00 · 2026-10-18 10:54:26 +11:00 · 2026-10-17 22:10:04 +00:00 · 2026-10-15 13:32:54 +11:00 · 2026-10-15 13:10:26 +11:00 · 2026-10-15 13:10:18 +11:00
35 changed files with 3359 additions and 119 deletions
@@ -219,7 +219,7 @@ Frame's software fits together, all checked against a real headset and labelled
 | [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 |
 | [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) | Per-game feasibility, real-Frame results and blockers; no installer yet |
+| [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 |
@@ -116,10 +116,11 @@ function ping(target) {
 }

 async function startServer() {
-  // The version and whether this is a built app go to ui/frame_telemetry.py, which
-  // sends nothing from a source checkout.
+  // The version, the time zone and whether this is a built app go to ui/frame_telemetry.py,
+  // which sends nothing from a source checkout.
  const env = { ...process.env, PATH: await loginPath(), FRAME_CONTROL_APP: "1",
                FRAME_CONTROL_VERSION: app.getVersion(), FRAME_CONTROL_LOG: LOG,
+                FRAME_CONTROL_TIMEZONE: Intl.DateTimeFormat().resolvedOptions().timeZone || "",
                ...(app.isPackaged ? { FRAME_CONTROL_PACKAGED: "1" } : {}),
                ...(fs.existsSync(TOOLS) ? { FRAME_CONTROL_TOOLS: TOOLS } : {}) };
  python = await findPython(env);
@@ -1,12 +1,12 @@
 {
  "name": "frame-control",
-  "version": "0.4.5",
+  "version": "0.4.7",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "frame-control",
-      "version": "0.4.5",
+      "version": "0.4.7",
      "license": "MIT",
      "devDependencies": {
        "electron": "^44.4.5",
@@ -1,7 +1,7 @@
 {
  "name": "frame-control",
  "productName": "Frame Control",
-  "version": "0.4.5",
+  "version": "0.4.7",
  "description": "Desktop app for managing a Valve Steam Frame over SSH",
  "private": true,
  "main": "main.js",
@@ -51,6 +51,7 @@
          "*.py",
          "*.html",
          "*.js",
+          "*.css",
          "telemetry.json"
        ]
      },
@@ -0,0 +1,122 @@
+# UEVR from Frame Control, 2026-09-29
+
+**Verified observations**, with limits below. Same device and software as
+[2026-09-28](mods-2026-09-28.md): aarch64, SteamOS `0.4.1`, BUILD_ID
+`20260925.6191901`, Proton `11.0-2c` ARM64, SteamVR `2.18.1`. Times are the
+Frame's AEST clock. Headset tests ran under the shared
+`/tmp/frame-test.lock`, taken 11:13–11:28, 11:33–11:49, 12:02–12:40,
+12:44–12:52 and 13:01–13:03. Battery 45 % →
+93 %, on charge throughout.
+
+**Not observed:** the VR image, head tracking and controller input. SteamVR
+reported `activity_level` 3 (user interaction timeout; the headset was not
+being worn) with `average_target_fps` 1. Every `frame_vrshot.py` stereo
+capture was a uniform dark frame. Frame submits prove the app is presenting
+to SteamVR, not that the image is correct.
+
+## Manual injection (11:13–11:28)
+
+Game launched with `steam steam://rungameid/1067310`. `UEVRInjector.exe` was
+started with the game process's Wine variables, and its WPF window drew
+through DXVK's D3D9. It listed `Drop-Win64-Shipping (pid: 320) (SkyArk
+(64-bit, PCD3D_SM5))`, a Wine-side process id.
+
+- `--attach=Drop-Win64-Shipping` didn't inject. The button still read
+  **Inject**, and the saved `OpenVRRadio=True` in `AppData/Local/praydog/…/user.config`
+  was not restored on the next start.
+- XTest clicks landed on the game: `XQueryPointer` reported child
+  `0x2000001` (the game) at the injector's coordinates, and
+  `XLowerWindow`/`XRaiseWindow`/`XSetInputFocus` didn't change that.
+- `XSendEvent` button events to the injector window worked. After OpenVR and
+  Inject, `/proc/<game>/maps` contained
+  `drive_c/frame26/uevr/UEVRBackend.dll` and `openvr_api.dll`, next to
+  Proton's `vrclient_x64.dll`. UEVR's log:
+
+```text
+[11:17:32.948] Hooking D3D11
+[11:17:33.020] Hooked DirectX 11
+[11:17:34.263] Framework initialized
+[11:17:34.475] [VR] Requested runtime: openvr_api.dll
+[11:17:39.791] UGameViewportClient::Draw called for the first time.
+[11:17:39.792] is stereo enabled called!
+```
+
+It also logged repeated `Failed to initialize Framework on DirectX 12` (probing
+before it chose D3D11) and failed Unreal scans, for example `Failed to locate
+r.EnableStereoEmulation cvar` and `Failed to find FSceneView constructor`.
+SteamVR loaded UEVR's action manifest and `bindings_oculus_touch.json` for
+`steam.app.1067310`. `vrcmd --stats` then showed `"key" :
+"steam.app.1067310"` with `frame_submits` 4439, then 5506 a few seconds later.
+
+A second session's injector exited within about 20 seconds. The third,
+started fresh, injected again (`frame_submits` 1412). After the game was
+stopped, a plain launch had no UEVR modules and no SteamVR scene app. All test
+files were removed.
+
+## Through Frame Control (11:33–11:49)
+
+Local `ui/server.py` against the `frame` alias. First the API, then the
+page's **VR mod** dialog, driven with a headless Chromium:
+
+| Step | Result |
+|---|---|
+| `status` for 2177750 (HL2 VR) | `eligible: false`; `install` refused ("doesn't look like an Unreal Engine game") |
+| `install` for 1067310 | 3 s. Three downloads, hashes matched, receipt written |
+| `start`, game running | First run refused: `the UEVR window is 960 px wide, not 625`. It was measured before WPF laid it out; `start` now waits for the width to settle. Rerun: injected, `frame_submits` 27 (36 s) |
+| `uninstall` while running | Refused: "the game is running; quit it first" |
+| `start`, game not running | Launched the game, injected, `frame_submits` 45 (55 s) |
+| UI: Remove, Install | Worked; the prefix listing matched its pre-install state except an empty `UnrealVRMod`, which uninstall now also removes |
+| UI: Play in VR | Failed once: the injector died with `Process terminated. … Resource name: Arg_AccessViolationException`, after `Fontconfig error: No writable cache directories` (it had no `HOME`). Fixed by keeping the normal environment under the game's (the relaunch-on-failure added next is gone with the GUI injector; see below) |
+| UI: Play in VR ×4 | 4 of 4 injected. The three cold starts took 54, 58 and 58 s; frame submits 56, 71, 80 |
+| UI: Remove | `drive_c`, `AppData/Roaming` and `AppData/Local` listings matched the pre-install state; download cache and receipt gone |
+
+## The GUI injector wasn't reliable (12:02–12:40)
+
+After review fixes, cold starts through the API with UEVR's own injector:
+
+- Batches of 4, 6 and 8 runs: 3/4, 4/6 and 6/8 injected. A retry that
+  relaunched the injector didn't rescue a bad session. In both failures of
+  the last batch, the first injector ignored the clicks and the next two
+  never showed a window within 60 s.
+- Captures of the ignoring injector (`xwd`) showed its first-drawn frame,
+  with OpenVR still unselected. The injector's log had no error.
+
+Lock released at 12:40 before redesigning.
+
+## Frame Control's own injector (12:44–12:52)
+
+`start` now runs `frame_inject.py` under python.org's embeddable Python
+3.14.7 (SHA-256 `d297e5ff…1f15`, matching python.org's release-file API), in
+the game's Wine session. The old install was removed and the new one
+installed without the headset lock, since neither launches anything. The
+prefix listing after removal matched the pre-install state; the new install
+is 47 MB.
+
+| Step | Result |
+|---|---|
+| API `start`, cold | Injected in 35 s, `frame_submits` 39. UEVR log: `Hooked DirectX 11`, `Framework initialized`, `Requested runtime: openvr_api.dll`; `config.txt` has `Frontend_RequestedRuntime=openvr_api.dll` |
+| API `start` ×8, cold | **8/8** injected, 33–34 s each; `frame_submits` 33–42 at the check |
+| UI: dialog while running | "UEVR is running in the game now." Remove disabled (screenshot in `docs/img/uevr-dialog.png`) |
+| UI: Remove → Install → Play in VR → Remove | Each worked; Play in VR injected (`frame_submits` 106 a few seconds later) |
+| After the last Remove | `drive_c`, `AppData/Roaming` and `AppData/Local` listings matched the pre-install state; download cache and receipts gone; no game or `python.exe` processes. The empty `/tmp/frame-control-mods.lock` was deleted by hand (tmpfs) |
+
+Battery 98–100 % on charge. Lock released at 12:52.
+
+## After the second review (13:01–13:03)
+
+`frame_inject.py` now declares every Win32 signature, checks each result,
+frees its remote buffers and closes its handles; uninstall accepts only our
+folder and UEVR's own settings folders. Rechecked: install; three cold starts
+injected in 35, 34 and 33 s (`frame_submits` 42, 38, 47), UEVR logging
+`Framework initialized` and `Requested runtime: openvr_api.dll`; uninstall
+left `drive_c`, `AppData/Roaming` and `AppData/Local` as before, with no cache,
+receipts or processes. Frame Control's injector total: 12 of 12 cold starts
+through the API, plus the UI run.
+
+## Left on the Frame
+
+- Gravitas (free, 7.4 GB, installed 2026-09-28 for this work) is still
+  installed; nothing else from this work is left.
+- No `UEVRInjector.exe` or game processes were left running. Steam and
+  SteamVR were running at the end.
+- The test lock was released at 13:03.
@@ -17,11 +17,12 @@ python3 ui/server.py         # anywhere: then open http://127.0.0.1:47810

 ## Features

-The window has five tabs: **Home** (headset view, status, screenshots),
+The window has six tabs: **Home** (headset view, status, screenshots),
 **Games** (installed games, sideloaded titles, getting games), **Android** (apps,
 the catalogue, display settings, reports), **Tools** (sending files and text,
-Flatpaks, remote and power) and **Devices** (your headsets and their addresses).
-Keys 1–5 switch between them. Files can be dropped anywhere in the window. A
+Flatpaks, remote and power), **Devices** (your headsets and their addresses),
+and **Control** (the searchable Control Center, metrics, supported settings and
+headset guidance). Keys 1–6 switch between them. Files can be dropped anywhere in the window. A
 connection pill in the header always shows which headset, which network this
 computer is on, the address in use or being tried, and each step of connecting
 as it happens; click it for the whole timeline. When the Frame can't be
@@ -96,6 +97,61 @@ counts them while they run.
  shut down open a terminal window because SteamOS asks for the sudo password
  over SSH.

+## Control Center
+
+Open **Control** or `#control` to search controls, status and help. Categories
+cover device/audio, VR/comfort, apps/files, connection/remote and Frame Control
+preferences. Search is local: it matches labels, descriptions and familiar terms
+such as “DPI”, “microphone”, “recenter” and “keep awake”. Queries are not sent to
+Steam, app catalogues, analytics or models. Choosing a workflow link opens its
+existing screen; it does not install, cast, open a helper or change a setting.
+Home, Games, Android, Tools and Devices retain their existing features.
+
+The overview and detail cards use the shared `/api/status` sample: charge and
+power, user/system storage, memory, Wi-Fi, IP, OS/build, uptime, detected services
+and VR timings. Values refresh with the normal 30-second poll. A failed status
+request, lost connection, headset switch or sample received more than 90 seconds
+ago clears current readings and disables audio writes. The client receipt time
+and failed-read state are retained through page startup and UI redraws. Only a
+new successful status read clears a failure; reusing the retained sample does not.
+The headset timestamp is shown without assuming
+its clock matches this computer. Missing sensors show **Unavailable**;
+they are not converted to zero. Compositor FPS is separate from application FPS;
+GPU time is render time, not GPU utilisation. The temperature is the hottest
+readable sensor. Thermal trip warnings use per-zone kernel hot/critical limits,
+not a guessed universal temperature threshold.
+
+**Audio** controls the default output sink through the existing `/api/volume`
+endpoint. Moving its slider prepares a value; **Apply volume** sends it. **Mute**
+and **Unmute** send explicit mute states. The UI captures the selected headset,
+blocks duplicate/pending actions, and requests status after command acknowledgment
+for readback, draining an earlier poll first. Mute preserves an unapplied volume
+draft; switching headsets discards it. It reports
+unconfirmed or differing output separately from confirmed state. API validation
+rejects invalid types, out-of-range levels and invalid mute states before SSH.
+
+Other settings link to the existing forms and their validation, progress,
+confirmations and reset behavior: per-instance Android resolution/density/text,
+comfort sessions and alerts, media layouts, Mac streaming quality, privacy,
+sources and artwork. Android display links reveal **On your Frame** before
+scrolling to the form. Mac streaming remains searchable on all platforms, with
+its action shown only when the server is on macOS.
+
+Hardware guidance is deliberately separate from controls. Microphone/routing,
+brightness, refresh selection, optics, controllers, Bluetooth, passthrough,
+tracking-origin changes, saved spatial layouts, firmware updates and recovery
+have no verified remote setting here. Use the headset's own controls or the
+documented manual procedures. Movement comfort remains per-game; automatic
+sleep is in Steam Settings → Power → Sleep after inactivity. Keep-awake and
+Android data backup/restore remain script/MCP capabilities, not new UI switches.
+
+**Verification:** the Control Center's JavaScript runs under Node with mocked
+API and DOM boundaries; the server tests mock SSH and reject invalid values
+before any device command. Packaging tests cover the shared CSS/JS in desktop
+and iPhone bundles. These checks establish wiring, search, navigation, offline,
+error and device-switch behavior; they do not establish wearer experience,
+physical settings persistence or a new hardware capability.
+
 ## How it works

 `app/` is an Electron shell. It starts `ui/server.py` on a free loopback port
@@ -52,6 +52,7 @@ Lepton (Android 11, podman container "lepton-dev") ← its own panel, app 305600
 | The Steam client runs with `-cef-enable-debugging`, so its UI answers Chrome DevTools on loopback `127.0.0.1:8080`. The `SharedJSContext` page has `appStore` (owned apps), `downloadsStore` and `SteamClient.*`. `steam steam://install/<appid>` over SSH installs an owned game; when the options dialog shows (state 7), `SteamClient.Installs.ContinueInstall()` accepts it. **Verified 2026-09-25** with Balatro and Broforce. The Frame rating is `steam_hw_compat_category_packed >> 8 & 3`. | [steam-games.md](steam-games.md), `ui/frame_steam.py` |
 | Chromium Flatpak 154 has **no immersive WebXR**: `navigator.xr` exists, but `isSessionSupported("immersive-vr")` returns `false`. Web VR180 players (DL8/DeoVR embeds) still play video inline as a flat, pannable view, and their VR button opens a tab on immersiveweb.dev. Forcing it doesn't help. `--enable-features=OpenXR,WebXR --force-webxr-runtime=openxr`, with `/opt/steamvr` and `XR_RUNTIME_JSON` exposed to the Flatpak, still returns `false`. The aarch64 Linux binary has no OpenXR code at all (no `XR_RUNTIME_JSON`, `xrGetInstanceProcAddr` or loader strings), even though `chrome://flags` lists `#webxr-runtime` → OpenXR. **Why (verified against source 2026-09-25):** M154 is the first release that compiles OpenXR on Linux (`enable_openxr` includes `is_linux`, `checkout_openxr` is true in Flathub's tarball, and Flathub's GN args don't turn it off). But `content/services/isolated_xr_device/xr_runtime_provider.cc` only creates an OpenXR device under `ENABLE_OPENXR && IS_WIN`, on 154, 155 and `main`. Nothing on Linux calls the OpenXR code, so the linker drops it. The missing pieces are two unmerged Gerrit CLs (bug 506004811): [8132979](https://chromium-review.googlesource.com/c/chromium/src/+/8132979) wires the provider on Linux (with `kOpenXR` still off by default, so it needs `--enable-features=OpenXR`), and [8441736](https://chromium-review.googlesource.com/c/chromium/src/+/8441736) runs the XR service in a sandbox that allows SteamVR's sockets. The Frame does have an aarch64 runtime: `~/.config/openxr/1/active_runtime.json` → SteamVR `bin/linuxarm64/vrclient.so`. To watch in 3D, use a native player, or a Chromium built with those two CLs ([webxr-chromium.md](webxr-chromium.md)). That build (156.0.8071.0, arm64) reports `immersive-vr` as supported and starts a session that SteamVR takes as its scene app. With the headset on, the WebXR samples scene and three.js's stereo 360 video demo showed in 3D (verified 2026-09-26, seccomp sandbox off). Started with `--remote-debugging-port=9222`, Chromium answers DevTools on loopback. **Verified 2026-09-25**, BUILD_ID 20260922.6101926. | Web video, [panels.md](panels.md) |
 | **DeoVR (Steam app 837380, Windows/Unity) runs immersively** under Proton ARM64 + FEX: Unity's OpenVR XR plugin finds `OpenVR Headset(Steam Frame)` and the `frame_controller`, the GPU shows as Turnip Adreno 750, and AVPro Video decodes through `MF-MediaEngine-Hardware`. It played 7680×3840 and 8192×4096 H.265 VR180 SBS streams in dome/fisheye mode (`FirstFrameReady`). Unity's own `VideoPlayer` (used for grid thumbnails) fails with `0xc00d36bb`, so thumbnail previews stay blank. The first launch takes about 45 s (`ComputeShaders: InitAsync`). Log: `compatdata/837380/pfx/drive_c/users/steamuser/AppData/LocalLow/Deo VR/Deo VR/Player.log`. **Verified 2026-09-25**, BUILD_ID 20260922.6101926. | [vr-video.md](vr-video.md) |
+| **A second Windows program can join a running Proton game.** Copy `WINEPREFIX`, `WINEDLLPATH`, `WINEDLLOVERRIDES`, `PATH` (Proton's `files/bin-arm64` comes first) and `DISPLAY` from `/proc/<game pid>/environ`, keeping your own `HOME` and the rest, and run `wine prog.exe` from an ordinary SSH shell. It shares the game's wineserver (outside the pressure-vessel container). Don't copy `WINESERVERSOCKET`, which is an inherited fd. A game's windows live on gamescope's X display for that app (`:1` for Gravitas), where the full-screen game keeps the pointer and focus: XTest clicks and restacking don't reach other windows, but `XSendEvent` button events sent to a window do. `xwd` captures WPF/DXVK windows but shows Vulkan game windows as black. **Verified 2026-09-29**, BUILD_ID 20260925.6191901, Proton 11.0-2c ARM64. | [mods.md](mods.md) |
 | **Wolvic (VR browser APK) runs in Lepton against SteamVR's OpenXR**, with limits. The stock Lynx build aborts (`Runtime doesn't support selected swapChain color format`: it wants `GL_RGBA8`), and the stock Quest build fails with `XR_ERROR_API_VERSION_UNSUPPORTED`. Patching `DeviceDelegateOpenXR::GetSwapChainCreateInfo` in the Lynx build's `libnative-lib.so` to `GL_SRGB8_ALPHA8` (0x8C43) and re-signing fixes start-up. The Gecko engine then segfaults in `libxul`. The Chromium-engine build (Lynx v1.3-chromium) browses fine as an immersive app. Its page reports `isSessionSupported("immersive-vr") == true`, and `requestSession` succeeds, running about 36 rAF/s, but the headset shows **black** for WebXR content, or Wolvic's loading spinner that never clears, until the session is ended. Video decodes on the software `OMX.google.h264.decoder`. Tapping the URL bar's selection menu crashes it (no clipboard service). Open URLs with `am start -a VIEW -n com.igalia.wolvic/.VRBrowserActivity -d <url>` over the instance's ADB. DevTools is at `localabstract:content_shell_devtools_remote`. **Verified 2026-09-25**, BUILD_ID 20260922.6101926. | Web VR video, [apks.md](apks.md) |
 | Tailscale runs without root as a userspace `tailscaled` user service (static arm64 build in `~/.local/share/tailscale`, lingering on). In userspace mode, inbound tailnet connections reach the Frame's **loopback**, so every port, including DevTools on 8080, is reachable from the tailnet. **Verified 2026-09-25.** | [tailscale.md](tailscale.md), `scripts/tailscale-on-frame.sh` |
 | **T3 Code desktop runs natively.** The stock release `T3-Code-0.0.42-arm64.AppImage` in `~/Applications/T3CodeDesktop/` starts with no extra setup: glibc 2.39, `libfuse.so.2`, GTK 3, NSS and libsecret are on the image. `panel-on-frame.sh --name t3code-desktop -- '~/Applications/T3CodeDesktop/T3-Code.AppImage'` gives it its own panel (`valve.steam.desktopgame.2000281357`, `--ozone-platform=x11`). Its bundled server listens on `127.0.0.1:3773` and shows up in onboarding as the `frame` computer, with `passwordStore: gnome-libsecret`. The image has no agent CLI and no `node`. Agents run through the LAN CLIProxyAPI (`llm-proxy.lan:8317`, which resolves on the Frame). Claude Code 2.1.283 comes from `claude.ai/install.sh`, and Codex 0.157.1 from the `codex-aarch64-unknown-linux-musl` release tarball, both into `~/.local/bin`. `with-cliproxy` and a mode-600 `~/.config/cliproxyapi/secrets.env` are copied from the Mac. The wrappers `claude-cliproxy` and `codex-cliproxy` (a `-c model_provider=cliproxy`, `wire_api="responses"`, `env_key="CLIPROXY_API_KEY"`) are set as `providers.claudeAgent.binaryPath` and `providers.codex.binaryPath` in `~/.t3/userdata/settings.json`, and T3 picked that up without a restart. Through the wrappers, `claude auth status` reports `loggedIn: true` (`oauth_token`), and both CLIs answered a prompt with `kimi-k3`. `gamescopectl screenshot` captured another layer (the Lepton T3 app) rather than this panel. `DISPLAY=:0 xwd -id <win>` piped to `ffmpeg` captures the window itself (1920×1080). **Verified 2026-09-26**, BUILD_ID 20260922.6101926. | Running T3 Code as a host on the Frame |
@@ -124,7 +124,10 @@ the redaction look for it.
   it has game data to add: once to add it, once for the test), watches it for
   about 30 seconds, and records what happened. **Test again** repeats only
   the test.
-5. **Disconnect** deletes the token from your computer and, in the desktop
+5. Choose **Install** on as many games as you like: they wait in the
+   **Install queue** and install one after another, with Quest imports and
+   Android store installs. **Remove** takes one out before it starts.
+6. **Disconnect** deletes the token from your computer and, in the desktop
   app, signs out of Meta in Frame Control (clears the sign-in window's
   storage). Games already on the Frame stay.

@@ -145,7 +148,8 @@ The local API: `GET /api/meta` (connected or not, never the token),
 `{"action": "connect", "token": "...", "acknowledged": true}`,
 `{"action": "disconnect"}`, `{"action": "cancel-signin", "attempt": "..."}`, `{"action": "install", "app": "APP_ID", "test": false,
 "allowDowngrade": false}` or `{"action": "test", "package": "..."}`. Install and
-test return a background job (`/api/job`). Sign in with Meta uses the same
+test return a background job (`/api/job`); an install waits its turn in the
+install queue (`/api/queue`, see [Import from my Quest](quest-import.md#using-it)). Sign in with Meta uses the same
 `connect` action: the desktop app's main process (`app/meta-signin.js`) posts
 it with the cookie's value and an `"attempt"` id (8 to 64 letters, digits or
 `-`) once the page's acknowledgement box is ticked. A connect whose attempt
@@ -1,11 +1,14 @@
 # Flat-to-VR mods and Beat Saber songs

-**Status: feasibility work, not an installer.** Frame Control does not yet
-manage mods or Beat Saber songs. [Issue #26](https://github.com/saphid/frame-control/issues/26)
-stays open: neither UEVR injection nor Beat Saber custom-song playback has
-been verified on this Frame. Alex has an owned copy on a Quest 2; that copy
-has not been inspected. There is no Mods button until the underlying
-install, playback and removal have been checked.
+**Status: UEVR works from Frame Control for Unreal Engine games; Beat Saber
+songs are blocked.** Installed games have a **VR mod** button. It installs
+UEVR, starts the game with UEVR injected, and removes UEVR again. That whole
+loop was run on a real Frame on 2026-09-29 with Gravitas, from the app's own
+UI ([evidence](evidence/mods-2026-09-29.md)). The headset was unworn, so
+the VR image, head tracking and controls haven't been seen yet. Beat Saber
+custom songs need an owned Beat Saber on the Frame, which there isn't
+([below](#beat-saber-songs-first)).
+[Issue #26](https://github.com/saphid/frame-control/issues/26) stays open for those.

 The mod manager must be Frame Control's own implementation. Mods and songs
 are permitted third-party content; BSManager, ModsBeforeFriday, MO2 and other
@@ -15,27 +18,87 @@ unofficial mod mirrors are part of this work.

 ## Per-game support

-Checked 2026-09-28 on SteamOS **0.4.1**, BUILD_ID **20260925.6191901**, aarch64,
-with **Proton 11.0-2c ARM64** and SteamVR **2.18.1**. “Verified” describes only
+Checked 2026-09-28 and 2026-09-29 on SteamOS **0.4.1**, BUILD_ID
+**20260925.6191901**, aarch64, with **Proton 11.0-2c ARM64** and SteamVR **2.18.1**. “Verified” describes only
 the observation stated, not a promise that the game is playable. “Documented”
 means an upstream source describes it; “inferred” means it still needs a test.

 | Game / build | Mod or content | Evidence and support status | Next check |
 |---|---|---|---|
 | Half-Life 2: VR Mod – Episode One, Steam 2177750, build 25413453 | Official Steam community mod, shared base depot 658920 build 25413418 | **Verified: startup only.** Already installed; launched through Proton ARM64. The stereo headset capture showed its first-time setup, and SteamVR loaded `bindings_frame.json`. Gameplay, controller interaction, fresh installation and removal are unverified. | Complete first-time setup and play a level before offering a tested install shortcut. |
-| Gravitas, Steam 1067310, Windows | UEVR 1.05 | **Verified: prerequisites and windows only.** Free Steam install completed. The game produced a `SkyArk (64-bit, PCD3D_SM5)` window. UEVR needed .NET; with official .NET 6.0.36 libraries it produced a `UEVR` window. A combined run exited 1 with X11 errors before injection was verified. **Inferred: compatibility remains unknown**, not proven broken. | Retry during a stable headset session; verify injection, stereo scene output, controls and removal. |
+| Gravitas, Steam 1067310, Windows, Unreal Engine 4 | UEVR 1.05, from Frame Control | **Verified 2026-09-29: installs, injects, SteamVR receives frames, removes cleanly.** Twelve cold **Play in VR** runs (33–35 s each), and the full cycle from the app's UI, all loaded `UEVRBackend.dll` into the game, with UEVR logging `Hooked DirectX 11` and `Requested runtime: openvr_api.dll`. SteamVR's compositor counted frame submits for `steam.app.1067310`. Remove restored the prefix to its pre-install file listing. **Not seen:** the stereo image, head tracking and controls (headset unworn). | Wear the headset: check the image, tracking, UEVR's in-headset menu and controller input. |
 | Beat Saber, Steam 620980, Windows / Proton | Basic custom songs; later SongCore and version-matched mods | **Verified: absent from the 868-game library returned by this Frame.** Store metadata lists Windows, not Linux. **Documented:** the PC game reads basic maps from `Beat Saber_Data/CustomLevels` without a mod manager. Playback on Frame is unverified. | An already-owned, legitimately installed copy is required. Do not buy it as part of this task. |
 | Beat Saber, claimed native ARM64 build | Custom songs / native mods | **Inferred: unverified.** The research mentions this build but supplies no verified official distributable or tested layout. CPU architecture alone does not identify Android versus Linux, the game version or the mod ABI. | Establish official provenance, ownership, binary type and version before touching files. Do not apply Quest patches to an unidentified build. |
-| Beat Saber, Alex's Quest 2 copy | Custom songs / Android mods | **Documented: owner-reported copy on Quest 2**, currently charging. No APK, version or installed mods inspected; no Frame playback verified. This does not establish ownership of the Steam build. | When the Quest is available, inspect the owned copy's version and supported transfer path, then test Lepton/OpenXR compatibility without bypassing entitlement checks. |
+| Beat Saber, Alex's Quest 2 copy | Custom songs / Android mods | **Documented: owner-reported copy on Quest 2.** Not reachable on 2026-09-29 (no device on `adb` from the Mac). No APK, version or installed mods inspected; no Frame playback verified. A Quest copy is a Meta store purchase; copying it to another headset would need its entitlement check to pass there, which this work won't work around. This does not establish ownership of the Steam build. | When the Quest is available, inspect the owned copy's version and supported transfer path, then test Lepton/OpenXR compatibility without bypassing entitlement checks. |
 | Hogwarts Legacy, Steam 990080 | R.E.A.L. | **Verified: listed in this Frame's owned library, not installed.** Official release access and redistribution permission were not established; the referenced author Patreon page returned HTTP 403. No archive downloaded or game tested. | Obtain a current free release from the author and confirm its terms before any test. A news report saying “free” is not a redistribution grant. |
 | Horizon Zero Dawn, Steam 1151640; Horizon Forbidden West, Steam 2420110 | R.E.A.L. | **Verified: both listed as owned, neither installed.** Same source/permission blocker as above; runtime support is unverified. | Check each game's supported version against an accessible official release. |
 | Half-Life 2 VR / other OpenVR games | OpenComposite, per-game replacement | **Documented:** forwards OpenVR calls to OpenXR. **Inferred: Frame compatibility unknown.** Not installed or tested. HL2 VR reached setup with the shipped OpenVR path already. | Test a specific game and replacement DLL only if needed; preserve its original DLL. Never switch the shared headset's runtime globally. |
 | Doom / Quake / Half-Life Team Beef ports | Author's VR ports plus separately owned or free game data | **Inferred: untested.** Android ARM64 support does not establish OpenXR extension or controller compatibility on Lepton. | Choose an official release and legally usable data set, then test that exact port. |
 | Skyrim VR, Steam 611670 | SKSEVR / HIGGS / PLANCK stack | **Verified: Skyrim VR is absent from this library.** Owning flat Skyrim or Special Edition is not the VR game's entitlement. Runtime and mod support are unverified. | An already-owned VR copy and version-matched official mod releases are required. |

-The [test record](evidence/mods-2026-09-28.md) distinguishes process startup,
-visible output and failures. It also records a SteamVR restart during the
-shared session, which prevents attributing the failed UEVR attempt to FEX.
+The test records ([2026-09-28](evidence/mods-2026-09-28.md),
+[2026-09-29](evidence/mods-2026-09-29.md)) distinguish process startup,
+visible output, injection and failures.
+
+## UEVR from Frame Control
+
+![The VR mod dialog while UEVR runs in Gravitas](img/uevr-dialog.png)
+
+**Get games → an installed game → VR mod.** The dialog says whether the game
+can take UEVR, then offers **Install UEVR**, **▶ Play in VR** and **Remove
+UEVR**. The server route is `POST /api/mods {"action": "status" | "install" |
+"start" | "uninstall", "appid": …}`, and the work happens on the Frame in
+[`ui/frame_mods.py`](../ui/frame_mods.py). It uses only the standard library,
+like `frame_steam.py`.
+
+- **Which games.** Unreal Engine games, recognised by their
+  `…/Binaries/Win64/*-Win64-Shipping.exe` (inferred as the general rule; checked
+  with Gravitas, and HL2 VR is correctly refused). The game needs a Proton
+  prefix, so it must have been played once.
+- **Install.** Downloads praydog's [UEVR 1.05 release](https://github.com/praydog/UEVR/releases/tag/1.05)
+  and python.org's [Windows x64 embeddable Python 3.14.7](https://www.python.org/downloads/release/python-3147/).
+  Each is checked against a pinned SHA-256; Python's comes from python.org's
+  release-file API. Archives are unpacked into a staging folder, rejecting
+  entries that escape it, symlinks and oversized contents, then moved into
+  `<prefix>/drive_c/frame-control/` (about 47 MB). Nothing goes into the
+  game's own folder. A receipt in `~/.local/share/frame-control/mods/` lists
+  what to remove, including UEVR's own settings folders only if they didn't
+  exist before. Install and remove refuse while the game is running, and only
+  one mod action runs at a time.
+- **Play in VR.** Launches the game through Steam if it isn't running and
+  waits for its window. It then runs a short script under that Python, with
+  the game's Proton, prefix and Wine settings read from the game process, so
+  both share one Wine session. The script repeats what UEVR's own injector does
+  when you press Inject with OpenVR chosen: load `UEVRPluginNullifier.dll` and
+  call its `nullify`, load `openvr_api.dll`, set `Frontend_RequestedRuntime` in
+  UEVR's per-game `config.txt`, then load `UEVRBackend.dll`. Each load is a
+  `LoadLibraryW` remote thread, as in the frontend's `Injector.cs`. `start`
+  then checks that `UEVRBackend.dll` is mapped into the game and reads
+  SteamVR's frame count for the app (`vrcmd --stats`).
+- **Remove.** Deletes what the receipt lists, then the download cache once
+  no game uses it. Verified: the prefix's file listing matched its
+  pre-install state afterwards.
+
+Why not UEVR's own injector (verified 2026-09-29):
+
+- It's a .NET 6 WPF app, so it needs Microsoft's .NET runtimes (about 70 MB
+  of downloads) in the prefix.
+- Under gamescope, the full-screen game keeps the pointer and focus. XTest
+  clicks, raising or refocusing the injector window don't change that, so in
+  the headset you can't click it. Sending X `ButtonPress`/`ButtonRelease`
+  events straight to its window does work.
+- `--attach=<process>` didn't inject under Wine, and it didn't restore its
+  saved OpenVR choice.
+- Driven that way, it injected in 6 of 8 cold starts. In a bad session every
+  new injector ignored input or never showed its window, even after
+  relaunching. Its process list reads each process's main window title, a
+  cross-process window message; a window that isn't answering would block its
+  UI thread (inferred from the frontend's source, not proven). Without a
+  `HOME` it also died in .NET at startup.
+- Frame Control's own script injected in 12 of 12 cold starts through the API, in 33–35 s, and again from the UI.
+- UEVR's DirectX 12 probing logs errors before it settles on DirectX 11 for
+  Gravitas, and some of its Unreal engine scans fail on this older UE4 game.
+  Neither stopped the injection.

 ## Beat Saber: songs first

@@ -62,7 +125,10 @@ or dependency for Frame Control.

 ## Requirements for our manager

-These are **planned**, not implemented or verified:
+For UEVR, items 1–5 are implemented in `frame_mods.py` and covered by
+fake-library tests (`tests/test_mods.py`), apart from checking ownership
+through Steam; item 6 is met for Gravitas. Beat Saber songs would need the
+same, and none of it is built for them:

 1. Resolve the selected Steam game's real library, installed build, executable
   architecture and Proton prefix. Confirm ownership through Steam; a directory
@@ -91,7 +157,11 @@ These are **planned**, not implemented or verified:
 - [UEVR 1.05 official release](https://github.com/praydog/UEVR/releases/tag/1.05)
  and [author's usage instructions](https://github.com/praydog/UEVR#getting-started).
 - [Microsoft .NET 6 release metadata](https://builds.dotnet.microsoft.com/dotnet/release-metadata/6.0/releases.json),
-  including the SHA-512 hashes used for the test runtimes.
+  including the SHA-512 hashes used for the injector tests.
+- [UEVR frontend source](https://github.com/praydog/UEVR-Frontend): `UEVR/MainWindow.xaml.cs`
+  (`Inject_Clicked`) and `UEVR/Injector.cs`, the steps `frame_inject.py` follows.
+- [python.org release-file API](https://www.python.org/api/v2/downloads/release_file/) for the
+  embeddable Python's `sha256_sum`.
 - [OpenComposite's OpenXR branch](https://gitlab.com/znixian/OpenOVR/-/tree/openxr),
  including per-game installation and the need to preserve original DLLs.
 - [R.E.A.L. author post referenced by the research](https://www.patreon.com/realvr/posts/but-wheres-link-165840151)
@@ -33,6 +33,13 @@ computer, exactly as they were sent.
  yours.
 - Every event includes the app version, OS name (macOS, Windows or Linux),
  CPU architecture and Python version.
+- `app_installed`, `app_updated` and `app_opened` carry `country`: a
+  two-letter code such as `DE`, worked out on your computer from its time zone
+  setting (`Europe/Berlin` becomes `DE`), so we can see roughly where Frame
+  Control is used without knowing your address. The time zone itself isn't
+  sent, and a setting that isn't a country's zone (such as UTC) sends nothing.
+  Copies that showed the first-run notice before it mentioned this (before
+  0.4.6) show it again, and don't send a country until it has been seen.
 - `frame_connected` carries `headset_id`: the first 16 hex digits of a
  SHA-256 hash of the headset's `/etc/machine-id`, worked out on the headset,
  so the machine-id itself never leaves it. It is the same for one headset on
@@ -44,9 +51,9 @@ computer, exactly as they were sent.

 | Event | When | Properties besides the common ones |
 |---|---|---|
-| `app_installed` | First run | |
-| `app_updated` | First run of a new version | `from_version` |
-| `app_opened` | At most once a day | |
+| `app_installed` | First run | `country` |
+| `app_updated` | First run of a new version | `from_version`, `country` |
+| `app_opened` | At most once a day | `country` |
 | `frame_connected` | The first time a SteamOS build is seen on each headset | `steamos_build`, `steamos_version`, `headset_id`, `headsets_saved` |
 | `tab_viewed` | The first click on each tab in a session | `tab` |
 | `install_finished` | Any install finishes, working or not | `kind` (apk, flatpak, steam, title, web), `ok`, `seconds`, `error_category` (only when `ok` is false), `installer_code`, `xr_layer_missing`, and see below |
@@ -45,6 +45,13 @@ files in Android/data** to bring the game's external files too (some games
 keep saves there). Progress shows in the panel; the result and any reason it
 stopped appear in the message log.

+You can choose **Import** on several games at once: they wait in the **Install
+queue** (above the Quest panel) and import one after another, together with
+installs from the Android store and My Meta library. **Remove** takes a game
+out of the queue before it starts. Each queued import runs on the headset that
+was selected when you queued it; if you switch headsets first, it stops with a
+message instead.
+
 A game with game data (an OBB folder, or Android/data when ticked) takes two
 imports, because Android can only take that data while the game's Lepton
 instance is running, and there is no way to start the instance without the
@@ -69,7 +76,11 @@ python3 ui/frame_quest.py import com.example.game --data --serial 1WMHH000XXXXXX
 The API is `GET /api/quest` (the Quest, or guidance when there isn't one, and
 its apps) and `POST /api/quest` with
 `{"action": "import", "package": "...", "serial": "...", "data": false}`,
-which returns a background job (`/api/job`) with a stage and percentage.
+which returns a background job (`/api/job`) with a stage and percentage. The
+job waits in the install queue first (`"queued": true`, stage `Queued: N
+installs before it`). `GET /api/queue` lists the running install and those
+waiting; `POST /api/queue` with `{"action": "remove", "job": "..."}` removes a
+waiting one (409 once it has started).

 ## What an import does

@@ -4,9 +4,9 @@ Frame Control's **Get games** section lists the games you own with each one's
 Steam Frame rating, installs them on the Frame, and searches the Steam store.
 This page covers how it works underneath, so you can do the same from a shell.

-For flat-to-VR mods and Beat Saber custom songs, see the
-[per-game feasibility table](mods.md). Mod support is separate from Steam's
-Frame rating; there is no mod installer yet.
+Installed Unreal Engine games also have a **VR mod** button that installs,
+starts and removes UEVR; see [VR mods](mods.md) for how it works and the
+per-game table. Mod support is separate from Steam's Frame rating.

 ## How it works

@@ -15,6 +15,29 @@ A fourth, a SteamOS VM, may come later ([issue #6](https://github.com/saphid/ste
 python3 -m unittest discover -s tests
 ```

+The Control Center is covered by `tests/test_control_center.py` and its Node
+behavior suite `tests/control_center.cjs` (also run by unittest discovery).
+They exercise production search, metrics, navigation and action handlers with
+mocked API/DOM boundaries: volume Apply/mute/readback, offline and failed reads,
+stale samples, selected-headset capture, duplicate actions and validation before
+SSH. Integration regressions run the production shared refresh, Home renderer,
+host callback and Control Center bootstrap: a pre-command status request must be
+drained before audio readback starts, and delayed startup retains sample receipt
+age, failed-read state and early host capabilities. The actual Flatpak install
+redraw cannot revive a failed sample; a new successful poll restores metrics and
+audio after either redraw or delayed mount. Draft regressions cover a pending headset
+switch and mute followed by Apply. Static asset HTTP tests and desktop/iPhone bundle checks catch missing CSS
+or JavaScript. A focused run is:
+
+```sh
+python3 -m unittest discover -s tests -p test_control_center.py -v
+node --test tests/control_center.cjs
+node --check ui/control-center.js
+```
+
+Responsive layout, actual browser rendering and keyboard/touch behavior still
+need browser verification. No Control Center test connects to a real headset.
+
 About 120 tests, a few seconds, on Python 3.9 and newer. GitHub Actions runs
 them on macOS, Windows and Linux. They don't pick up `tests/e2e`.

@@ -18,7 +18,7 @@ import tarfile
 from pathlib import Path

 ROOT = Path(__file__).resolve().parents[2]
-PATTERNS = ["ui/*.py", "ui/*.html", "ui/local-bin/*", "scripts/*.sh", "frame/android/*.sh", "frame/android/*.py",
+PATTERNS = ["ui/*.py", "ui/*.html", "ui/*.js", "ui/*.css", "ui/local-bin/*", "scripts/*.sh", "frame/android/*.sh", "frame/android/*.py",
            "frame/devkit-utils/**/*", "apk-catalog/*.py", "apk-catalog/pins.json", "apk-catalog/site/apps.js",
            "frame/kdeconnect/packages.json", "frame/kdeconnect/NOTICE.md", "frame/kdeconnect/LICENSES/*/*",
            "frame/kdeconnect/packages/*.pkg.tar.zst", "LICENSE", "THIRD_PARTY_NOTICES.md"]
@@ -0,0 +1,77 @@
+#!/usr/bin/env python3
+"""Regenerate ui/frame_timezones.py, the time zone -> country table usage statistics use.
+
+From the IANA tz database's zone.tab (each zone's country) and tzdata.zi (the old
+names that link to them), as installed on macOS and most Linux systems. It prints the
+old names left out because their zone is shared by several countries: check any new
+one, and add it to OLD_SPELLINGS if it's just an old spelling of a zone.tab zone.
+
+Run: python3 scripts/timezones.py [/usr/share/zoneinfo]
+"""
+import sys
+from pathlib import Path
+
+src = Path(sys.argv[1] if len(sys.argv) > 1 else '/usr/share/zoneinfo')
+country = {}
+for line in (src / 'zone.tab').read_text().splitlines():
+    if line and not line.startswith('#'):
+        cc, _, zone = line.split('\t')[:3]
+        country[zone] = cc
+links = {}
+for line in (src / 'tzdata.zi').read_text().splitlines():
+    if line.startswith('L '):
+        _, target, alias = line.split()
+        links[alias] = target
+def resolve(z):
+    for _ in range(5):
+        z = links.get(z, z)
+    return z
+
+
+# An old name links to a zone with the same clocks, which can be in another country
+# (Africa/Asmera, Eritrea, links to Africa/Nairobi), so it only gets a country when every
+# zone.tab zone sharing that target is in one country.
+countries_of = {}
+for zone, cc in country.items():
+    countries_of.setdefault(resolve(zone), set()).add(cc)
+# Clock rules rather than places (EET links to Athens, WET to Lisbon): no country.
+GENERIC = {'CET', 'EET', 'MET', 'WET', 'EST', 'MST', 'HST', 'CST6CDT', 'EST5EDT', 'MST7MDT', 'PST8PDT'}
+# Places that have left zone.tab, so their target's group looks like another country's.
+PLACES = {'Pacific/Johnston': 'UM'}
+dropped = []
+for alias in links:
+    if alias in country or alias in GENERIC or alias.startswith('Etc/'):
+        continue
+    if alias in PLACES:
+        country[alias] = PLACES[alias]
+        continue
+    ccs = countries_of.get(resolve(alias), set())
+    if len(ccs) == 1:
+        country[alias] = next(iter(ccs))
+    else:
+        dropped.append(alias)
+# Old names for a place in a zone.tab zone whose target is shared, checked by hand.
+OLD_SPELLINGS = {
+    'Africa/Asmera': 'Africa/Asmara', 'Africa/Timbuktu': 'Africa/Bamako', 'America/Coral_Harbour': 'America/Atikokan',
+    'America/Montreal': 'America/Toronto', 'America/Nipigon': 'America/Toronto', 'America/Thunder_Bay': 'America/Toronto',
+    'Canada/Eastern': 'America/Toronto', 'America/Virgin': 'America/St_Thomas', 'Antarctica/South_Pole': 'Antarctica/McMurdo',
+    'Asia/Rangoon': 'Asia/Yangon', 'Atlantic/Jan_Mayen': 'Arctic/Longyearbyen', 'Europe/Belfast': 'Europe/London',
+    'GB': 'Europe/London', 'GB-Eire': 'Europe/London', 'Iceland': 'Atlantic/Reykjavik', 'NZ': 'Pacific/Auckland',
+    'Pacific/Samoa': 'Pacific/Pago_Pago', 'US/Samoa': 'Pacific/Pago_Pago', 'Singapore': 'Asia/Singapore',
+    'US/Arizona': 'America/Phoenix', 'Pacific/Truk': 'Pacific/Chuuk', 'Pacific/Ponape': 'Pacific/Pohnpei',
+    'Pacific/Yap': 'Pacific/Chuuk'}
+for alias, zone in OLD_SPELLINGS.items():
+    if alias in links and zone in country:
+        country[alias] = country[zone]
+        dropped.remove(alias)
+version = (src / '+VERSION').read_text().strip() if (src / '+VERSION').exists() else 'unknown'
+rows = ''.join(f'    {z!r}: {c!r},\n' for z, c in sorted(country.items()))
+out = Path(__file__).resolve().parent.parent / 'ui' / 'frame_timezones.py'
+out.write_text(f'''"""Time zone name -> two-letter country, from the IANA tz database {version} (zone.tab, and
+the old names in tzdata.zi that link to its zones). Generated by scripts/timezones.py.
+Zones that aren't in one country, such as UTC, aren't here."""
+COUNTRY = {{
+{rows}}}
+''')
+print(f'{len(country)} zones, tz {version} -> {out}')
+print('no country (shared by several):', ' '.join(sorted(dropped)) or 'none')
@@ -0,0 +1,471 @@
+// Real Control Center logic with a minimal DOM; no network, browser or headset.
+const test = require('node:test');
+const assert = require('node:assert/strict');
+const fs = require('node:fs');
+const vm = require('node:vm');
+const cc = require('../ui/control-center.js');
+
+const sample = () => ({time:Date.now()/1000, hostname:'Test Frame', battery:{percent:99,status:'Discharging',watts:0,tempC:33,health:'Good'},
+  power:{type:'C PD [PD_PPS]',watts:18}, disk:{home:{total:256*1073741824,free:128*1073741824}},
+  memory:{total:16*1073741824,available:6*1073741824}, wifi:{ssid:'Test LAN',signal:80},
+  performance:{compositorFps:90,appFps:45,frameMs:11.11,gpuMs:3,cpuPercent:12,gpuMHz:600},
+  volume:{level:.4,muted:false}, os:{version:'0.4.1',build:'test-build'},services:{steamvr:true}, thermalAlerts:[],games:[],flatpaks:[]});
+function fixture() {
+  const elements = new Map();
+  function element(id) {
+    if (!elements.has(id)) elements.set(id, {id,hidden:false,disabled:false,textContent:'',innerHTML:'',value:'',dataset:{},
+      classList:{toggle(){}},querySelectorAll(){return [];},setAttribute(key,value){this[key]=value;},addEventListener(key,callback){this[key]=callback;},focus(){this.focused=true;}});
+    return elements.get(id);
+  }
+  const cards = cc.catalog.map(item=>{const e=element(item.id);e.dataset.ccCard=item.id;return e;});
+  const buttons = cc.categories.map(([id])=>{const e=element('category-'+id);e.dataset.ccCategory=id;e.querySelector=()=>element('count-'+id);return e;});
+  const metrics = Object.keys(cc.metrics(null)).map(id=>{const e=element('metric-'+id);e.dataset.ccMetric=id;return e;});
+  const page = element('controlCenter');
+  page.querySelectorAll = selector => selector === '[data-cc-category]' ? buttons : selector === '[data-cc-metric]' ? metrics : selector === '[data-cc-mac-link]' ? [element('macLink')] : [];
+  page.querySelector = selector => selector === '[href="#connection"]' ? element('connectionLink') : cards.find(e=>selector === `[data-cc-card="${e.dataset.ccCard}"]`);
+  return {document:{getElementById:element},element,cards,buttons};
+}
+function mounted(options = {}) {
+  const f = fixture(), calls = [];
+  let context = {online:true,generation:1,device:'frame-a'}, refreshes = 0, opened = 0;
+  const ui = cc.mount({document:f.document,platform:'darwin',api:async(...args)=>{calls.push(args);return {message:'Volume updated'};},
+    refresh:async()=>{refreshes++;},getContext:()=>context,openConnection:()=>opened++,...options});
+  return {...f,ui,calls,get context(){return context;},set context(v){context=v;},get refreshes(){return refreshes;},get opened(){return opened;}};
+}
+const pageSource = fs.readFileSync(require.resolve('../ui/index.html'),'utf8');
+const deferred = () => { let resolve, reject; const promise=new Promise((ok,bad)=>{resolve=ok;reject=bad;});return {promise,resolve,reject}; };
+const flush = async () => { for(let i=0;i<12;i++)await Promise.resolve(); };
+// Execute the actual shared refresh/deduplication, host callback and mount
+// bootstrap, including the real Home-to-Control status handoff. Only unrelated
+// rendering helpers, timers and transport are stubbed.
+function sharedPage({productionApi=false} = {}) {
+  const f=fixture(), requests=[], writes=[], host=deferred(), job=deferred();
+  const context={document:f.document,FrameControlCenter:cc,window:{frameApp:{setUpConnection(){}}},
+    Date,setInterval,clearInterval,setTimeout:()=>1,clearTimeout(){},$:f.element,QUICK:[],installing:new Set(),
+    battery(){},setVolume(){},gb:String,dur:String,esc:String,meter(){},toast(){},
+    runJob(title,id){context.installing.add(id);return job.promise;},
+    api:(path,body,device)=>{
+      if(path==='/api/host')return host.promise;
+      if(path==='/api/status'){const request=deferred();requests.push(request);return request.promise;}
+      writes.push({path,body,device});return Promise.resolve({message:'Volume updated'});
+    },renderPerformance(){},setConn(){},setOnline(ok){vm.runInContext(`online = ${ok}`,context);},log(){},failed(){},
+    watchConnection(){context.watched=true;}};
+  vm.createContext(context);
+  const stateDeclaration=pageSource.match(/let state = null[^\n]*/)[0];
+  vm.runInContext(stateDeclaration+'\nlet online = true, devGen = 1; const HOST = {computer:"computer"}; window.connDevice="frame-a";',context);
+  const refreshStart=pageSource.indexOf('let refreshing = null'),refreshEnd=pageSource.indexOf('// ---- our VR HUD',refreshStart);
+  const renderStart=pageSource.indexOf('function render(s) {'),renderEnd=pageSource.indexOf('// ---- view ----',renderStart);
+  vm.runInContext(pageSource.slice(renderStart,renderEnd)+pageSource.slice(refreshStart,refreshEnd),context);
+  if(productionApi) {
+    // Keep api/onConnection/setOnline intact: defer fetch itself, not api(), so
+    // rejection classification and the real switch/reset notifications run.
+    context.fetch=(path,opts)=>{
+      if(path==='/api/host')return host.promise.then(data=>({ok:true,status:200,json:async()=>data}));
+      const request=deferred();request.path=path;request.opts=opts;requests.push(request);return request.promise;
+    };
+    Object.assign(context,{renderPill(){},renderConnDlg(){},renderBanner(){},viaText(){},netLabel(){},
+      resetShots(){},loadDevices(){},renderDevices(){},renderTests(){},reloadAll(){},checkContactPrompt(){}});
+    vm.runInContext(`const UI_KEY = 'test-only';
+      const link = {s:null,device:'frame-a',phase:'connected',rev:0,net:null};
+      const disp = {}, gm = {seq:0}, cat = {}, wi = {};
+      let viewGen = 0, lastImg = null, lastShot = null, androidApps = [], titlesSeq = 0, page = 'control';`,context);
+    const apiStart=pageSource.indexOf('const HEADSET_FREE ='),apiEnd=pageSource.indexOf('// What a panel shows',apiStart);
+    const onlineStart=pageSource.indexOf('function setOnline('),onlineEnd=pageSource.indexOf('function reloadAll()',onlineStart);
+    const connectionStart=pageSource.indexOf('function onConnection('),connectionEnd=pageSource.indexOf('// Read the event stream',connectionStart);
+    vm.runInContext(pageSource.slice(apiStart,apiEnd)+pageSource.slice(onlineStart,onlineEnd)+pageSource.slice(connectionStart,connectionEnd),context);
+  }
+  const installStart=pageSource.indexOf('function installFlatpak(id) {'),installEnd=pageSource.indexOf('$("fpInstall").onclick',installStart);
+  vm.runInContext(pageSource.slice(installStart,installEnd),context);
+  const hostStart=pageSource.lastIndexOf('api("/api/host").then(h =>'),hostEnd=pageSource.indexOf('</script>',hostStart);
+  vm.runInContext(pageSource.slice(hostStart,hostEnd),context);
+  const bootstrapStart=pageSource.indexOf('window.frameControlCenter = FrameControlCenter.mount('),bootstrapEnd=pageSource.indexOf('</script>',bootstrapStart);
+  return {...f,context,requests,writes,host,refresh:()=>vm.runInContext('refresh()',context),
+    switchHeadset:()=>vm.runInContext('onConnection({now:Date.now()/1000,phase:"connected",devices_rev:0,device:{id:"frame-b",name:"Second Frame"}})',context),
+    installFlatpak:()=>vm.runInContext('installFlatpak("test.app")',context),
+    mount(){vm.runInContext(pageSource.slice(bootstrapStart,bootstrapEnd),context);return context.window.frameControlCenter;}};
+}
+const response = data => ({ok:true,status:200,json:async()=>data});
+for(const rejection of ['transport','body'])for(const delayedMount of [false,true]) {
+  test(`production ${rejection} rejection from A preserves B ${delayedMount ? 'before delayed mount' : 'after mount'}`, async t => {
+    const f=sharedPage({productionApi:true});
+    if(!delayedMount){const ui=f.mount();t.after(()=>ui.destroy());}
+    const old=f.refresh(),body=deferred();
+    assert.equal(f.requests[0].path,'/api/status');
+    if(rejection==='body') {
+      f.requests[0].resolve({ok:true,status:200,json:()=>body.promise});await flush();
+    }
+    f.switchHeadset();
+    assert.equal(f.requests.length,2,'real connected B callback starts its own status fetch');
+    const next=sample();next.hostname='Second Frame';next.battery.percent=20;next.volume.level=.2;
+    f.requests[1].resolve(response(next));await flush();
+    const receipt=vm.runInContext('stateReceivedAt',f.context);
+    assert.equal(vm.runInContext('stateRead.valid && online && devGen === 2',f.context),true);
+    if(!delayedMount)assert.equal(f.element('metric-battery').textContent,'20%');
+    (rejection==='body' ? body : f.requests[0]).reject(Error('Old A request failed'));await old;
+    assert.equal(vm.runInContext('stateRead.valid',f.context),true,'A must not invalidate B');
+    assert.equal(vm.runInContext('stateRead.error',f.context),null);
+    assert.equal(vm.runInContext('stateReceivedAt',f.context),receipt);
+    if(delayedMount){const ui=f.mount();t.after(()=>ui.destroy());}
+    const assertB=()=>{
+      assert.equal(f.element('ccDeviceName').textContent,'Second Frame');
+      assert.equal(f.element('metric-battery').textContent,'20%');
+      assert.equal(f.element('ccVolume').value,20);
+      for(const id of ['ccVolume','ccApplyVolume','ccMute'])assert.equal(f.element(id).disabled,false);
+      assert.doesNotMatch(f.element('ccSampleState').textContent,/No live sample|local server|Old A/);
+    };
+    assertB();vm.runInContext('render(state)',f.context);assertB();
+    assert.equal(f.requests.length,2,'preservation and redraw need no recovery poll');
+    // An ordinary failure on B must still invalidate the current sample.
+    const failed=f.refresh();
+    if(rejection==='body')f.requests[2].resolve({ok:true,status:200,json:async()=>{throw Error('B body failed');}});
+    else f.requests[2].reject(Error('B transport failed'));
+    await failed;
+    assert.equal(vm.runInContext('stateRead.valid',f.context),false);
+    assert.equal(f.element('metric-battery').textContent,'Unavailable');
+    for(const id of ['ccVolume','ccApplyVolume','ccMute'])assert.equal(f.element(id).disabled,true);
+    assert.equal(f.element('ccStatusLabel').textContent,'No live sample');
+  });
+}
+test('production headset-free API keeps transport errors and responses across a switch', async t => {
+  for(const failure of [false,true]) {
+    const f=sharedPage({productionApi:true}),ui=f.mount();t.after(()=>ui.destroy());
+    const pending=vm.runInContext('api("/api/devices")',f.context);
+    const result=pending.then(value=>({value}),error=>({error}));
+    f.switchHeadset();f.requests[1].resolve(response(sample()));await flush();
+    if(failure)f.requests[0].reject(Error('Device list transport failed'));
+    else f.requests[0].resolve(response({devices:['frame-b']}));
+    const settled=await result;
+    if(failure){assert.equal(settled.error.stale,undefined);assert.match(settled.error.message,/local server isn't running/);}
+    else assert.deepEqual(settled.value,{devices:['frame-b']});
+    assert.equal(vm.runInContext('stateRead.valid',f.context),true);
+  }
+});
+test('search finds settings by aliases, all words, category and guidance', () => {
+  const find = (q,category='all')=>cc.catalog.filter(item=>cc.matches(item,q,category)).map(item=>item.id);
+  assert.ok(find('DPI').includes('display'));
+  assert.ok(find('sleep inactivity').includes('power'));
+  assert.ok(find('MOTION SICKNESS').includes('playspace'));
+  assert.ok(find('font','apps').includes('display'));
+  assert.deepEqual(find('font','vr'),[]);
+  assert.deepEqual(find('<script>alert(1)</script>'),[]);
+  assert.ok(find('   ').length > 20);
+});
+test('metrics use real fields, preserve zero, and distinguish unavailable values', () => {
+  const m = cc.metrics(sample());
+  assert.equal(m.battery,'99%');
+  assert.equal(m.power,'0 W');
+  assert.match(m.batteryDetail,/not charging/);
+  assert.equal(m.fps,'90'); assert.equal(m.appFps,'45');
+  assert.equal(m.storage,'128 GiB'); assert.equal(m.memory,'10 GiB');
+  assert.equal(m.thermal,'No hot / critical trip reported');
+  assert.equal(cc.metrics(null).fps,'Unavailable');
+  assert.equal(cc.metrics({performance:{appFps:null,gpuMHz:0,cpuPercent:0}}).appFps,'Unavailable');
+  assert.equal(cc.metrics({performance:{cpuPercent:0}}).cpu,'0%');
+  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('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});
+  for (const change of [{level:-.1},{level:1.1},{level:NaN},{level:Infinity},{level:'0.5'},{level:null},{muted:'false'},{unknown:true},{}]) {
+    await assert.rejects(controller.audio(change),/valid mute state/);
+  }
+  context.online=false;await assert.rejects(controller.audio({level:.5}),/Connect and refresh/);
+  context.online=true;context.fresh=false;await assert.rejects(controller.audio({muted:true}),/Connect and refresh/);
+  assert.equal(calls.length,0);
+});
+test('audio uses the captured device, prevents duplicate writes, and ignores switched-headset success', async () => {
+  let context={online:true,fresh:true,sample:sample(),device:'frame-a',generation:1},complete,calls=[];
+  const controller=cc.createController({api:(...args)=>{calls.push(args);return new Promise(r=>complete=r);},getContext:()=>context});
+  const pending=controller.audio({level:.7});
+  await assert.rejects(controller.audio({muted:true}),/still in progress/);
+  assert.deepEqual(calls,[['/api/volume',{level:.7},'frame-a']]);
+  context={...context,device:'frame-b',generation:2};complete({message:'Done'});
+  assert.equal(await pending,null);assert.equal(controller.busy,false);
+});
+test('controller surfaces real API errors and allows a deliberate retry', async () => {
+  let calls=0;
+  const controller=cc.createController({api:async()=>{if(++calls===1)throw Error('SSH connection lost');return {message:'Done'};},
+    getContext:()=>({online:true,fresh:true,sample:sample(),device:'frame-a',generation:1})});
+  await assert.rejects(controller.audio({muted:true}),/SSH connection lost/);
+  assert.equal(controller.busy,false);
+  assert.deepEqual(await controller.audio({muted:true}),{message:'Done'});
+});
+test('mounted controls only write on Apply or Mute, show readback, and reset on switch', async t => {
+  const f=mounted();t.after(()=>f.ui.destroy());
+  assert.equal(f.element('ccApplyVolume').disabled,true);
+  f.ui.status(sample());
+  assert.equal(f.element('ccApplyVolume').disabled,false);
+  assert.equal(f.element('ccVolume').value,40);
+  f.element('ccVolume').value='65';f.element('ccVolume').oninput();
+  assert.equal(f.calls.length,0);
+  assert.equal(f.element('ccVolumeValue').textContent,'65%');
+  f.ui.status(sample()); // a poll must not overwrite an unapplied value
+  assert.equal(f.element('ccVolume').value,'65');
+  await f.element('ccApplyVolume').onclick();
+  assert.deepEqual(f.calls,[['/api/volume',{level:.65},'frame-a']]);
+  assert.equal(f.refreshes,1);
+  await f.element('ccMute').onclick();
+  assert.deepEqual(f.calls[1],['/api/volume',{muted:true},'frame-a']);
+  f.context={online:null,generation:2,device:'frame-b'};f.ui.reset();
+  assert.equal(f.element('ccApplyVolume').disabled,true);
+  assert.equal(f.element('metric-battery').textContent,'Unavailable');
+  assert.equal(f.element('ccAudioResult').textContent,'');
+});
+test('offline/errors clear live readings, disable audio and keep companion navigation usable', async t => {
+  const f=mounted();t.after(()=>f.ui.destroy());f.ui.status(sample());
+  f.context.online=false;f.ui.connection(false);
+  assert.equal(f.element('metric-fps').textContent,'Unavailable');
+  assert.equal(f.element('ccVolume').disabled,true);
+  await f.element('ccMute').onclick();
+  assert.equal(f.calls.length,0);
+  assert.match(f.element('ccAudioResult').textContent,/Connect and refresh/);
+  assert.equal(f.cards.find(c=>c.dataset.ccCard==='privacy').hidden,false);
+  f.ui.unavailable(Error('Local server is unavailable'));
+  assert.match(f.element('ccSampleState').textContent,/Local server is unavailable/);
+  f.context.online=true;f.ui.status(sample());
+  assert.equal(f.element('ccVolume').disabled,false);
+});
+test('mounted audio failure is visible and never reports success', async t => {
+  const f=mounted({api:async()=>{throw Error('Permission denied');}});t.after(()=>f.ui.destroy());f.ui.status(sample());
+  await f.element('ccApplyVolume').onclick();
+  assert.match(f.element('ccAudioResult').textContent,/Couldn’t apply audio: Permission denied/);
+  assert.equal(f.element('ccApplyVolume').disabled,false);
+  assert.equal(f.refreshes,0);
+});
+test('audio confirmation depends on fresh readback rather than command acknowledgment', async t => {
+  let expected=.65, mode='confirmed';
+  const f=mounted({refresh:async()=>{
+    if(mode==='offline')return f.ui.unavailable(Error('Headset unreachable'));
+    const reading=sample();reading.volume.level=mode==='different' ? .64 : expected;f.ui.status(reading);
+  }});t.after(()=>f.ui.destroy());f.ui.status(sample());
+  f.element('ccVolume').value='65';await f.element('ccApplyVolume').onclick();
+  assert.match(f.element('ccAudioResult').textContent,/Confirmed: 65%, unmuted/);
+  mode='different';f.element('ccVolume').value='65';await f.element('ccApplyVolume').onclick();
+  assert.match(f.element('ccAudioResult').textContent,/reported output differs: 64%/);
+  mode='offline';await f.element('ccApplyVolume').onclick();
+  assert.match(f.element('ccAudioResult').textContent,/command sent; current output could not be confirmed/);
+  assert.equal(f.element('ccApplyVolume').disabled,true);
+});
+test('pending audio never overwrites the new headset with old success or error', async t => {
+  let complete;
+  const f=mounted({api:()=>new Promise(resolve=>{complete=resolve;})});t.after(()=>f.ui.destroy());f.ui.status(sample());
+  const pending=f.element('ccMute').onclick();
+  assert.equal(f.element('ccApplyVolume').disabled,true);
+  f.context={online:true,generation:2,device:'frame-b'};f.ui.reset();
+  const newSample=sample();newSample.hostname='Second Frame';newSample.volume.muted=true;f.ui.status(newSample);
+  complete({message:'Old headset muted'});await pending;
+  assert.equal(f.element('ccDeviceName').textContent,'Second Frame');
+  assert.equal(f.element('ccAudioResult').textContent,'');
+  assert.equal(f.refreshes,0);
+  assert.equal(f.element('ccMute').textContent,'Unmute');
+  f.ui.unavailable({stale:true,message:'Switched headsets'});
+  assert.equal(f.element('metric-battery').textContent,'99%');
+  assert.equal(f.element('ccMute').disabled,false);
+});
+test('pending old-headset volume cannot become a draft on the new headset', async t => {
+  for(const failure of [false,true]) {
+    const request=deferred(),f=mounted({api:()=>request.promise});t.after(()=>f.ui.destroy());
+    f.ui.status(sample());f.element('ccVolume').value='65';f.element('ccVolume').oninput();
+    const pending=f.element('ccApplyVolume').onclick();
+    f.context={online:true,generation:2,device:'frame-b'};f.ui.reset();
+    const next=sample();next.volume.level=.2;f.ui.status(next);
+    assert.equal(f.element('ccApplyVolume').disabled,true);
+    if(failure)request.reject(Error('Old headset failed'));else request.resolve({message:'Done'});
+    await pending;
+    assert.equal(f.element('ccVolume').value,20);
+    assert.equal(f.element('ccVolumeValue').textContent,'20%');
+    assert.equal(f.element('ccAudioReadback').textContent,'Reported 20% · unmuted');
+    assert.equal(f.element('ccApplyVolume').disabled,false);
+    assert.equal(f.element('ccAudioResult').textContent,'');
+  }
+});
+test('production host response works before and after mounting with the actual bridge shape', async t => {
+  for(const early of [true,false]) {
+    const f=sharedPage();let ui;
+    if(!early){ui=f.mount();t.after(()=>ui.destroy());assert.equal(f.element('macLink').hidden,true);}
+    f.host.resolve({os:'macOS',mobile:false});await flush();
+    if(early){ui=f.mount();t.after(()=>ui.destroy());}
+    assert.equal(f.context.watched,true);
+    assert.equal(f.element('macLink').hidden,false);
+    f.element('ccSearch').value='mac';f.element('ccSearch').input();
+    assert.equal(f.element('macLink').hidden,false);
+    ui.host({os:'SteamOS',mobile:true});assert.equal(f.element('macLink').hidden,true);
+  }
+});
+test('production shared refresh drains a pre-command request then samples after acknowledgment', async t => {
+  const f=sharedPage(),ui=f.mount();t.after(()=>ui.destroy());ui.status(sample());
+  const prior=f.refresh();assert.equal(f.requests.length,1);
+  assert.equal(f.refresh(),prior); // the ordinary poll/manual deduplication still holds
+  f.element('ccVolume').value='65';f.element('ccVolume').oninput();
+  const command=f.element('ccApplyVolume').onclick();await flush();
+  assert.equal(f.writes.length,1);assert.equal(f.requests.length,1);
+  f.requests[0].resolve(sample());await prior;await flush();
+  assert.equal(f.requests.length,2,'readback must issue a real post-command status request');
+  assert.doesNotMatch(f.element('ccAudioResult').textContent,/Confirmed|reported output differs/);
+  assert.equal(f.element('ccApplyVolume').disabled,true);
+  const after=sample();after.volume.level=.65;f.requests[1].resolve(after);await command;
+  assert.match(f.element('ccAudioResult').textContent,/Confirmed: 65%, unmuted/);
+  assert.equal(f.element('ccApplyVolume').disabled,false);
+});
+test('production audio readback survives an old poll failure and treats its own failed read as unconfirmed', async t => {
+  for(const failedReadback of [false,true]) {
+    const f=sharedPage(),ui=f.mount();t.after(()=>ui.destroy());ui.status(sample());
+    const prior=f.refresh();f.element('ccVolume').value='65';f.element('ccVolume').oninput();
+    const command=f.element('ccApplyVolume').onclick();await flush();
+    f.requests[0].reject(Error('Pre-command poll failed'));await prior;await flush();
+    assert.equal(f.requests.length,2);
+    assert.equal(f.element('ccApplyVolume').disabled,true);
+    if(failedReadback)f.requests[1].reject(Error('Readback unavailable'));
+    else {const after=sample();after.volume.level=.64;f.requests[1].resolve(after);}
+    await command;
+    assert.match(f.element('ccAudioResult').textContent,failedReadback ? /command sent; current output could not be confirmed/ : /reported output differs: 64%/);
+    assert.equal(f.element('ccApplyVolume').disabled,failedReadback);
+  }
+});
+test('production Flatpak redraw cannot revive a failed status; only a fresh successful poll recovers', async t => {
+  const f=sharedPage(),ui=f.mount();t.after(()=>ui.destroy());
+  const first=f.refresh(),reading=sample();f.requests[0].resolve(reading);await first;
+  const receipt=vm.runInContext('stateReceivedAt',f.context);
+  assert.equal(f.element('ccApplyVolume').disabled,false);
+  const failed=f.refresh();f.requests[1].reject(Error('Synthetic status parsing error'));await failed;
+  assert.equal(f.element('metric-battery').textContent,'Unavailable');
+  assert.equal(f.element('ccApplyVolume').disabled,true);
+  f.installFlatpak(); // actual production render(state), with job held pending
+  assert.equal(f.requests.length,2,'redraw must not start a replacement reading');
+  assert.equal(vm.runInContext('stateReceivedAt',f.context),receipt);
+  assert.equal(f.element('metric-battery').textContent,'Unavailable');
+  assert.equal(f.element('ccStatusLabel').textContent,'No live sample');
+  assert.match(f.element('ccSampleState').textContent,/Synthetic status parsing error/);
+  for(const id of ['ccVolume','ccApplyVolume','ccMute'])assert.equal(f.element(id).disabled,true);
+  const fresh=f.refresh();
+  assert.equal(f.element('ccApplyVolume').disabled,true,'starting a poll does not clear failure');
+  const next=sample();next.battery.percent=98;next.volume.level=.2;
+  f.requests[2].resolve(next);await fresh;
+  assert.equal(f.element('metric-battery').textContent,'98%');
+  assert.equal(f.element('ccVolume').value,20);
+  assert.equal(f.element('ccApplyVolume').disabled,false);
+  assert.doesNotMatch(f.element('ccSampleState').textContent,/Synthetic status parsing error/);
+});
+test('delayed production bootstrap retains failed-read state and fresh-poll recovery', async t => {
+  for(const priorSuccess of [true,false]) {
+    const f=sharedPage();
+    if(priorSuccess){const first=f.refresh();f.requests[0].resolve(sample());await first;}
+    const failed=f.refresh();f.requests.at(-1).reject(Error('Status failed before mount'));await failed;
+    const calls=f.requests.length,ui=f.mount();t.after(()=>ui.destroy());
+    assert.equal(f.requests.length,calls);
+    assert.equal(f.element('metric-battery').textContent,'Unavailable');
+    assert.equal(f.element('ccStatusLabel').textContent,'No live sample');
+    assert.match(f.element('ccSampleState').textContent,/Status failed before mount/);
+    for(const id of ['ccVolume','ccApplyVolume','ccMute'])assert.equal(f.element(id).disabled,true);
+    const fresh=f.refresh();assert.equal(f.element('ccApplyVolume').disabled,true);
+    f.requests.at(-1).resolve(sample());await fresh;
+    assert.equal(f.element('metric-battery').textContent,'99%');
+    assert.equal(f.element('ccApplyVolume').disabled,false);
+    assert.doesNotMatch(f.element('ccSampleState').textContent,/Status failed before mount/);
+  }
+});
+test('same-object replay preserves invalidation and receipt age after a failed reading', t => {
+  const f=mounted();t.after(()=>f.ui.destroy());const reading=sample();
+  f.ui.status(reading);f.ui.unavailable(Error('Status failure'));
+  f.ui.status(reading,Date.now()+1000);
+  assert.equal(f.element('metric-battery').textContent,'Unavailable');
+  assert.equal(f.element('ccApplyVolume').disabled,true);
+  assert.match(f.element('ccSampleState').textContent,/Status failure/);
+  f.ui.status(sample());assert.equal(f.element('ccApplyVolume').disabled,false);
+});
+test('delayed production bootstrap preserves client receipt age despite headset clock skew', async t => {
+  const original=Date.now;let now=1000000;Date.now=()=>now;t.after(()=>{Date.now=original;});
+  const f=sharedPage(),prior=f.refresh();const reading=sample();reading.time-=3600;
+  f.requests[0].resolve(reading);await prior;
+  now+=91000;const ui=f.mount();t.after(()=>ui.destroy());
+  assert.equal(f.element('metric-battery').textContent,'Unavailable');
+  assert.equal(f.element('ccApplyVolume').disabled,true);
+  assert.match(f.element('ccSampleState').textContent,/expired/);
+  const fresh=f.refresh();f.requests[1].resolve(sample());await fresh;
+  assert.equal(f.element('ccApplyVolume').disabled,false);
+  assert.equal(f.element('metric-battery').textContent,'99%');
+});
+test('sample replay cannot renew receipt age; fresh receipts tolerate missing or skewed headset time', t => {
+  const original=Date.now;let now=1000000;Date.now=()=>now;t.after(()=>{Date.now=original;});
+  const f=mounted();t.after(()=>f.ui.destroy());const reading=sample();f.ui.status(reading);
+  now+=91000;f.ui.status(reading);
+  assert.equal(f.element('ccApplyVolume').disabled,true);
+  assert.equal(f.element('metric-battery').textContent,'Unavailable');
+  for(const time of [undefined,null,'invalid',NaN,Infinity,now/1000-3600,now/1000+3600]) {
+    f.ui.status({...sample(),time});
+    assert.equal(f.element('ccApplyVolume').disabled,false);
+    assert.doesNotMatch(f.element('ccSampleState').textContent,/Invalid Date/);
+  }
+  for(const receipt of [null,NaN,Infinity,now+1000,now-91000]) {
+    f.ui.status(sample(),receipt);assert.equal(f.element('ccApplyVolume').disabled,true);
+  }
+});
+test('mute-only readback preserves an unapplied volume until Apply sends it', async t => {
+  let reading=sample();const f=mounted({api:async(path,change,device)=>{
+    f.calls.push([path,change,device]);reading={...reading,volume:{...reading.volume,...change}};return {message:'Done'};
+  },refresh:async()=>f.ui.status({...reading})});t.after(()=>f.ui.destroy());f.ui.status(reading);
+  f.element('ccVolume').value='65';f.element('ccVolume').oninput();
+  await f.element('ccMute').onclick();
+  assert.deepEqual(f.calls[0],['/api/volume',{muted:true},'frame-a']);
+  assert.equal(f.element('ccVolume').value,'65');assert.equal(f.element('ccVolumeValue').textContent,'65%');
+  assert.match(f.element('ccAudioReadback').textContent,/Reported 40% · muted/);
+  assert.match(f.element('ccAudioResult').textContent,/Confirmed: 40%, muted/);
+  await f.element('ccApplyVolume').onclick();
+  assert.deepEqual(f.calls[1],['/api/volume',{level:.65},'frame-a']);
+  assert.equal(f.element('ccVolume').value,65);
+  assert.match(f.element('ccAudioResult').textContent,/Confirmed: 65%, muted/);
+});
+test('live samples expire even when the status poll is paused', t => {
+  const original=Date.now;let now=100000;Date.now=()=>now;t.after(()=>{Date.now=original;});
+  const f=mounted();t.after(()=>f.ui.destroy());f.ui.status(sample());
+  now+=91000;
+  // A connection update must also re-check freshness before enabling a control.
+  f.ui.connection(true);
+  assert.equal(f.element('ccApplyVolume').disabled,true);
+});
+test('mounted filters show empty state, counts, reset and host-dependent features', t => {
+  const f=mounted();t.after(()=>f.ui.destroy());
+  f.element('ccSearch').value='dpi';f.element('ccSearch').input();
+  assert.equal(f.cards.find(c=>c.dataset.ccCard==='display').hidden,false);
+  assert.equal(f.element('ccResultCount').textContent,'1 section');
+  f.element('ccSearch').value='nothing-matches-this';f.element('ccSearch').input();
+  assert.equal(f.element('ccEmpty').hidden,false);
+  f.element('ccResetFilter').onclick();assert.equal(f.element('ccEmpty').hidden,true);
+  f.ui.host({os:'Windows'});assert.equal(f.element('macLink').hidden,true);
+  assert.equal(f.cards.find(c=>c.dataset.ccCard==='mac').hidden,false);
+  f.ui.host({os:'macOS'});assert.equal(f.element('macLink').hidden,false);
+  f.ui.host({os:'SteamOS',mobile:true});assert.equal(f.element('macLink').hidden,true);
+  f.element('connectionLink').onclick({preventDefault(){}});assert.equal(f.opened,1);
+});
+test('every linked workflow selects its real page and section, preserving shortcuts', () => {
+  const html=fs.readFileSync(require.resolve('../ui/index.html'),'utf8');
+  const start=html.indexOf('const PAGES ='),end=html.indexOf('window.addEventListener("hashchange", showPage);',start);
+  const ids=new Set([...html.matchAll(/\bid="([^"]+)"/g)].map(m=>m[1]));
+  let activePage,scrolled;
+  const nodes=['home','games','android','tools','devices','control'].map(page=>({dataset:{page},classList:{toggle(key,on){if(on)activePage=page;}}}));
+  const sections=new Map();
+  const context={location:{hash:'#control'},document:{querySelectorAll:s=>s==='.page'?nodes:[],title:''},
+    window:{scrollTo(){}},$:id=>{
+      if(!ids.has(id))return null;
+      if(!sections.has(id))sections.set(id,{hidden:false,scrollIntoView(){scrolled=id;}});
+      return sections.get(id);
+    },live:false,toggleLive(){},loadMacView(){},loadPanelSwitcher(){}};
+  const androidStart=html.indexOf('function showAndroidTab(');
+  const androidEnd=html.indexOf("document.querySelectorAll('[data-store-tab]').forEach(button => button.onclick",androidStart);
+  vm.createContext(context);vm.runInContext(html.slice(androidStart,androidEnd)+html.slice(start,end)+'\nPAGES.push("devices", "control");',context);
+  vm.runInContext('showPage()',context);assert.equal(activePage,'control');
+  const expected={view:'home',shots:'home',vrTools:'home',comfort:'home',pad:'home',library:'games',getgames:'games',sideloaded:'games',android:'android',display:'android',androidLibrary:'android',appStore:'android',
+    power:'tools',transfer:'tools',media:'tools',apps:'tools',artworkSettings:'tools',privacy:'tools',panels:'tools',macview:'tools',devices:'devices'};
+  for(const item of cc.catalog) for(const [href] of item.links||[]) {
+    if(!href.startsWith('#')||href==='#connection')continue;
+    const id=href.slice(1);assert.ok(ids.has(id)||['android','devices'].includes(id),href);
+    context.location.hash=href;scrolled=null;vm.runInContext('showPage()',context);
+    assert.equal(activePage,expected[id],href);
+    if(!['android','devices'].includes(id))assert.equal(scrolled,id,href);
+    if(id==='display'||id==='androidLibrary') { assert.equal(sections.get('androidLibrary').hidden,false);assert.equal(sections.get('appStore').hidden,true); }
+    if(id==='appStore') { assert.equal(sections.get('appStore').hidden,false);assert.equal(sections.get('androidLibrary').hidden,true); }
+  }
+  assert.equal(vm.runInContext('PAGES[4]',context),'devices');
+  assert.equal(vm.runInContext('PAGES[5]',context),'control');
+});
@@ -23,9 +23,9 @@ const metaLib = { connected: true, results: new Map(), apps: [
    data_files: 0, skipped_files: ["main.com.crytek.climb.obb"] },
  { id: "2", title: "Beat Saber", package: "com.beatgames.beatsaber", problem: "Meta's API said HTTP 500", skipped_files: [] },
 ] };
-const render = new Function("$", "metaLib", "androidApps", "installing",
+const render = new Function("$", "metaLib", "androidApps", "installing", "queued",
  grab("esc") + grab("questSize") + "const META_VERDICT = {};\n" + grab("renderMetaApps") + "renderMetaApps();");
-render(id => els[id], metaLib, [], new Set());
+render(id => els[id], metaLib, [], new Set(["meta:1"]), new Set(["meta:1"]));
 const html = els.metaApps.innerHTML;
 if (els.metaCount.textContent !== "2 apps") fail("count: " + els.metaCount.textContent);
 const climb = html.split('class="item"')[1];
@@ -34,7 +34,10 @@ if (!/Not installed: 1 required data file \(main\.com\.crytek\.climb\.obb\)/.tes
 const saber = html.split('class="item"')[2];
 if (!/<div class="s v-no"[^>]*>Meta&#39;s API said HTTP 500</.test(saber)) fail("problem not on its own line: " + saber);
 if (/Not installed/.test(saber)) fail("warning without skipped files");
+// Waiting in the install queue: marked, and not offered again.
+if (!/<span class="tag">Queued<\/span>/.test(climb) || !/data-meta-install="1" disabled/.test(climb)) fail("queued not shown: " + climb);
+if (/Queued|disabled/.test(saber)) fail("queued on the wrong row: " + saber);
 metaLib.apps = metaLib.apps.slice(0, 1);
-render(id => els[id], metaLib, [], new Set());
+render(id => els[id], metaLib, [], new Set(), new Set());
 if (els.metaCount.textContent !== "1 app") fail("singular count: " + els.metaCount.textContent);
 console.log("ok");
@@ -0,0 +1,75 @@
+"""Control Center API guards and shared-page behavior, without a real headset."""
+import sandbox  # noqa: F401 (first: isolates app state, SSH and telemetry)
+import importlib.util
+import json
+from pathlib import Path
+import shutil
+import subprocess
+import sys
+import unittest
+from unittest import mock
+
+ROOT = Path(__file__).resolve().parents[1]
+sys.path.insert(0, str(ROOT / 'ui'))
+import server
+import frame_status
+
+
+class AudioValidation(unittest.TestCase):
+    def test_invalid_values_do_not_touch_device_even_with_valid_mute(self):
+        invalid = [{}, {'level': None}, {'level': True}, {'level': '0.5'}, {'level': []},
+                   {'level': float('nan')}, {'level': float('inf')}, {'level': -1}, {'level': 2},
+                   {'muted': 'false'}, {'muted': 1}, {'muted': None}, {'action': 'mute'},
+                   {'level': -1, 'muted': True}, {'level': .5, 'muted': 'yes'}]
+        for body in invalid:
+            with self.subTest(body=body), mock.patch.object(server, 'ssh') as ssh:
+                with self.assertRaises(server.Failure) as raised:
+                    server.set_volume(body)
+                self.assertEqual(raised.exception.status, 400)
+                ssh.assert_not_called()
+
+    def test_supported_actions_use_wpctl_with_exact_values(self):
+        for body, commands in [({'level': 0}, ['wpctl set-volume @DEFAULT_AUDIO_SINK@ 0.00']),
+                               ({'level': 1}, ['wpctl set-volume @DEFAULT_AUDIO_SINK@ 1.00']),
+                               ({'muted': False}, ['wpctl set-mute @DEFAULT_AUDIO_SINK@ 0']),
+                               ({'level': .65, 'muted': True}, ['wpctl set-mute @DEFAULT_AUDIO_SINK@ 1',
+                                                              'wpctl set-volume @DEFAULT_AUDIO_SINK@ 0.65'])]:
+            with self.subTest(body=body), mock.patch.object(server, 'ssh', return_value='') as ssh:
+                self.assertEqual(server.set_volume(body)['message'], 'Volume updated')
+                self.assertEqual([c.args[0] for c in ssh.call_args_list], commands)
+
+    def test_device_error_propagates_without_claiming_success(self):
+        with mock.patch.object(server, 'ssh', side_effect=server.Failure('Headset offline')):
+            with self.assertRaisesRegex(server.Failure, 'Headset offline'):
+                server.set_volume({'level': .5})
+
+
+class Coverage(unittest.TestCase):
+    @unittest.skipUnless(shutil.which('node'), 'Node exercises production page JS')
+    def test_control_center_behavior(self):
+        result = subprocess.run(['node', '--test', str(ROOT / 'tests/control_center.cjs')],
+                                capture_output=True, text=True)
+        self.assertEqual(result.returncode, 0, result.stdout + result.stderr)
+
+    def test_shared_assets_ship_to_iphone_and_desktop(self):
+        spec = importlib.util.spec_from_file_location('frame_bundle_cc', ROOT / 'ios/scripts/make_frame_bundle.py')
+        bundle = importlib.util.module_from_spec(spec)
+        spec.loader.exec_module(bundle)
+        files = set(bundle.files())
+        for name in ('control-center.js', 'control-center.css', 'artwork-settings.js'):
+            self.assertIn(ROOT / 'ui' / name, files)
+        config = json.loads((ROOT / 'app/package.json').read_text())
+        ui = next(item for item in config['build']['extraResources'] if item['from'] == '../ui')
+        self.assertIn('*.js', ui['filter'])
+        self.assertIn('*.css', ui['filter'])
+
+    def test_status_exposes_kernel_thermal_trips_without_guessing_thresholds(self):
+        # Run the real aggregator with every external probe stubbed.
+        names = ('read', 'process_names', 'performance', 'os_release', 'battery', 'power_source',
+                 'disk', 'memory', 'max_temp', 'wifi', 'ip_addr', 'volume', 'port_listening', 'games', 'flatpaks')
+        with mock.patch.multiple(frame_status, **{name: mock.DEFAULT for name in names}) as probes, \
+             mock.patch.object(frame_status, 'thermal_alerts', return_value=[{'zone':'battery','tempC':45,'limitC':44}]):
+            probes['read'].return_value = '120 0'
+            probes['process_names'].return_value = set()
+            result = frame_status.status()
+        self.assertEqual(result['thermalAlerts'], [{'zone':'battery','tempC':45,'limitC':44}])
@@ -0,0 +1,127 @@
+"""The install queue (server.queue_job): Android, Quest and Meta installs run one after another."""
+import sandbox  # noqa: F401  (first: keeps tests off real data and services)
+from pathlib import Path
+import sys
+import threading
+import time
+import unittest
+from unittest.mock import patch
+
+ROOT = Path(__file__).resolve().parent.parent
+sys.path.insert(0, str(ROOT / 'ui'))
+import server  # noqa: E402
+
+
+def wait(job, timeout=5):
+    end = time.time() + timeout
+    while time.time() < end:
+        j = server.job_status(f'id={job}')
+        if j['done']:
+            return j
+        time.sleep(0.01)
+    raise AssertionError(f'job {job} never finished')
+
+
+class InstallQueue(unittest.TestCase):
+    def setUp(self):
+        self.assertEqual(server._queue, [])
+
+    def blocker(self):
+        """A queued install that runs until released."""
+        go, started = threading.Event(), threading.Event()
+
+        def work():
+            started.set()
+            go.wait(5)
+            return {'message': 'first done'}
+        job = server.queue_job('Install first', work)['job']
+        self.assertTrue(started.wait(5))
+        self.addCleanup(go.set)
+        return job, go
+
+    def test_runs_in_order_one_at_a_time(self):
+        order, running = [], []
+
+        def work(name):
+            def run(report):
+                running.append(name)
+                self.assertEqual(len(running), 1, 'two installs ran at once')
+                report('Copying', 50)
+                time.sleep(0.02)
+                order.append(name)
+                running.remove(name)
+                return {'message': f'{name} done'}
+            return run
+        first, go = self.blocker()
+        started = [server.queue_job(f'Install {n}', work(n), progress=True) for n in ('a', 'b', 'c')]
+        self.assertEqual([s['queued'] for s in started], [1, 2, 3])
+        self.assertIn('queued, 3 before it', started[2]['message'])
+        q = server.install_queue()['jobs']
+        self.assertEqual([j['label'] for j in q], ['Install first', 'Install a', 'Install b', 'Install c'])
+        self.assertEqual([j['queued'] for j in q], [False, True, True, True])
+        self.assertEqual(q[1]['stage'], 'Queued: 1 install before it')
+        self.assertEqual(q[3]['stage'], 'Queued: 3 installs before it')
+        go.set()
+        self.assertEqual(wait(first)['message'], 'first done')
+        for s, n in zip(started, 'abc'):
+            j = wait(s['job'])
+            self.assertEqual((j['message'], j['error'], j['queued']), (f'{n} done', None, False))
+        self.assertEqual(order, ['a', 'b', 'c'])
+        self.assertEqual(server.install_queue(), {'jobs': []})
+
+    def test_a_failure_does_not_stop_the_rest(self):
+        def fail():
+            raise server.Failure('no room on the Frame')
+        bad = server.queue_job('Install bad', fail)['job']
+        good = server.queue_job('Install good', lambda: {'message': 'ok'})['job']
+        self.assertEqual(wait(bad)['error'], 'no room on the Frame')
+        self.assertEqual(wait(good)['message'], 'ok')
+
+    def test_a_waiting_install_can_be_removed_but_not_a_running_one(self):
+        ran = []
+        first, go = self.blocker()
+        second = server.queue_job('Install second', lambda: ran.append(2) or {})['job']
+        third = server.queue_job('Install third', lambda: ran.append(3) or {})['job']
+        self.assertIn('Removed Install second', server.queue_action({'action': 'remove', 'job': second})['message'])
+        j = server.job_status(f'id={second}')
+        self.assertTrue(j['done'] and j['cancelled'])
+        self.assertEqual(server.job_status(f'id={third}')['stage'], 'Queued: 1 install before it')
+        for body, status in (({'action': 'remove', 'job': first}, 409), ({'action': 'remove', 'job': second}, 409),
+                             ({'action': 'nope', 'job': third}, 400)):
+            with self.assertRaises(server.Failure) as e:
+                server.queue_action(body)
+            self.assertEqual(e.exception.status, status)
+        go.set()
+        wait(third)
+        self.assertEqual(ran, [3])
+
+    def test_runs_only_on_the_headset_it_was_queued_for(self):
+        class Link:
+            device = 'frame-a'
+
+            def active_device(self):
+                return {'id': self.device}
+        link = Link()
+        with patch.object(server, 'LINK', link):
+            first, go = self.blocker()
+            ran = []
+            later = server.queue_job('Install later', lambda: ran.append(1) or {})['job']
+            link.device = 'frame-b'
+            go.set()
+            self.assertIn('switched headsets', wait(later)['error'])
+        self.assertEqual(ran, [])
+
+    def test_installs_from_each_place_are_queued(self):
+        with patch.object(server, 'ensure_master'), patch.object(server, 'queue_job', return_value={'job': 'j'}) as q:
+            server.quest({'action': 'import', 'package': 'com.example.game'})
+            server.meta({'action': 'install', 'app': '123'})
+            with patch.object(server.frame_catalog, 'app'):
+                server.android({'action': 'install', 'package': 'com.example.game'})
+            server.android({'action': 'install', 'package': 'com.example.game', 'url': 'https://f-droid.org/x.apk'})
+            with patch.object(server.apk_search, 'resolve', return_value=(None, {'enabled': True})):
+                server.source_install({'source': 'fdroid', 'id': 'com.example.game'})
+        self.assertEqual(q.call_count, 5)
+
+
+if __name__ == '__main__':
+    unittest.main()
@@ -1224,7 +1224,7 @@ class Server(unittest.TestCase):
        self.assertEqual({a['id'] for a in status['apps']}, {'111', '222'})
        self.assertIn('sharing', status)
        self.assertNotIn(TOKEN, json.dumps([result, status]))
-        with patch.object(s, 'ensure_master'), patch.object(s, 'start_job', return_value={'job': 'j'}) as job:
+        with patch.object(s, 'ensure_master'), patch.object(s, 'queue_job', return_value={'job': 'j'}) as job:
            self.assertEqual(s.meta({'action': 'install', 'app': '111', 'test': True}), {'job': 'j'})
            work = job.call_args.args[1]
            with patch.object(meta, 'install', side_effect=KeyError(f'access_token={TOKEN}')):
@@ -0,0 +1,337 @@
+"""VR mod (UEVR) checks that need no headset or network: a fake Steam library on disk.
+
+Run: python3 -m unittest discover -s tests
+"""
+import hashlib
+import io
+import itertools
+import json
+import stat
+import subprocess
+import sys
+import tempfile
+import unittest
+import zipfile
+from pathlib import Path
+from unittest import mock
+
+ROOT = Path(__file__).resolve().parent.parent
+sys.path.insert(0, str(ROOT / "ui"))
+
+import frame_mods  # noqa: E402
+import test_server  # noqa: E402  (not `from … import`, or unittest runs ServerGuards twice)
+
+APPID = 1067310
+
+
+def zip_bytes(files, links=()):
+    buf = io.BytesIO()
+    with zipfile.ZipFile(buf, "w") as z:
+        for name, data in files.items():
+            z.writestr(name, data)
+        for name in links:
+            info = zipfile.ZipInfo(name)
+            info.external_attr = (stat.S_IFLNK | 0o777) << 16
+            z.writestr(info, "/etc/passwd")
+    return buf.getvalue()
+
+
+@unittest.skipIf(sys.platform == "win32", "the helper runs on the Frame (Linux): /proc, flock and POSIX prefix paths")
+class FakeLibrary(unittest.TestCase):
+    """A Steam library with Gravitas's real layout, and pinned downloads served from memory."""
+
+    def setUp(self):
+        tmp = tempfile.TemporaryDirectory()
+        self.addCleanup(tmp.cleanup)
+        home = Path(tmp.name)
+        self.steam = home / ".local/share/Steam"
+        apps = self.steam / "steamapps"
+        (apps / "common/Gravitas/SkyArk/Binaries/Win64").mkdir(parents=True)
+        (apps / "common/Gravitas/SkyArk/Binaries/Win64/Drop-Win64-Shipping.exe").write_bytes(b"MZ" * 100)
+        (apps / "common/Gravitas/Drop.exe").write_bytes(b"MZ")
+        self.prefix = apps / f"compatdata/{APPID}/pfx"
+        for sub in ("Roaming", "Local"):
+            (self.prefix / "drive_c/users/steamuser/AppData" / sub).mkdir(parents=True)
+        (apps / f"appmanifest_{APPID}.acf").write_text(
+            f'"AppState"\n{{\n\t"appid"\t\t"{APPID}"\n\t"name"\t\t"Gravitas"\n\t"installdir"\t\t"Gravitas"\n}}\n')
+        for name, value in (("STEAM", self.steam), ("CACHE", home / ".cache/frame-control/mods"),
+                            ("RECEIPTS", home / ".local/share/frame-control/mods")):
+            p = mock.patch.object(frame_mods, name, value)
+            p.start()
+            self.addCleanup(p.stop)
+        self.running = None
+        p = mock.patch.object(frame_mods, "game_pid", side_effect=lambda exe: self.running)
+        p.start()
+        self.addCleanup(p.stop)
+        self.downloads = {frame_mods.UEVR["url"]: zip_bytes({"UEVRInjector.exe": b"MZ", "UEVRBackend.dll": b"MZ",
+                                                             "openvr_api.dll": b"MZ"})}
+        self.downloads[frame_mods.PYTHON["url"]] = zip_bytes({"python.exe": b"MZ", "python314.zip": b"PK"})
+        self.pin(self.downloads)
+
+    def pin(self, downloads):
+        """Serve these bytes and pin their real hashes in place of the published ones."""
+        for name in ("UEVR", "PYTHON"):
+            pinned = getattr(frame_mods, name)
+            p = mock.patch.object(frame_mods, name,
+                                  dict(pinned, sha256=hashlib.sha256(downloads[pinned["url"]]).hexdigest()))
+            p.start()
+            self.addCleanup(p.stop)
+        p = mock.patch.object(frame_mods.urllib.request, "urlopen",
+                              side_effect=lambda url, timeout: io.BytesIO(downloads[url]))
+        self.urlopen = p.start()
+        self.addCleanup(p.stop)
+
+    def managed(self):
+        return self.prefix / "drive_c/frame-control"
+
+
+class Status(FakeLibrary):
+    def test_unreal_game_is_eligible_and_not_installed(self):
+        st = frame_mods.status(APPID)
+        self.assertEqual((st["eligible"], st["exe"], st["installed"], st["running"], st["prefix"]),
+                         (True, "Drop-Win64-Shipping.exe", False, False, True))
+
+    def test_game_without_unreal_binary_is_refused(self):
+        (self.steam / "steamapps/common/Gravitas/SkyArk/Binaries/Win64/Drop-Win64-Shipping.exe").unlink()
+        self.assertFalse(frame_mods.status(APPID)["eligible"])
+        with self.assertRaisesRegex(frame_mods.Fail, "Unreal Engine"):
+            frame_mods.install(APPID)
+        self.urlopen.assert_not_called()
+
+    def test_uninstalled_game(self):
+        with self.assertRaisesRegex(frame_mods.Fail, "isn't installed"):
+            frame_mods.status(620)
+
+
+class InstallUninstall(FakeLibrary):
+    def test_install_then_uninstall_leaves_prefix_as_found(self):
+        before = sorted(p.relative_to(self.prefix) for p in self.prefix.rglob("*"))
+        res = frame_mods.install(APPID)
+        self.assertTrue(res["installed"])
+        self.assertTrue((self.managed() / "uevr-1.05/UEVRBackend.dll").is_file())
+        self.assertTrue((self.managed() / "python-3.14.7/python.exe").is_file())
+        self.assertIn("UEVRBackend.dll", (self.managed() / "python-3.14.7/frame_inject.py").read_text())
+        self.assertFalse(list(self.managed().glob(".staging-*")))
+        # What UEVR writes on its first injection.
+        roaming = self.prefix / "drive_c/users/steamuser/AppData/Roaming/UnrealVRMod/Drop-Win64-Shipping"
+        roaming.mkdir(parents=True)
+        (roaming / "log.txt").write_text("x")
+        (self.prefix / "drive_c/users/steamuser/AppData/Local/praydog/x").mkdir(parents=True)
+        frame_mods.uninstall(APPID)
+        after = sorted(p.relative_to(self.prefix) for p in self.prefix.rglob("*"))
+        self.assertEqual(after, before)
+        self.assertFalse(frame_mods.CACHE.exists(), "the downloads go once no game uses them")
+        self.assertIsNone(frame_mods.read_receipt(APPID))
+
+    def test_existing_uevr_settings_survive_uninstall(self):
+        profile = self.prefix / "drive_c/users/steamuser/AppData/Roaming/UnrealVRMod/Drop-Win64-Shipping"
+        profile.mkdir(parents=True)
+        (profile / "config.txt").write_text("mine")
+        frame_mods.install(APPID)
+        frame_mods.uninstall(APPID)
+        self.assertEqual((profile / "config.txt").read_text(), "mine")
+
+    def test_second_install_is_a_no_op(self):
+        frame_mods.install(APPID)
+        calls = self.urlopen.call_count
+        self.assertIn("already installed", frame_mods.install(APPID)["message"])
+        self.assertEqual(self.urlopen.call_count, calls)
+
+    def test_refuses_while_game_runs(self):
+        self.running = 4242
+        with self.assertRaisesRegex(frame_mods.Fail, "running"):
+            frame_mods.install(APPID)
+        self.running = None
+        frame_mods.install(APPID)
+        self.running = 4242
+        with self.assertRaisesRegex(frame_mods.Fail, "running"):
+            frame_mods.uninstall(APPID)
+        self.assertTrue((self.managed() / "uevr-1.05").is_dir())
+
+    def test_needs_a_prefix(self):
+        import shutil
+        shutil.rmtree(self.prefix.parent)
+        with self.assertRaisesRegex(frame_mods.Fail, "play it once"):
+            frame_mods.install(APPID)
+
+    def test_receipt_cannot_point_outside_the_prefix(self):
+        frame_mods.install(APPID)
+        r = frame_mods.read_receipt(APPID)
+        victim = self.steam / "steamapps/common/Gravitas"
+        r["remove"].append(str(self.prefix / "../../../common/Gravitas"))
+        frame_mods.receipt_path(APPID).write_text(json.dumps(r))
+        with self.assertRaisesRegex(frame_mods.Fail, "didn't create"):
+            frame_mods.uninstall(APPID)
+        self.assertTrue(victim.is_dir())
+        self.assertTrue((self.managed() / "uevr-1.05").is_dir(), "nothing removed when the receipt is bad")
+
+
+    def test_receipt_cannot_delete_other_things_in_the_prefix(self):
+        frame_mods.install(APPID)
+        r = frame_mods.read_receipt(APPID)
+        users = self.prefix / "drive_c/users"
+        r["remove"].append(str(users))
+        frame_mods.receipt_path(APPID).write_text(json.dumps(r))
+        with self.assertRaisesRegex(frame_mods.Fail, "didn't create"):
+            frame_mods.uninstall(APPID)
+        self.assertTrue(users.is_dir())
+
+    def test_failed_removal_keeps_the_receipt(self):
+        frame_mods.install(APPID)
+        with mock.patch.object(frame_mods.shutil, "rmtree"):  # e.g. a permission error, swallowed
+            with self.assertRaisesRegex(frame_mods.Fail, "couldn't remove"):
+                frame_mods.uninstall(APPID)
+        self.assertIsNotNone(frame_mods.read_receipt(APPID), "Remove can be tried again")
+        frame_mods.uninstall(APPID)
+        self.assertFalse(self.managed().exists())
+
+    def test_receipt_cannot_name_another_prefix(self):
+        frame_mods.install(APPID)
+        r = frame_mods.read_receipt(APPID)
+        r["prefix"] = "/"
+        frame_mods.receipt_path(APPID).write_text(json.dumps(r))
+        with self.assertRaisesRegex(frame_mods.Fail, "isn't app"):
+            frame_mods.uninstall(APPID)
+        self.assertTrue((self.managed() / "uevr-1.05").is_dir())
+
+
+class Downloads(FakeLibrary):
+    def test_hash_mismatch_deletes_and_installs_nothing(self):
+        self.downloads[frame_mods.UEVR["url"]] = zip_bytes({"UEVRBackend.dll": b"tampered"})
+        with self.assertRaisesRegex(frame_mods.Fail, "doesn't match"):
+            frame_mods.install(APPID)
+        self.assertFalse((frame_mods.CACHE / "UEVR.zip").exists())
+        self.assertFalse(self.managed().exists())
+        self.assertIsNone(frame_mods.read_receipt(APPID))
+
+    def test_archive_escaping_its_folder_is_refused(self):
+        for bad in (zip_bytes({"UEVRBackend.dll": b"MZ", "../../evil.dll": b"MZ"}),
+                    zip_bytes({"UEVRBackend.dll": b"MZ"}, links=["openvr_api.dll"])):
+            downloads = dict(self.downloads, **{frame_mods.UEVR["url"]: bad})
+            self.pin(downloads)
+            with self.subTest(), self.assertRaises(frame_mods.Fail):
+                frame_mods.install(APPID)
+            self.assertFalse((self.prefix / "drive_c/evil.dll").exists())
+            self.assertFalse(list(self.managed().glob("*")) if self.managed().exists() else [])
+            import shutil
+            shutil.rmtree(frame_mods.CACHE, ignore_errors=True)
+
+    def test_oversized_archive_is_refused(self):
+        with mock.patch.object(frame_mods, "MAX_UNPACKED", 3):
+            with self.assertRaisesRegex(frame_mods.Fail, "more than expected"):
+                frame_mods.install(APPID)
+
+
+    def test_oversized_download_is_stopped(self):
+        with mock.patch.object(frame_mods, "MAX_DOWNLOAD", 10):
+            with self.assertRaisesRegex(frame_mods.Fail, "bigger than expected"):
+                frame_mods.install(APPID)
+        self.assertFalse(list(frame_mods.CACHE.glob("*")))
+
+
+class Actions(FakeLibrary):
+    def test_one_change_at_a_time(self):
+        import fcntl
+        lock = Path(tempfile.mkdtemp()) / "mods.lock"
+        with mock.patch.object(frame_mods, "LOCK", lock), open(lock, "w") as held:
+            fcntl.flock(held, fcntl.LOCK_EX)
+            with self.assertRaisesRegex(frame_mods.Fail, "another mod action"):
+                frame_mods.main(["install", str(APPID)])
+            self.assertFalse(frame_mods.status(APPID)["installed"])
+            self.assertEqual(frame_mods.main(["status", str(APPID)])["appid"], APPID, "status never waits")
+
+    def test_zero_frames_is_an_answer(self):
+        stats = json.dumps([{"key": f"steam.app.{APPID}", "frame_submits": 0}, {"operation": "status"}])
+        with mock.patch.object(frame_mods.subprocess, "run", return_value=mock.Mock(stdout=stats)):
+            self.assertEqual(frame_mods.wait("frames", 5, lambda: frame_mods.frame_submits(APPID)), 0)
+        with mock.patch.object(frame_mods.subprocess, "run", return_value=mock.Mock(stdout='{"odd": 1}')):
+            self.assertIsNone(frame_mods.frame_submits(APPID))
+
+
+class Start(FakeLibrary):
+    def environ(self, text):
+        """The game's /proc/<pid>/environ; every other file reads normally."""
+        real = frame_mods.Path.read_text
+        return mock.patch.object(frame_mods.Path, "read_text", autospec=True, side_effect=lambda path, *a, **k:
+                                 text if str(path).startswith("/proc/") else real(path, *a, **k))
+
+    def test_needs_install_first(self):
+        with self.assertRaisesRegex(frame_mods.Fail, "isn't installed"):
+            frame_mods.start(APPID)
+
+    def run_start(self, reply, loaded=(False, True, True, True)):
+        frame_mods.install(APPID)
+        self.running = 4242
+        env = "WINEPREFIX=/x\0DISPLAY=:1\0WINESERVERSOCKET=17\0PATH=/p\0"
+        with self.environ(env), \
+                mock.patch.object(frame_mods, "loaded", side_effect=list(loaded) + [True] * 5), \
+                mock.patch.object(frame_mods, "x11_windows", return_value=[(1, "SkyArk", 1280)]), \
+                mock.patch.object(frame_mods.subprocess, "run", return_value=mock.Mock(stdout=reply, stderr="")) as run, \
+                mock.patch.object(frame_mods, "frame_submits", return_value=7), \
+                mock.patch.object(frame_mods.time, "sleep"):
+            return frame_mods.start(APPID), run
+
+    def test_injects_with_the_games_wine_settings(self):
+        res, run = self.run_start('noise\n{"pid": 320}\n')
+        self.assertEqual((res["frame_submits"], res["message"]), (7, "UEVR injected into Gravitas; SteamVR is receiving its frames"))
+        cmd, env = run.call_args.args[0], run.call_args.kwargs["env"]
+        self.assertEqual(cmd[:2], ["wine", "C:\\frame-control\\python-3.14.7\\python.exe"])
+        self.assertEqual(cmd[3:], ["Drop-Win64-Shipping.exe", "C:\\frame-control\\uevr-1.05",
+                                   "C:\\users\\steamuser\\AppData\\Roaming\\UnrealVRMod\\Drop-Win64-Shipping"])
+        self.assertEqual(env["WINEPREFIX"], "/x")
+        self.assertNotIn("WINESERVERSOCKET", env, "an inherited fd number means nothing to a new process")
+        self.assertIn("HOME", env, "fontconfig needs a HOME for its cache")
+
+    def test_reports_the_injection_error(self):
+        with self.assertRaisesRegex(frame_mods.Fail, "couldn't open"):
+            self.run_start('{"error": "couldn\'t open Drop-Win64-Shipping.exe (5)"}\n')
+
+    def test_success_is_checked_in_the_game(self):
+        with self.assertRaisesRegex(frame_mods.Fail, "has no UEVRBackend.dll"):
+            with mock.patch.object(frame_mods.time, "time", side_effect=itertools.count(0, 5)):
+                self.run_start('{"pid": 320}\n', loaded=[False] * 40)
+
+    def test_inject_script_is_valid_python(self):
+        compile(frame_mods.INJECT_PY, "frame_inject.py", "exec")
+
+
+class Helper(unittest.TestCase):
+    @unittest.skipIf(sys.platform == "win32", "uninstall takes the flock lock, which only exists on the Frame (Linux)")
+    def test_unexpected_errors_are_still_json(self):
+        # A receipt from another version, without "exe": a KeyError, not a traceback.
+        script = (ROOT / "ui" / "frame_mods.py").read_text().replace(
+            "def read_receipt(appid):", "def read_receipt(appid):\n    return {'prefix': '/x'}\n\n\ndef _unused(appid):")
+        out = subprocess.run([sys.executable, "-", "uninstall", "1"], input=script,
+                             capture_output=True, text=True, timeout=30, env={"HOME": tempfile.mkdtemp()})
+        self.assertEqual(out.returncode, 1, out.stderr)
+        self.assertIn("KeyError", json.loads(out.stdout)["error"])
+
+    def test_bad_usage_prints_json_error(self):
+        for args in ([], ["install"], ["install", "12x"], ["remove", "620"]):
+            out = subprocess.run([sys.executable, str(ROOT / "ui" / "frame_mods.py"), *args],
+                                 capture_output=True, text=True, timeout=30)
+            self.assertEqual(out.returncode, 1, args)
+            self.assertIn("error", json.loads(out.stdout), args)
+
+
+class ModRoutes(test_server.ServerGuards):
+    """Reuses ServerGuards' server (unresolvable SSH alias); validation runs before any SSH."""
+
+    def test_mod_input_validation(self):
+        for body in ({"action": "install", "appid": "1; reboot"}, {"action": "install", "appid": ""},
+                     {"action": "delete", "appid": "1067310"}, {"appid": "1067310"}):
+            status, payload = self.post("/api/mods", body)
+            self.assertEqual(status, 400, f"{body} -> {payload}")
+
+    def test_needs_custom_header(self):
+        self.assertEqual(self.request("POST", "/api/mods", {"action": "status", "appid": "1"})[0], 403)
+
+    def test_runs_the_mods_helper_with_its_timeout(self):
+        import server
+        with mock.patch.object(server, "steam_frame", return_value={"ok": 1}) as run:
+            self.assertEqual(server.mods({"action": "install", "appid": "1067310"}), {"ok": 1})
+        run.assert_called_once_with("install", "1067310", timeout=600, script="frame_mods.py")
+
+
+for name in [n for n in dir(test_server.ServerGuards) if n.startswith("test_")]:
+    setattr(ModRoutes, name, None)
@@ -1130,7 +1130,7 @@ class Server(unittest.TestCase):
            with self.assertRaises(s.Failure) as e:
                s.quest(body)
            self.assertEqual(e.exception.status, 400, body)
-        with patch.object(s, 'ensure_master'), patch.object(s, 'start_job', return_value={'job': 'j'}) as job:
+        with patch.object(s, 'ensure_master'), patch.object(s, 'queue_job', return_value={'job': 'j'}) as job:
            self.assertEqual(s.quest({'action': 'import', 'package': PKG, 'serial': QUEST['serial'], 'data': True}),
                             {'job': 'j'})
        self.assertTrue(job.call_args.kwargs['progress'])
@@ -79,6 +79,15 @@ class ServerGuards(unittest.TestCase):
        self.assertEqual(headers["X-Frame-Options"], "DENY")
        self.assertIn(b"<html", payload.lower())

+    def test_control_center_assets_served_with_correct_types(self):
+        for path, mime, marker in (('/control-center.js', 'text/javascript', b'createController'),
+                                   ('/control-center.css', 'text/css', b'.cc-workspace')):
+            with self.subTest(path=path):
+                status, headers, payload = self.request('GET', path)
+                self.assertEqual(status, 200)
+                self.assertIn(mime, headers['Content-Type'])
+                self.assertIn(marker, payload)
+
    def test_foreign_host_rejected(self):
        # DNS rebinding: a hostile name pointed at 127.0.0.1.
        for path in ("/", "/api/status"):
@@ -159,6 +159,42 @@ class Lifecycle(Base):
        e = self.queued()[-1]
        self.assertEqual((e["event"], e["properties"]["from_version"]), ("app_updated", "9.9.9"))

+    def test_opens_installs_and_updates_carry_the_country(self):
+        with mock.patch.dict(os.environ, {"FRAME_CONTROL_TIMEZONE": "Europe/Berlin"}):
+            tm.app_started()
+            with mock.patch.dict(os.environ, {"FRAME_CONTROL_VERSION": "10.0.0"}):
+                tm.app_started()
+        self.assertEqual([(e["event"], e["properties"].get("country")) for e in self.queued()],
+                         [("app_installed", "DE"), ("app_opened", "DE"), ("app_updated", "DE")])
+        self.assertNotIn("Europe/Berlin", tm.OUTBOX.read_text())
+
+    def test_only_zones_in_the_tz_table_give_a_country(self):
+        for tz, want in (("America/Argentina/Buenos_Aires", "AR"), ("Asia/Calcutta", "IN"), ("US/Pacific", "US"),
+                         ("Europe/Vaduz", "LI"), ("Africa/Asmera", "ER"), ("Africa/Asmara", "ER"), ("Pacific/Truk", "FM"),
+                         ("Pacific/Ponape", "FM"), ("America/Montreal", "CA"), ("America/Nassau", "BS"),
+                         ("Europe/Amsterdam", "NL"), ("Etc/GMT+10", None), ("CET", None),
+                         ("EET", None), ("WET", None), ("PST8PDT", None), ("HST", None), ("Pacific/Johnston", "UM"),
+                         ("Japan", "JP"), ("UTC", None), ("alice", None),
+                         ("home/alex/private", None), ("America/alex", None), ("../etc/passwd", None)):
+            with mock.patch.dict(os.environ, {"FRAME_CONTROL_TIMEZONE": tz}):
+                self.assertEqual(tm.country(), want, tz)
+
+    def test_country_from_tz_or_localtime_in_a_checkout(self):
+        with mock.patch.dict(os.environ, {"FRAME_CONTROL_TIMEZONE": "", "TZ": ":Asia/Tokyo"}):
+            self.assertEqual(tm.country(), "JP")
+        with mock.patch.dict(os.environ, {"FRAME_CONTROL_TIMEZONE": "", "TZ": ""}):
+            for target, want in (("/usr/share/zoneinfo/Europe/Paris", "FR"),
+                                 ("/var/db/timezone/zoneinfo/Australia/Sydney", "AU"),
+                                 ("/home/alex/zoneinfo/alex/private", None), ("/etc/mytime", None)):
+                with mock.patch.object(tm.os.path, "realpath", return_value=target):
+                    self.assertEqual(tm.country(), want, target)
+
+    def test_a_new_user_who_opens_settings_first_still_gets_the_notice(self):
+        tm.update_settings({"compat": True})
+        self.assertFalse(tm.state()["noticeShown"])
+        tm.update_settings({"noticeShown": True})
+        self.assertTrue(tm.state()["noticeShown"])
+
    def test_frame_build_once(self):
        tm.frame_seen("20260922.1", "3.8")
        tm.frame_seen("20260922.1", "3.8")
@@ -230,6 +266,39 @@ class Sending(Base):
        self.assertEqual(self.queued(), [])
        self.assertEqual([e["event"] for e in tm.state()["sent"]], ["app_opened"])

+    def test_an_older_notice_still_sends(self):
+        got = self.serve()
+        tm._save({**tm._defaults(), "notice_shown": True, "notice_version": 1})
+        tm.capture("app_opened")
+        self.assertEqual(tm.flush(), 1)
+        self.assertEqual(len(got), 1)
+
+    def test_an_older_notice_is_shown_again_and_holds_back_the_country(self):
+        got = self.serve()
+        tm.SETTINGS.write_text(json.dumps({"id": "x", "notice_shown": True, "installed_sent": True,
+                                           "last_version": "9.9.9"}))  # as 0.4.5 saved it
+        self.assertFalse(tm.state()["noticeShown"])
+        with mock.patch.dict(os.environ, {"FRAME_CONTROL_TIMEZONE": "Europe/Berlin"}):
+            tm.app_started()
+            self.assertEqual(tm.flush(), 1)  # the usual statistics still go
+            tm.update_settings({"noticeShown": True})
+            self.assertTrue(tm.state()["noticeShown"])
+            tm._save({**tm.settings(), "last_open_day": None})  # the next day
+            tm.app_started()
+            self.assertEqual(tm.flush(), 1)
+        self.assertEqual([b["batch"][0]["properties"].get("country") for _, b in got], [None, "DE"])
+
+    def test_turning_usage_on_still_waits_for_the_new_notice(self):
+        got = self.serve()
+        tm.SETTINGS.write_text(json.dumps({"id": "x", "usage": False, "notice_shown": True, "installed_sent": True,
+                                           "last_version": "9.9.9"}))  # 0.4.5, usage off
+        tm.update_settings({"usage": True})
+        self.assertFalse(tm.state()["noticeShown"])  # so the page shows it
+        with mock.patch.dict(os.environ, {"FRAME_CONTROL_TIMEZONE": "Europe/Berlin"}):
+            tm.app_started()
+        self.assertEqual(tm.flush(), 1)
+        self.assertNotIn("country", got[0][1]["batch"][0]["properties"])
+
    def test_a_failed_send_keeps_the_events(self):
        self.serve(status=500)
        tm.update_settings({"noticeShown": True})
@@ -0,0 +1,49 @@
+/* Local to the sixth tab: the existing Home, Games, Android and Tools keep
+   their layouts. The same Steam palette gives the dashboard a quieter rhythm. */
+.cc { gap:24px; }
+.cc :focus-visible { outline:2px solid var(--link); outline-offset:4px; }
+.cc-hero { display:flex; justify-content:space-between; align-items:center; gap:24px; padding:28px 30px;
+  border:1px solid #66c0f421; border-radius:12px; background:radial-gradient(ellipse at 90% 0%,#1a9fff19,transparent 65%),linear-gradient(125deg,#21364a,#152230); }
+.cc-eyebrow { font-size:11px; font-weight:700; letter-spacing:2px; text-transform:uppercase; color:var(--link); margin-bottom:7px; }
+.cc-hero h1 { font-size:clamp(25px,3vw,36px); font-weight:500; letter-spacing:-.7px; margin:0 0 8px; color:white; }
+.cc-hero p { color:#adb9c5; margin:0; max-width:580px; }
+.cc-hero > div { min-width:0; }
+.cc-hero-mark { flex:none; width:114px; height:82px; color:var(--link); opacity:.85; }
+.cc-topline { display:flex; gap:14px; align-items:center; flex-wrap:wrap; margin-bottom:14px; }
+.cc-topline h2 { font-size:17px; font-weight:500; margin:0; color:var(--bright); min-width:0; max-width:100%; overflow-wrap:anywhere; }
+.cc-topline button { margin-left:auto; border-radius:6px; }
+.cc-sample { font-size:12px; color:var(--muted); }.cc-offline { color:#cfb787; }
+.cc-summary { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:14px; }
+.cc-metric { border:1px solid #ffffff0c; border-radius:9px; padding:18px 20px; background:linear-gradient(145deg,#25374a80,#18232f); min-width:0; }
+.cc-metric > span { color:#a7b8c8; font-size:12px; }.cc-metric > strong { display:block; color:white; font-size:clamp(20px,2.2vw,30px); font-weight:500; margin:7px 0 3px; font-variant-numeric:tabular-nums; overflow-wrap:anywhere; }
+.cc-metric > small { color:var(--muted); display:block; font-size:11.5px; }
+.cc-device-facts { margin:14px 0 0; padding:16px 20px; border:1px solid #ffffff0a; border-radius:9px; background:#10192366; }
+.cc-device-facts summary { cursor:pointer; color:#b8cbd9; font-size:12px; }.cc-device-facts dl { margin:18px 0 0; }
+.cc-readings { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:12px 18px; padding:0; }
+.cc-readings div { min-width:0; }.cc-readings dt { color:var(--muted); font-size:11px; }.cc-readings dd { margin:3px 0 0; color:#d9e7f2; font-size:13px; font-variant-numeric:tabular-nums; overflow-wrap:anywhere; }
+.cc-device-facts .cc-readings { grid-template-columns:repeat(4,minmax(0,1fr)); }
+.cc-services { display:flex; flex-wrap:wrap; gap:12px 22px; border-top:1px solid #ffffff0b; margin-top:18px; padding-top:14px; }
+.cc-services > span { display:flex; gap:7px; align-items:center; font-size:11px; color:#b3c5d4; }.cc-services b { color:var(--muted); font-weight:400; }
+.cc-workspace { display:grid; grid-template-columns:220px minmax(0,1fr); gap:26px; align-items:start; }
+.cc-workspace > * { min-width:0; width:100%; max-width:100%; }
+.cc-sidebar { position:sticky; top:90px; }.cc-sidebar > p { margin:0 0 12px 12px; color:var(--muted); font-size:10px; text-transform:uppercase; letter-spacing:1.5px; }
+.cc-categories { display:flex; flex-direction:column; gap:5px; min-width:0; max-width:100%; }.cc-categories button { display:flex; align-items:center; text-align:left; gap:10px; border-radius:7px; background:transparent; min-height:43px; padding:10px 12px; color:#a8b8c8; font-size:12px; }
+.cc-categories svg { width:17px; height:17px; flex:none; }.cc-category-count { margin-left:auto; font-size:11px; opacity:.65; }
+.cc-categories button:hover { background:#66c0f40a; color:white; }.cc-categories button[aria-pressed=true] { background:#1a9fff1a; color:var(--link); box-shadow:inset 2px 0 var(--blue); }
+.cc-status { margin-top:24px; padding:18px 14px; border-top:1px solid #ffffff10; }.cc-status > div { display:flex; align-items:center; gap:8px; font-size:12px; color:#c4d2dc; }.cc-status p { margin:10px 0 0; color:var(--muted); font-size:11.5px; line-height:1.6; }
+.cc-search-row { display:flex; align-items:center; gap:14px; margin-bottom:18px; }.cc-search { display:flex; align-items:center; gap:10px; border:1px solid #66c0f426; border-radius:8px; padding:0 12px; background:#0e1824; flex:1; min-width:0; }
+.cc-search:focus-within { border-color:var(--blue); }.cc-search svg { width:18px; color:var(--muted); flex:none; }.cc-search input { width:100%; min-width:0; padding:13px 0; border:0; background:transparent; font-size:13px; }.cc-search input:focus { outline:none; }.cc-search button { padding:3px 7px; background:transparent; color:var(--muted); font-size:18px; }.cc-results { color:var(--muted); font-size:11px; white-space:nowrap; }
+.cc-cards { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:16px; }.cc-card { display:flex; flex-direction:column; min-width:0; padding:22px; background:linear-gradient(150deg,#202e3d,#17212c); border:1px solid #ffffff0e; border-radius:10px; }
+.cc-card-head { display:flex; gap:10px; align-items:center; justify-content:space-between; margin-bottom:16px; }.cc-icon { width:34px; height:34px; display:grid; place-items:center; background:#66c0f40c; border-radius:8px; color:#85bfe2; }.cc-icon svg { width:20px; height:20px; }
+.cc-kind { font-size:10px; padding:3px 7px; border-radius:4px; color:#a2b3c2; background:#ffffff06; letter-spacing:.2px; }.cc-kind-control { color:#92cdeb; background:#1a9fff12; }.cc-kind-headset { color:#d3c095; background:#d9a23a0b; }.cc-kind-read { color:#9fceb9; background:#59bf4009; }
+.cc-card h2 { font-size:17px; font-weight:500; color:white; margin:0 0 8px; }.cc-card > p { font-size:12.5px; color:#a4b4c3; line-height:1.65; margin:0 0 14px; }
+.cc-guidance { padding:11px 12px; border-left:2px solid #9e876544; border-radius:0 4px 4px 0; background:#ffffff03; color:#bcb7aa; font-size:11.5px; line-height:1.6; margin-bottom:14px; }
+.cc-links { display:flex; flex-wrap:wrap; gap:10px 18px; margin-top:auto; padding-top:8px; }.cc-links a { display:inline-flex; gap:8px; align-items:center; color:var(--link); font-size:12px; text-decoration:none; }.cc-links a:hover { color:white; text-decoration:underline; }.cc-links a span { font-size:14px; opacity:.65; }
+.cc-note { font-size:11px; line-height:1.6; color:var(--muted); }.cc-card p.cc-note { margin:10px 0 0; }.cc-audio label { display:flex; justify-content:space-between; font-size:12px; color:#b7c8d6; }.cc-audio output { color:var(--link); font-variant-numeric:tabular-nums; }.cc-audio input { width:100%; margin:15px 0; }.cc-audio-actions { display:flex; gap:8px; flex-wrap:wrap; align-items:center; }.cc-audio-actions button { border-radius:5px; }.cc-audio-actions span { flex-basis:100%; margin-top:4px; }.cc-audio input:disabled { opacity:.35; }
+.cc-empty { padding:40px 24px; border:1px dashed #66c0f433; border-radius:10px; text-align:center; color:var(--muted); }.cc-empty h2 { color:white; font-size:18px; font-weight:500; }.cc-empty button { margin-top:12px; border-radius:5px; }
+@media (min-width:641px) and (max-width:1250px) { .brand b { display:none; } header { gap:14px; } nav a { padding:0 9px; font-size:13px; } .pill { min-width:120px; } }
+@media (min-width:641px) and (max-width:900px) { html { scroll-padding-top:116px; } header { flex-wrap:wrap; height:auto; min-height:64px; padding-top:8px; padding-bottom:8px; gap:6px 12px; } nav { order:3; width:100%; height:36px; } nav a { flex:1; justify-content:center; padding:0 6px; } .hdr-end { flex:1; justify-content:flex-end; } .cc-sidebar { top:115px; } }
+@media (max-width:1100px) { .cc-workspace { grid-template-columns:185px minmax(0,1fr); gap:18px; }.cc-card { padding:18px; }.cc-device-facts .cc-readings { grid-template-columns:repeat(3,minmax(0,1fr)); } }
+@media (max-width:900px) { .cc-workspace { grid-template-columns:minmax(0,1fr); }.cc-sidebar { position:static; }.cc-sidebar > p,.cc-status { display:none; }.cc-categories { flex-direction:row; overflow-x:auto; padding-bottom:6px; }.cc-categories button { flex:none; white-space:nowrap; }.cc-category-count { margin-left:2px; }.cc-categories button[aria-pressed=true] { box-shadow:inset 0 -2px var(--blue); }.cc-summary { gap:10px; }.cc-metric { padding:15px; } }
+@media (max-width:640px) { .cc { gap:20px; }.cc-hero { padding:22px 20px; }.cc-hero p { font-size:12px; }.cc-hero-mark { width:72px; height:55px; }.cc-summary { grid-template-columns:repeat(2,minmax(0,1fr)); }.cc-metric > strong { font-size:24px; }.cc-topline { gap:8px; }.cc-sample { order:3; width:100%; }.cc-device-facts { padding:14px; }.cc-device-facts .cc-readings { grid-template-columns:repeat(2,minmax(0,1fr)); }.cc-cards { grid-template-columns:minmax(0,1fr); gap:12px; }.cc-search-row { gap:8px; }.cc-results { font-size:10px; }.cc-card { padding:20px; }.cc-card h2 { font-size:18px; } }
+@media (max-width:640px), (max-height:500px) and (hover:none) { .cc-links a { min-height:44px; }.cc-audio-actions button,.cc-topline button { min-height:44px; }.cc-search button { min-width:36px; min-height:44px; } }
@@ -0,0 +1,318 @@
+/* The Control Center uses the shared page's guarded api() and status poll.
+ * Browsing never starts a stream, installs a helper or changes the headset. */
+(function (root, factory) {
+  if (typeof module === 'object' && module.exports) module.exports = factory();
+  else root.FrameControlCenter = factory();
+})(typeof window === 'object' ? window : globalThis, function () {
+  'use strict';
+  const categories = [
+    ['all', 'Everything', 'grid'], ['device', 'Device & audio', 'device'],
+    ['vr', 'VR & comfort', 'eye'], ['apps', 'Apps & files', 'apps'],
+    ['network', 'Connection & remote', 'network'], ['companion', 'Frame Control', 'settings'],
+  ];
+  // Each destination is an existing workflow, with its own guards and confirmations.
+  const catalog = [
+    {id:'audio', category:'device', icon:'audio', title:'Audio', kind:'control', label:'Available here',
+      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']]},
+    {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'],['#apps','Linux apps'],['#power','SFTP & remote tools']]},
+    {id:'microphone', category:'device', icon:'audio', title:'Microphone & audio routing', kind:'headset', label:'In the headset',
+      description:'Frame Control controls the default output volume only. Microphone mute, input gain, output selection, balance and per-app mixers have no verified API here.',
+      keywords:'mic input microphone audio sink output device gain mute eq equalizer spatial audio balance headphones',
+      guidance:'Check the headset’s audio controls or the app’s own audio settings for these adjustments.'},
+    {id:'power', category:'device', icon:'power', title:'Power & sleep', kind:'flow', label:'Existing controls',
+      description:'Sleep, restart or shut down with confirmation and your Developer Mode password. A sleeping Frame must be woken on the device.',
+      keywords:'battery suspend reboot off awake idle timeout keep awake inhibitor', links:[['#power','Power controls']],
+      guidance:'Set automatic sleep in the headset: Steam Settings → Power → Sleep after inactivity. Keep-awake is available through the existing script/MCP tools; there is no switch here.'},
+    {id:'system', category:'device', icon:'device', title:'SteamOS & hardware', kind:'headset', label:'In the headset',
+      description:'Check your current OS build above. Manage system updates, Developer Mode and hardware settings in Steam Settings on the Frame.',
+      keywords:'firmware update beta stable channel developer password bluetooth controller battery pairing calibration brightness refresh rate display IPD lenses passthrough camera eye hand tracking foveation recovery factory reset',
+      guidance:'Brightness, refresh rate, optics, controllers, Bluetooth and passthrough have no verified remote controls here. Check the headset’s own controls. Recovery and factory reset are manual procedures.'},
+    {id:'performance', category:'vr', icon:'pulse', title:'Performance monitor', kind:'read', label:'Read-only metrics',
+      description:'CPU, GPU clock, app and compositor timings come from the Frame. Unavailable timings stay empty, including when SteamVR is in standby.',
+      keywords:'fps frame rate gpu cpu heat temperature thermal sensor render memory', special:'performance', links:[['#vrTools','HUD & performance tools']]},
+    {id:'view', category:'vr', icon:'eye', title:'Headset view & casting', kind:'flow', label:'Existing controls',
+      description:'Capture the lenses or desktop, stream live video, and control a focused panel. Casting can reveal private content.',
+      keywords:'screenshot camera video capture live stream desktop mirror control eye', links:[['#view','Open headset view'],['#shots','Screenshots']]},
+    {id:'comfort', category:'vr', icon:'clock', title:'Family & comfort', kind:'flow', label:'Existing controls',
+      description:'Set a session limit, breaks and check-ins, with battery and heat alerts. Headset reminders continue if your companion disconnects.',
+      keywords:'parent child timer minutes notifications health break low battery', links:[['#comfort','Configure a session']],
+      guidance:'A reminder, not a parental lock. Save and pause before the session returns to Steam Home.'},
+    {id:'playspace', category:'vr', icon:'space', title:'Playspace & movement', kind:'headset', label:'In the headset',
+      description:'Use SteamVR’s recenter and room setup. Choose seated play, snap-turn, teleport and vignettes in each game’s own settings.',
+      keywords:'boundary guardian tracking origin floor standing seated motion sickness locomotion turn recenter room',
+      guidance:'No verified universal locomotion switch or remote tracking-origin control is available.'},
+    {id:'panels', category:'vr', icon:'grid', title:'Panels & workspace', kind:'flow', label:'Existing controls',
+      description:'Find an open panel and bring it forward, or open the panel switcher in the headset. Move, size and dock panels with SteamVR’s dashboard.',
+      keywords:'overlay window layout float world curvature docking theatre multitasking', links:[['#panels','Open panel switcher']],
+      guidance:'Saved spatial layouts are not available. Panel placement stays in SteamVR.'},
+    {id:'steam', category:'apps', icon:'game', title:'Steam library', kind:'flow', label:'Existing controls',
+      description:'Browse owned games and Frame ratings, install with progress, or launch an installed game. Purchases and license prompts use Steam.',
+      keywords:'games download install store owned compatibility rating verified proton', links:[['#library','Installed games'],['#getgames','Library & store']]},
+    {id:'android', category:'apps', icon:'apps', title:'Android apps', kind:'flow', label:'Existing controls',
+      description:'Discover apps, manage Lepton instances, and launch, stop, test or remove installed apps. View compatibility reports before installing.',
+      keywords:'apk fdroid lepton application sideload sources repository reports', links:[['#appStore','Discover apps'],['#androidLibrary','Manage installed apps']]},
+    {id:'sources', category:'apps', icon:'shield', title:'App sources & compatibility', kind:'flow', label:'Existing controls',
+      description:'Choose catalogue sources or add a signed F-Droid repository from Sources. Review install availability and compatibility reports for the exact app.',
+      keywords:'fdroid f-droid repository source fingerprint trust signature compatibility report apk sidequest data backup restore', links:[['#appStore','Catalogue & sources'],['#androidLibrary','Apps & reports']],
+      guidance:'Android data backup and restore are script-only. This interface does not provide an app-data recovery workflow.'},
+    {id:'display', category:'apps', icon:'display', title:'Android display & text', kind:'flow', label:'Existing controls',
+      description:'Choose a running Android instance, then set resolution, UI density and text size, or reset to its defaults.',
+      keywords:'dpi scaling font scale sharp native 1920 1080 2560 1440 resolution screen text accessibility', links:[['#display','Configure app display']],
+      guidance:'Applies to that Lepton instance, not the headset’s lenses. Persistence after relaunch is unverified.'},
+    {id:'sideload', category:'apps', icon:'game', title:'Sideloaded games', kind:'flow', label:'Existing controls',
+      description:'Send a game folder, ZIP or executable. Frame Control selects Proton or the Linux runtime and adds a Steam library entry.',
+      keywords:'windows exe zip linux devkit runtime shortcuts launch remove', links:[['#sideloaded','Manage titles'],['#transfer','Send a game']]},
+    {id:'files', category:'apps', icon:'files', title:'Files & clipboard', kind:'flow', label:'Existing controls',
+      description:'Send files to ~/Downloads, or send text to the Frame’s clipboard. Clipboard transfer needs the desktop panel open.',
+      keywords:'upload transfer downloads paste copy text sftp storage', links:[['#transfer','Send files & text']]},
+    {id:'media', category:'apps', icon:'play', title:'Video & stereo photos', kind:'flow', label:'Preview feature',
+      description:'Send and play H.264/H.265 video, SBS/OU photos or small splats with the built-in player. Choose a layout and theatre surround.',
+      keywords:'movie photo sbs ou 3d splat gaussian theatre media player', links:[['#media','Open media player']],
+      guidance:'Seeking, subtitles, native HEIC/MPO and large splat scenes are not supported yet.'},
+    {id:'flatpak', category:'apps', icon:'apps', title:'Linux desktop apps', kind:'flow', label:'Existing controls',
+      description:'Install user Flatpaks by Flathub ID, choose quick picks like VLC and Moonlight, and manage installed apps.',
+      keywords:'flatpak firefox vlc remmina moonlight flathub install remove', links:[['#apps','Manage Linux apps']]},
+    {id:'connection', category:'network', icon:'network', title:'Headsets & addresses', kind:'flow', label:'Existing controls',
+      description:'Manage headsets, LAN, USB-C, mDNS and Tailscale addresses. Inspect connection attempts and choose the device you want to control.',
+      keywords:'wifi wi-fi network ip ssh pairing keys discovery alias tailscale usb offline reconnect', links:[['#devices','Manage headsets','desktop'],['#connection','Connection details']],
+      guidance:'Join Wi-Fi networks on the headset. Frame Control manages connection addresses; it does not change Wi-Fi credentials.'},
+    {id:'remote', category:'network', icon:'display', title:'Remote access', kind:'flow', label:'Existing controls',
+      description:'Open SSH, SFTP, Steam Link or remote desktop using the host’s existing tools. Developer Mode enables headset SSH and xrdp.',
+      keywords:'terminal shell remote desktop rdp xrdp streaming steam link sftp', links:[['#power','Open remote tools']]},
+    {id:'input', category:'network', icon:'keyboard', title:'Keyboard & trackpad', kind:'flow', label:'Existing controls',
+      description:'Type and point in the Frame’s apps with KDE Connect, or use Control on the live panel view. First use sets up the input helper.',
+      keywords:'mouse pointer keyboard trackpad touch click kde input', links:[['#pad','Open keyboard & trackpad'],['#view','Panel control']]},
+    {id:'mac', category:'network', icon:'display', title:'Mac in the headset', kind:'flow', label:'macOS only', platform:'mac',
+      description:'Stream Mac screens or individual windows into headset panels. Choose quality and give each window its own display.',
+      keywords:'macos mac window screen sharing stream quality sharp balanced light permissions', links:[['#macview','Configure Mac streaming']],
+      guidance:'Requires Frame Control running on a Mac. It is unavailable when the server runs on Windows, Linux or the headset.'},
+    {id:'privacy', category:'companion', icon:'shield', title:'Privacy & sharing', kind:'flow', label:'Companion settings',
+      description:'Choose anonymous usage statistics, compatibility sharing and error details separately. Inspect what was sent and manage your optional contact email.',
+      keywords:'telemetry analytics diagnostics consent data tracking email contact opt out', links:[['#privacy','Privacy settings']]},
+    {id:'artwork', category:'companion', icon:'image', title:'Library artwork', kind:'flow', label:'Companion settings',
+      description:'Configure an optional SteamGridDB key or refresh artwork. Without a key, source images and generated art remain available.',
+      keywords:'cover image steamgriddb api key library art refresh', links:[['#artworkSettings','Artwork settings']]},
+    {id:'assistant', category:'companion', icon:'spark', title:'Assistant & agents', kind:'flow', label:'Opt-in tools',
+      description:'Use your own model endpoint and review proposed actions. Nothing goes to a model until you opt in; protected actions need approval.',
+      keywords:'ai mcp model endpoint agent approvals chat assistant', links:[['/assistant','Open assistant']]},
+    {id:'support', category:'companion', icon:'help', title:'Updates & diagnostics', kind:'flow', label:'Companion settings',
+      description:'Check Frame Control updates in the desktop app or prepare a private problem report. Review the diagnostic preview before sending.',
+      keywords:'app version bug feedback support update log error report licenses', links:[['#privacy','Updates & problem reports']]},
+  ];
+  const paths = {
+    grid:'M3 3h7v7H3z M14 3h7v7h-7z M3 14h7v7H3z M14 14h7v7h-7z',
+    device:'M3 7h18v10H3z M8 11v2 M16 11v2', eye:'M2 12s4-7 10-7 10 7 10 7-4 7-10 7S2 12 2 12z M15 12a3 3 0 1 1-6 0 3 3 0 0 1 6 0',
+    apps:'M4 4h6v6H4z M14 4h6v6h-6z M4 14h6v6H4z M17 14v6 M14 17h6',
+    network:'M2 8a16 16 0 0 1 20 0 M5 12a11 11 0 0 1 14 0 M8 16a6 6 0 0 1 8 0 M12 20h.01',
+    settings:'M4 6h16 M4 12h16 M4 18h16 M8 3v6 M16 9v6 M10 15v6',
+    audio:'M3 9h4l5-4v14l-5-4H3z M16 8a6 6 0 0 1 0 8 M19 5a10 10 0 0 1 0 14',
+    power:'M12 2v10 M6 5a9 9 0 1 0 12 0', pulse:'M2 12h5l3-8 4 16 3-8h5',
+    clock:'M21 12a9 9 0 1 1-18 0 9 9 0 0 1 18 0 M12 7v5l3 2',
+    space:'M3 8l9-5 9 5v8l-9 5-9-5z M3 8l9 5 9-5 M12 13v8',
+    game:'M6 8h12l3 9-3 2-4-4h-4l-4 4-3-2z M7 10v4 M5 12h4 M16 11h.01 M18 13h.01',
+    display:'M3 4h18v13H3z M8 21h8 M12 17v4', files:'M3 5h7l2 3h9v12H3z',
+    play:'M8 4l12 8-12 8z', keyboard:'M2 6h20v12H2z M6 10h.01 M10 10h.01 M14 10h.01 M18 10h.01 M6 14h12',
+    shield:'M12 2l8 4v6c0 5-8 10-8 10S4 17 4 12V6z M8 12l3 3 5-6',
+    image:'M3 3h18v18H3z M3 17l6-6 5 5 3-3 4 4 M16 7h.01',
+    spark:'M12 2l3 7 7 3-7 3-3 7-3-7-7-3 7-3z',
+    help:'M21 12a9 9 0 1 1-18 0 9 9 0 0 1 18 0 M9 8a3 3 0 0 1 6 1c0 2-3 2-3 5 M12 17h.01',
+  };
+  const icon = name => `<svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="${paths[name] || paths.settings}"/></svg>`;
+  function matches(item, query, category) {
+    const text = [item.title, item.description, item.keywords, item.guidance, item.label,
+      categories.find(([id])=>id === item.category)?.[1]].join(' ').toLowerCase();
+    return (category === 'all' || item.category === category) && query.toLowerCase().trim().split(/\s+/).every(word => text.includes(word));
+  }
+  const number = (value, suffix = '', digits = 0) => Number.isFinite(value) ? value.toLocaleString(undefined, {maximumFractionDigits:digits}) + suffix : 'Unavailable';
+  const gib = value => Number.isFinite(value) ? number(value / 1073741824, ' GiB', 1) : 'Unavailable';
+  const duration = seconds => Number.isFinite(seconds) && seconds >= 0 ? seconds < 3600 ? `${Math.floor(seconds / 60)} min` : `${Math.floor(seconds / 3600)} h ${Math.floor(seconds % 3600 / 60)} min` : 'Unavailable';
+  function metrics(sample) {
+    const s = sample || {}, b = s.battery || {}, p = s.performance || {}, h = s.disk?.home, m = s.memory;
+    const capacity = b.percent;
+    const idle = !!s.power && Number.isFinite(b.watts) && Math.abs(b.watts) < .5;
+    const charging = b.status === 'Charging';
+    const full = b.status === 'Full' || (!!s.power && capacity >= 100);
+    const batteryState = !sample ? 'Connect to read charge and power' : !s.battery ? 'Battery sensor unavailable' :
+      full ? 'Fully charged' : charging ? 'Charging' : idle ? 'Plugged in · not charging' : s.power ? 'Plugged in · on battery' : 'On battery';
+    return {
+      battery:number(capacity, '%'), batteryDetail:batteryState,
+      storage:h ? gib(h.free) : 'Unavailable', storageDetail:h ? `${gib(h.total)} total · user storage` : 'User storage unavailable',
+      memory:m && Number.isFinite(m.total) && Number.isFinite(m.available) ? gib(m.total - m.available) : 'Unavailable',
+      memoryDetail:m ? `${gib(m.total)} total · system memory used` : 'Memory sensor unavailable',
+      rootFree:gib(s.disk?.root?.free), rootTotal:gib(s.disk?.root?.total), memoryAvailable:gib(m?.available),
+      fps:number(p.compositorFps, '', 1), fpsDetail:'Compositor FPS · not game FPS',
+      power:number(b.watts, ' W', 1), charger:s.power ? `${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 ? `${duration(b.timeToEmpty)} remaining` : 'Unavailable',
+      wifi:s.wifi?.ssid || 'Unavailable', signal:number(s.wifi?.signal, '%'), ip:s.ip || 'Unavailable',
+      uptime:duration(s.uptime), os:s.os?.version || 'Unavailable', build:s.os?.build || 'Unavailable',
+      temperature:number(s.temp, ' °C', 1), cpu:number(p.cpuPercent, '%', 1), gpu:number(p.gpuMHz, ' MHz', 1),
+      appFps:number(p.appFps, '', 1), frame:number(p.frameMs, ' ms', 2), render:number(p.gpuMs, ' ms', 2), compositorCpu:number(p.compositorCpuMs, ' ms', 2),
+      thermal:!Array.isArray(s.thermalAlerts) ? 'Trip data unavailable' : s.thermalAlerts.length ? s.thermalAlerts.map(a => `${a.zone || 'Sensor'} ${number(a.tempC, ' °C')} ≥ ${number(a.limitC, ' °C')}`).join('; ') : 'No hot / critical trip reported',
+    };
+  }
+  // Strict validation and captured device identity apply even if a stale enabled
+  // button is clicked during a disconnect, headset switch, or pending request.
+  function createController({api, getContext}) {
+    let busy = false;
+    return {
+      get busy() { return busy; },
+      async audio(change) {
+        if (busy) throw new Error('An audio change is still in progress.');
+        const context = getContext();
+        if (context.online !== true || !context.fresh || !context.sample?.volume) throw new Error('Connect and refresh the Frame before changing audio.');
+        const keys = Object.keys(change);
+        if (!keys.length || keys.some(k => !['level','muted'].includes(k)) ||
+            ('level' in change && (typeof change.level !== 'number' || !Number.isFinite(change.level) || change.level < 0 || change.level > 1)) ||
+            ('muted' in change && typeof change.muted !== 'boolean')) throw new Error('Use a volume from 0 to 100% and a valid mute state.');
+        busy = true;
+        try {
+          const result = await api('/api/volume', change, context.device);
+          if (getContext().generation !== context.generation) return null;
+          return result;
+        } finally { busy = false; }
+      },
+    };
+  }
+  function mount({document, api, refresh, refreshAudio = refresh, getContext, openConnection, platform}) {
+    const get = id => document.getElementById(id), page = get('controlCenter');
+    let category = 'all', sample = null, receivedAt = null, available = false, error = '', dirty = false, sampleGeneration = null, audioPending = false;
+    const metric = (id, label) => `<div><dt>${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">${[['battery','Charge'],['power','Battery power · signed'],['charger','Charger'],['estimate','Battery estimate'],['batteryTemp','Battery temperature'],['batteryHealth','Battery health']].map(([id,label])=>metric(id,label)).join('')}</dl>`;
+    const storage = `<dl class="cc-readings">${[['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('');
+    const specials = {audio, performance:perf, health, storage};
+    get('ccCards').innerHTML = catalog.map(item=>`<section class="cc-card" data-cc-card="${item.id}"><div class="cc-card-head"><span class="cc-icon">${icon(item.icon)}</span><span class="cc-kind cc-kind-${item.kind}">${item.label}</span></div><h2>${item.title}</h2><p>${item.description}</p>${specials[item.special] || ''}${item.guidance ? `<div class="cc-guidance">${item.guidance}</div>` : ''}${item.links ? `<div class="cc-links">${item.links.map(([href,label,desktop])=>`<a href="${href}"${desktop ? ' class="desk-only"' : ''}${item.platform === 'mac' ? ' data-cc-mac-link' : ''}>${label}<span aria-hidden="true">↗</span></a>`).join('')}</div>` : ''}</section>`).join('');
+    // Host-only features stay searchable with a reason; only their unsupported
+    // action disappears. The host API, rather than viewport/UA, decides availability.
+    let macSupported = platform === 'darwin';
+    const visibleCatalog = catalog;
+    function filter() {
+      const query = get('ccSearch').value;
+      let count = 0;
+      catalog.forEach(item => {
+        const visible = visibleCatalog.includes(item) && matches(item, query, category);
+        page.querySelector(`[data-cc-card="${item.id}"]`).hidden = !visible;
+        if (visible) count++;
+      });
+      get('ccResultCount').textContent = `${count} ${count === 1 ? 'section' : 'sections'}`;
+      get('ccEmpty').hidden = count > 0;
+      get('ccClear').hidden = !query;
+      page.querySelectorAll('[data-cc-category]').forEach(button => {
+        button.setAttribute('aria-pressed', String(button.dataset.ccCategory === category));
+        button.querySelector('.cc-category-count').textContent = visibleCatalog.filter(item=>matches(item, query, button.dataset.ccCategory)).length;
+      });
+      page.querySelectorAll('[data-cc-mac-link]').forEach(link=>{link.hidden = !macSupported;});
+    }
+    get('ccSearch').addEventListener('input', filter);
+    function resetFilter() { get('ccSearch').value = ''; category = 'all'; filter(); get('ccSearch').focus(); }
+    get('ccClear').onclick = () => { get('ccSearch').value = ''; filter(); get('ccSearch').focus(); };
+    get('ccResetFilter').onclick = resetFilter;
+    get('ccCategories').onclick = event => {
+      const button = event.target.closest('[data-cc-category]');
+      if (!button) return;
+      category = button.dataset.ccCategory; filter();
+    };
+    page.querySelector('[href="#connection"]').onclick = event => { event.preventDefault(); openConnection(); };
+    // The headset clock can differ from this client's. Age uses the client
+    // receipt time, retained by the shared poll when it buffers an early sample.
+    const isFresh = () => available && Number.isFinite(receivedAt) && Date.now() >= receivedAt && Date.now() - receivedAt <= 90000;
+    const context = () => ({...getContext(), sample, fresh:isFresh() && sampleGeneration === getContext().generation});
+    const controller = createController({api, getContext:context});
+    function audioAvailability() {
+      const enabled = context().online === true && context().fresh && !!sample?.volume && !controller.busy && !audioPending;
+      ['ccVolume','ccApplyVolume','ccMute'].forEach(id=>{get(id).disabled = !enabled;});
+    }
+    function renderSample() {
+      const values = metrics(isFresh() ? sample : null);
+      page.querySelectorAll('[data-cc-metric]').forEach(el=>{el.textContent = values[el.dataset.ccMetric];});
+      get('ccDeviceName').textContent = isFresh() ? sample.hostname || 'Steam Frame' : 'Steam Frame';
+      const sampledAt = Number.isFinite(sample?.time) && sample.time > 0 && sample.time * 1000 <= 8640000000000000 ? new Date(sample.time * 1000) : null;
+      get('ccSampleState').textContent = isFresh() ? `${sampledAt ? 'Sampled ' + sampledAt.toLocaleTimeString() : 'Received ' + new Date(receivedAt).toLocaleTimeString()} · updates every 30 seconds` :
+        error || (receivedAt !== null ? 'Sample expired · refresh to read current metrics' : 'Connect your Frame to read live metrics');
+      get('ccSampleState').classList.toggle('cc-offline', !isFresh());
+      get('ccStatusLabel').textContent = isFresh() ? 'Connected' : 'No live sample';
+      get('ccStatusDot').classList.toggle('on', isFresh());
+      get('ccStatusNote').textContent = isFresh() ? 'Read-only status over SSH. Browse freely; controls run only when you use them.' :
+        'Settings guides and companion tools remain available. Wake the Frame on the device, then reconnect.';
+      get('ccBuild').textContent = isFresh() ? `SteamOS ${values.os} · build ${values.build}` : 'System information unavailable';
+      const services = isFresh() ? sample.services || {} : {};
+      get('ccServices').innerHTML = [['steamvr','SteamVR'],['desktop','Desktop'],['lepton','Lepton · port 5555'],['rdp','RDP process']].map(([key,label])=>`<span><i class="dot ${services[key] === true ? 'on' : ''}"></i>${label}<b>${typeof services[key] === 'boolean' ? services[key] ? 'Running' : 'Not detected' : 'Unavailable'}</b></span>`).join('');
+      if (sample?.volume && isFresh()) {
+        const pct = Math.round(sample.volume.level * 100);
+        if (!dirty && !controller.busy && !audioPending) get('ccVolume').value = Math.min(100,Math.max(0,pct));
+        get('ccVolumeValue').textContent = `${get('ccVolume').value}%`;
+        get('ccAudioReadback').textContent = `Reported ${pct}% · ${sample.volume.muted ? 'muted' : 'unmuted'}`;
+        get('ccMute').textContent = sample.volume.muted ? 'Unmute' : 'Mute';
+      } else {
+        get('ccAudioReadback').textContent = isFresh() ? 'Audio reading unavailable' : 'Waiting for an audio reading';
+        get('ccVolumeValue').textContent = '—';
+      }
+      audioAvailability();
+    }
+    async function changeAudio(change) {
+      if (audioPending) return;
+      const generation = getContext().generation;
+      audioPending = true;
+      get('ccAudioResult').textContent = 'Applying…';
+      try {
+        const pending = controller.audio(change);
+        audioAvailability();
+        const result = await pending;
+        if (!result || generation !== getContext().generation) return;
+        if ('level' in change) dirty = false;
+        get('ccAudioResult').textContent = `${result.message || 'Audio updated'}. Refreshing the reading…`;
+        await refreshAudio();
+        if (generation !== getContext().generation) return;
+        if (!isFresh() || !sample?.volume) {
+          get('ccAudioResult').textContent = 'Audio command sent; current output could not be confirmed. Reconnect and refresh.';
+        } else {
+          const reported = sample.volume;
+          const matched = (!('level' in change) || Math.round(reported.level * 100) === Math.round(change.level * 100)) &&
+            (!('muted' in change) || reported.muted === change.muted);
+          get('ccAudioResult').textContent = `${matched ? 'Confirmed' : 'Command sent · reported output differs'}: ${Math.round(reported.level * 100)}%, ${reported.muted ? 'muted' : 'unmuted'}.${matched ? '' : ' Refresh to check again.'}`;
+        }
+      } catch (e) {
+        if (generation !== getContext().generation) return;
+        get('ccAudioResult').textContent = `Couldn’t apply audio: ${e.message}`;
+      } finally { audioPending = false; renderSample(); }
+    }
+    get('ccVolume').oninput = () => { dirty = true; get('ccVolumeValue').textContent = `${get('ccVolume').value}%`; };
+    get('ccApplyVolume').onclick = () => changeAudio({level:Number(get('ccVolume').value) / 100});
+    get('ccMute').onclick = () => changeAudio({muted:!sample?.volume?.muted});
+    get('ccRefresh').onclick = async () => {
+      get('ccRefresh').disabled = true;
+      try { await refresh(); } finally { get('ccRefresh').disabled = false; }
+    };
+    filter(); renderSample();
+    // Expire UI readings even when the shared poll is paused in a hidden tab.
+    const timer = setInterval(()=>{if (receivedAt !== null && available && !isFresh()) { available = false; renderSample(); }}, 5000);
+    return {
+      host(value) { macSupported = !value.mobile && value.os === 'macOS'; filter(); },
+      status(value, receipt = Date.now(), read = {valid: true, error: null}) {
+        // A redraw is not a successful read: preserve receipt age and any local
+        // invalidation. Shared validity also carries failures across late mount.
+        const replay = sample === value;
+        receivedAt = replay ? (Number.isFinite(receivedAt) && Number.isFinite(receipt) ? Math.min(receivedAt, receipt) : receivedAt) : receipt;
+        sample = value;
+        if (!read.valid) {
+          available = false; error = `No live sample${read.error?.message ? ' · ' + read.error.message : ''}`;
+        } else if (!replay) { available = true; error = ''; }
+        sampleGeneration = getContext().generation; renderSample();
+      },
+      unavailable(reason) { if (reason?.stale) return; available = false; error = `No live sample${reason?.message ? ' · ' + reason.message : ''}`; renderSample(); },
+      connection(ok) { if (!ok) { available = false; renderSample(); } else audioAvailability(); },
+      reset() { sample = null; receivedAt = null; available = false; error = ''; dirty = false; get('ccVolume').value = 0; get('ccAudioResult').textContent = ''; renderSample(); },
+      destroy() { clearInterval(timer); },
+    };
+  }
+  return {catalog, categories, matches, metrics, createController, mount};
+});
@@ -0,0 +1,532 @@
+#!/usr/bin/env python3
+"""Runs ON the Frame (piped over SSH): UEVR, a flat-to-VR mod for Unreal games.
+
+Usage: python3 - status APPID     # can UEVR run here, is it installed, is the game running
+       python3 - install APPID    # download the pinned official release into the game's prefix
+       python3 - start APPID      # launch the game if needed, inject UEVR, confirm SteamVR frames
+       python3 - uninstall APPID  # remove exactly what install (and UEVR's first run) created
+Prints one JSON object. Errors are {"error": "..."} with exit status 1.
+
+Verified 2026-09-29 on SteamOS 0.4.1 (build 20260925.6191901), Proton 11.0
+ARM64 and SteamVR 2.18.1 with Gravitas (1067310): after injection the game has
+UEVRBackend.dll loaded and SteamVR counts frame submits for it. Stereo image,
+head tracking and controls were not seen: the headset was unworn (docs/mods.md).
+
+UEVR's own injector (a .NET WPF app) is not used. Under Wine and FEX it hung
+or ignored input in about one session in four, and gamescope keeps real input
+away from it. Instead the official Windows embeddable Python runs INJECT_PY in
+the game's Wine session, doing what the injector does on Inject.
+
+Nothing here is bundled. UEVR comes from praydog's GitHub release and Python
+from python.org, each checked against a pinned hash. Files live in
+<prefix>/drive_c/frame-control, never in the game's own folder, and a receipt
+records what to remove.
+"""
+import hashlib
+import json
+import os
+import re
+import shutil
+import subprocess
+import sys
+import time
+import urllib.request
+import zipfile
+from pathlib import Path
+
+HOME = Path.home()
+STEAM = HOME / ".local/share/Steam"
+CACHE = HOME / ".cache/frame-control/mods"
+RECEIPTS = HOME / ".local/share/frame-control/mods"
+LOCK = Path("/tmp/frame-control-mods.lock")  # tmpfs: gone at reboot, never left in ~
+VRCMD = "/opt/steamvr/bin/linuxarm64/vrcmd"
+MANAGED = "frame-control"  # drive_c/<this> inside the game's prefix
+
+UEVR = {"version": "1.05", "dir": "uevr-1.05",
+        "url": "https://github.com/praydog/UEVR/releases/download/1.05/UEVR.zip",
+        "sha256": "af4f2f91306802d7ee4e8497d483a547ac8e9a3067dbafb81324100524215d3c"}
+# Windows x64 embeddable Python, to run INJECT_PY. Hash from python.org's
+# release-file API (sha256_sum).
+PYTHON = {"version": "3.14.7", "dir": "python-3.14.7",
+          "url": "https://www.python.org/ftp/python/3.14.7/python-3.14.7-embed-amd64.zip",
+          "sha256": "d297e5ff019966817ad8502465176139f2d3d840fa4ed84b13bed399a6ab1f15"}
+MAX_UNPACKED = 200 << 20  # the two archives unpack to about 50 MB
+MAX_DOWNLOAD = 50 << 20  # each archive is 7–13 MB
+
+# The game's environment a second program needs to join its Wine session. Not
+# WINESERVERSOCKET and friends: those are inherited file descriptors.
+GAME_ENV = re.compile(r"(WINEPREFIX|WINEDLLPATH|WINEDLLOVERRIDES|WINEFSYNC|WINEDEBUG|PATH|DISPLAY|"
+                      r"XDG_RUNTIME_DIR|PROTON_VR_RUNTIME|FEX_APP_CONFIG|FEX_APP_CONFIG_LOCATION|"
+                      r"SteamAppId|SteamGameId|STEAM_COMPAT_DATA_PATH|WINE_LARGE_ADDRESS_AWARE)=")
+
+
+# Runs under Windows Python in the game's Wine session: the steps of UEVR
+# 1.05's frontend (UEVR/MainWindow.xaml.cs Inject_Clicked, UEVR/Injector.cs)
+# with "Nullify VR plugins" on and the OpenVR runtime. Prints one JSON line.
+INJECT_PY = r"""
+import ctypes, json, os, sys
+from ctypes import wintypes as W
+exe, uevr, profile = sys.argv[1:4]
+k32 = ctypes.WinDLL("kernel32", use_last_error=True)
+H, P, SZ = W.HANDLE, ctypes.c_void_p, ctypes.c_size_t
+for name, res, args in (
+        ("OpenProcess", H, [W.DWORD, W.BOOL, W.DWORD]),
+        ("CloseHandle", W.BOOL, [H]),
+        ("VirtualAllocEx", P, [H, P, SZ, W.DWORD, W.DWORD]),
+        ("VirtualFreeEx", W.BOOL, [H, P, SZ, W.DWORD]),
+        ("WriteProcessMemory", W.BOOL, [H, P, P, SZ, P]),
+        ("CreateRemoteThread", H, [H, P, SZ, P, P, W.DWORD, P]),
+        ("WaitForSingleObject", W.DWORD, [H, W.DWORD]),
+        ("GetModuleHandleW", W.HMODULE, [W.LPCWSTR]),
+        ("LoadLibraryW", W.HMODULE, [W.LPCWSTR]),
+        ("FreeLibrary", W.BOOL, [W.HMODULE]),
+        ("GetProcAddress", P, [W.HMODULE, ctypes.c_char_p]),
+        ("CreateToolhelp32Snapshot", H, [W.DWORD, W.DWORD]),
+        ("Process32FirstW", W.BOOL, [H, P]), ("Process32NextW", W.BOOL, [H, P]),
+        ("Module32FirstW", W.BOOL, [H, P]), ("Module32NextW", W.BOOL, [H, P])):
+    fn = getattr(k32, name)
+    fn.restype, fn.argtypes = res, args
+INVALID = ctypes.c_void_p(-1).value
+
+class Entry(ctypes.Structure):  # PROCESSENTRY32W
+    _fields_ = [("size", W.DWORD), ("usage", W.DWORD), ("pid", W.DWORD), ("heap", ctypes.c_void_p),
+                ("module", W.DWORD), ("threads", W.DWORD), ("parent", W.DWORD), ("prio", ctypes.c_long),
+                ("flags", W.DWORD), ("name", W.WCHAR * 260)]
+
+class Module(ctypes.Structure):  # MODULEENTRY32W
+    _fields_ = [("size", W.DWORD), ("mid", W.DWORD), ("pid", W.DWORD), ("glbl", W.DWORD), ("proc", W.DWORD),
+                ("base", ctypes.c_void_p), ("bytes", W.DWORD), ("handle", W.HMODULE),
+                ("name", W.WCHAR * 256), ("path", W.WCHAR * 260)]
+
+def fail(msg):
+    print(json.dumps({"error": f"{msg} (Windows error {ctypes.get_last_error()})"})); sys.exit(1)
+
+def snapshot(flags, pid, entry, first, next_, match):
+    snap = k32.CreateToolhelp32Snapshot(flags, pid)
+    if not snap or snap == INVALID:
+        fail("couldn't list processes")
+    try:
+        entry.size = ctypes.sizeof(entry)
+        ok = first(snap, ctypes.byref(entry))
+        while ok:
+            if match(entry):
+                return entry
+            ok = next_(snap, ctypes.byref(entry))
+    finally:
+        k32.CloseHandle(snap)
+
+def remote_call(proc, fn, arg, wait_ms):
+    t = k32.CreateRemoteThread(proc, None, 0, fn, arg, 0, None)
+    if not t:
+        fail("CreateRemoteThread failed")
+    try:
+        return k32.WaitForSingleObject(t, wait_ms) == 0  # WAIT_OBJECT_0
+    finally:
+        k32.CloseHandle(t)
+
+def inject(proc, pid, name):
+    path = os.path.join(uevr, name)
+    data = ctypes.create_unicode_buffer(path)
+    mem = k32.VirtualAllocEx(proc, None, ctypes.sizeof(data), 0x3000, 0x04)  # commit|reserve, read/write
+    if not mem:
+        fail(f"couldn't allocate in {exe}")
+    try:
+        if not k32.WriteProcessMemory(proc, mem, data, ctypes.sizeof(data), None):
+            fail(f"couldn't write into {exe}")
+        load = k32.GetProcAddress(k32.GetModuleHandleW("kernel32.dll"), b"LoadLibraryW")
+        if not remote_call(proc, load, mem, 30000):
+            fail(f"loading {name} into {exe} didn't finish in 30 s")
+    finally:
+        k32.VirtualFreeEx(proc, mem, 0, 0x8000)  # MEM_RELEASE
+    m = snapshot(0x18, pid, Module(), k32.Module32FirstW, k32.Module32NextW,  # TH32CS_SNAPMODULE | SNAPMODULE32
+                 lambda m: m.path.lower() == path.lower())
+    if not m:
+        fail(f"{name} didn't load into {exe}")
+    return path, m.base
+
+e = snapshot(2, 0, Entry(), k32.Process32FirstW, k32.Process32NextW,  # TH32CS_SNAPPROCESS
+             lambda e: e.name.lower() == exe.lower())
+if not e:
+    fail(f"{exe} isn't running")
+pid = e.pid
+proc = k32.OpenProcess(0x1F0FFF, False, pid)  # PROCESS_ALL_ACCESS
+if not proc:
+    fail(f"couldn't open {exe}")
+path, base = inject(proc, pid, "UEVRPluginNullifier.dll")
+local = k32.LoadLibraryW(path)
+fn = local and k32.GetProcAddress(local, b"nullify")
+if not fn:
+    fail("couldn't find UEVRPluginNullifier.dll's nullify")
+offset = fn - local  # same DLL, same layout in both processes
+k32.FreeLibrary(local)
+# The frontend waits 2 s for nullify and carries on either way; so do we, but say so.
+nullified = remote_call(proc, base + offset, None, 2000)
+inject(proc, pid, "openvr_api.dll")
+# The frontend saves the runtime choice in the per-game config before UEVRBackend reads it.
+os.makedirs(profile, exist_ok=True)
+cfg = os.path.join(profile, "config.txt")
+lines = open(cfg).read().splitlines() if os.path.exists(cfg) else []
+lines = [l for l in lines if not l.startswith("Frontend_RequestedRuntime=")] + ["Frontend_RequestedRuntime=openvr_api.dll"]
+open(cfg, "w").write("\n".join(lines) + "\n")
+inject(proc, pid, "UEVRBackend.dll")
+k32.CloseHandle(proc)
+print(json.dumps({"pid": pid, "nullified": nullified}))
+"""
+
+
+class Fail(Exception):
+    pass
+
+
+def libraries():
+    """Steam library folders: the default one plus any in libraryfolders.vdf."""
+    libs = [STEAM]
+    try:
+        text = (STEAM / "steamapps/libraryfolders.vdf").read_text(errors="replace")
+        libs += [Path(p.replace("\\\\", "\\")) for p in re.findall(r'"path"\s+"([^"]+)"', text)]
+    except OSError:
+        pass
+    seen, out = set(), []
+    for lib in libs:
+        key = os.path.realpath(lib)
+        if key not in seen:
+            seen.add(key)
+            out.append(lib)
+    return out
+
+
+def game(appid):
+    """Where the game is installed and its Proton prefix, from its app manifest."""
+    for lib in libraries():
+        manifest = lib / f"steamapps/appmanifest_{appid}.acf"
+        try:
+            text = manifest.read_text(errors="replace")
+        except OSError:
+            continue
+        m = re.search(r'"installdir"\s+"([^"]+)"', text)
+        if not m:
+            continue
+        name = re.search(r'"name"\s+"([^"]*)"', text)
+        return {"name": name.group(1) if name else str(appid),
+                "dir": lib / "steamapps/common" / m.group(1),
+                "prefix": lib / f"steamapps/compatdata/{appid}/pfx"}
+    raise Fail(f"app {appid} isn't installed on this Frame")
+
+
+def shipping_exe(game_dir):
+    """The Unreal Engine game binary (…/Binaries/Win64/*-Win64-Shipping.exe), or None."""
+    found = [p for p in game_dir.glob("*/Binaries/Win64/*.exe") if p.name.lower().endswith("-win64-shipping.exe")]
+    found += [p for p in game_dir.glob("Binaries/Win64/*.exe") if p.name.lower().endswith("-win64-shipping.exe")]
+    return max(found, key=lambda p: p.stat().st_size) if found else None
+
+
+def game_pid(exe_name):
+    """The running Wine process for this .exe (its cmdline is the Windows path)."""
+    want = "\\" + exe_name.lower()
+    for d in Path("/proc").iterdir():
+        if not d.name.isdigit():
+            continue
+        try:
+            cmd = (d / "cmdline").read_bytes().split(b"\0")[0].decode(errors="replace").lower()
+        except OSError:
+            continue
+        if cmd.endswith(want):
+            return int(d.name)
+    return None
+
+
+def loaded(pid, name):
+    try:
+        return any(line.rstrip().endswith("/" + name) for line in open(f"/proc/{pid}/maps"))
+    except OSError:
+        return False
+
+
+def receipt_path(appid):
+    return RECEIPTS / f"{appid}-uevr.json"
+
+
+def read_receipt(appid):
+    try:
+        return json.loads(receipt_path(appid).read_text())
+    except (OSError, ValueError):
+        return None
+
+
+def managed_dir(g):
+    return g["prefix"] / "drive_c" / MANAGED
+
+
+def user_dirs(g, exe):
+    """What UEVR itself writes into the prefix when it first runs."""
+    user = g["prefix"] / "drive_c/users/steamuser/AppData"
+    return {"profile": user / "Roaming/UnrealVRMod" / exe.stem,  # per-game settings and log.txt
+            "injector": user / "Local/praydog"}                  # the injector's own settings
+
+
+def status(appid):
+    g = game(appid)
+    exe = shipping_exe(g["dir"])
+    r = read_receipt(appid)
+    pid = game_pid(exe.name) if exe else None
+    return {"appid": appid, "name": g["name"], "mod": "UEVR", "version": UEVR["version"],
+            "eligible": bool(exe), "exe": exe.name if exe else None,
+            "prefix": g["prefix"].is_dir(), "installed": bool(r),
+            "running": bool(pid), "injected": bool(pid and loaded(pid, "UEVRBackend.dll"))}
+
+
+def fetch(url, digest, algo):
+    """Download into the cache once, and check its hash every time it's used."""
+    CACHE.mkdir(parents=True, exist_ok=True)
+    path = CACHE / url.rsplit("/", 1)[1]
+    if not path.exists():
+        part = path.with_suffix(path.suffix + ".part")
+        try:
+            with urllib.request.urlopen(url, timeout=60) as r, open(part, "wb") as f:
+                for block in iter(lambda: r.read(1 << 20), b""):
+                    if f.tell() + len(block) > MAX_DOWNLOAD:
+                        raise Fail(f"{url} is bigger than expected; stopped the download")
+                    f.write(block)
+        except (OSError, Fail) as e:
+            part.unlink(missing_ok=True)
+            raise Fail(f"download failed: {url}: {e}")
+        part.rename(path)
+    h = hashlib.new(algo)
+    with open(path, "rb") as f:
+        for block in iter(lambda: f.read(1 << 20), b""):
+            h.update(block)
+    if h.hexdigest() != digest:
+        path.unlink()
+        raise Fail(f"{path.name} doesn't match its published {algo}; deleted it, try again")
+    return path
+
+
+def unpack(archive, dest, budget):
+    """Extract a ZIP into dest, refusing anything that would land outside it."""
+    root = os.path.realpath(dest)
+    with zipfile.ZipFile(archive) as z:
+        for info in z.infolist():
+            target = os.path.realpath(os.path.join(dest, info.filename))
+            if target != root and not target.startswith(root + os.sep):
+                raise Fail(f"{archive.name} has an entry outside its folder: {info.filename}")
+            if (info.external_attr >> 16) & 0o170000 == 0o120000:
+                raise Fail(f"{archive.name} contains a symlink: {info.filename}")
+            budget -= info.file_size
+            if budget < 0:
+                raise Fail(f"{archive.name} unpacks to more than expected")
+        z.extractall(dest)
+    return budget
+
+
+def install(appid):
+    g = game(appid)
+    exe = shipping_exe(g["dir"])
+    if not exe:
+        raise Fail(f"{g['name']} doesn't look like an Unreal Engine game (no *-Win64-Shipping.exe), so UEVR can't hook it")
+    if not g["prefix"].is_dir():
+        raise Fail(f"{g['name']} has no Proton prefix yet; play it once, then add the mod")
+    if game_pid(exe.name):
+        raise Fail(f"{g['name']} is running; quit it first")
+    if read_receipt(appid):
+        return {"message": f"UEVR {UEVR['version']} is already installed for {g['name']}", **status(appid)}
+    archives = [(fetch(UEVR["url"], UEVR["sha256"], "sha256"), UEVR["dir"])]
+    archives.append((fetch(PYTHON["url"], PYTHON["sha256"], "sha256"), PYTHON["dir"]))
+    base = managed_dir(g)
+    dirs = user_dirs(g, exe)
+    fresh = [str(d) for d in (dirs["profile"].parent, base) if not d.exists()]  # remove on uninstall if empty
+    stage = base / f".staging-{os.getpid()}"
+    shutil.rmtree(stage, ignore_errors=True)
+    try:
+        budget = MAX_UNPACKED
+        for archive, sub in archives:
+            budget = unpack(archive, stage / sub, budget)
+        for need in (stage / UEVR["dir"] / "UEVRBackend.dll", stage / PYTHON["dir"] / "python.exe"):
+            if not need.is_file():
+                raise Fail(f"the download has no {need.name}")
+        if game_pid(exe.name):  # it may have started during the download
+            raise Fail(f"{g['name']} started; quit it first")
+        (stage / PYTHON["dir"] / "frame_inject.py").write_text(INJECT_PY)
+        for sub in (UEVR["dir"], PYTHON["dir"]):
+            shutil.rmtree(base / sub, ignore_errors=True)
+            (stage / sub).rename(base / sub)
+    finally:
+        shutil.rmtree(stage, ignore_errors=True)
+        if str(base) in fresh:
+            try:
+                base.rmdir()  # only succeeds if the install failed and left it empty
+            except OSError:
+                pass
+    receipt = {"appid": appid, "mod": "UEVR", "version": UEVR["version"], "exe": exe.name,
+               "installed": int(time.time()), "prefix": str(g["prefix"]),
+               "remove": [str(base / UEVR["dir"]), str(base / PYTHON["dir"])],
+               # Parents that didn't exist yet (UEVR makes UnrealVRMod), deepest first.
+               "remove_if_empty": fresh,
+               # UEVR creates these on first injection. Remove them on uninstall
+               # only if they weren't there before, so earlier settings survive.
+               "remove_if_created": {k: str(v) for k, v in dirs.items() if not v.exists()},
+               "sources": [UEVR["url"], PYTHON["url"]]}
+    RECEIPTS.mkdir(parents=True, exist_ok=True)
+    tmp = receipt_path(appid).with_suffix(".tmp")
+    tmp.write_text(json.dumps(receipt, indent=1))
+    tmp.rename(receipt_path(appid))
+    return {"message": f"Installed UEVR {UEVR['version']} for {g['name']}", **status(appid)}
+
+
+def x11_windows(display):
+    """(id, name, width) for each named top-level window, via xwininfo."""
+    try:
+        out = subprocess.run(["xwininfo", "-root", "-tree"], env={**os.environ, "DISPLAY": display},
+                             capture_output=True, text=True, timeout=10).stdout
+    except (OSError, subprocess.TimeoutExpired):
+        return []
+    return [(int(m[1], 16), m[2], int(m[3])) for m in re.finditer(r'(0x[0-9a-f]+) "([^"]*)":.*?\)\s+(\d+)x\d+', out)]
+
+
+def frame_submits(appid):
+    """SteamVR's count of frames the app has submitted, or None if it isn't a scene app."""
+    try:
+        stats = json.loads(subprocess.run([VRCMD, "--stats"], capture_output=True, text=True, timeout=15).stdout)
+    except (OSError, ValueError, subprocess.TimeoutExpired):
+        return None
+    if not isinstance(stats, list):
+        return None
+    return next((s.get("frame_submits") for s in stats if isinstance(s, dict) and s.get("key") == f"steam.app.{appid}"), None)
+
+
+def wait(what, seconds, check, step=2):
+    end = time.time() + seconds
+    while time.time() < end:
+        v = check()
+        if v is not None and v is not False:  # 0 frames is still an answer
+            return v
+        time.sleep(step)
+    raise Fail(f"timed out waiting for {what}")
+
+
+def start(appid):
+    g = game(appid)
+    r = read_receipt(appid)
+    if not r:
+        raise Fail(f"UEVR isn't installed for {g['name']}")
+    exe = r["exe"]
+    pid = game_pid(exe)
+    if pid and loaded(pid, "UEVRBackend.dll"):
+        return {"message": f"UEVR is already running in {g['name']}", "frame_submits": frame_submits(appid), **status(appid)}
+    if not pid:
+        subprocess.Popen(["steam", f"steam://rungameid/{appid}"], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL,
+                         env={**os.environ, "DISPLAY": os.environ.get("DISPLAY", ":0")}, start_new_session=True)
+        pid = wait(f"{g['name']} to start", 120, lambda: game_pid(exe))
+    try:
+        environ = Path(f"/proc/{pid}/environ").read_text(errors="replace")
+    except OSError:
+        raise Fail(f"{exe} exited") from None
+    game_env = dict(line.split("=", 1) for line in environ.split("\0") if GAME_ENV.match(line))
+    display = game_env.get("DISPLAY")
+    if not display or "WINEPREFIX" not in game_env:
+        raise Fail(f"{exe} doesn't look like a Proton game process")
+    # UEVR hooks the game's D3D11/12 device, so wait for its window. Proton's
+    # own helper windows ("Steam", "Default IME", …) are small.
+    wait("the game window", 90, lambda: any(w[2] >= 640 for w in x11_windows(display)))
+    time.sleep(10)
+    # Our own environment (HOME and the rest) under the game's Wine settings.
+    env = {**os.environ, **game_env}
+    base = f"C:\\{MANAGED}"
+    profile = f"C:\\users\\steamuser\\AppData\\Roaming\\UnrealVRMod\\{Path(exe).stem}"
+    try:
+        out = subprocess.run(["wine", f"{base}\\{PYTHON['dir']}\\python.exe", f"{base}\\{PYTHON['dir']}\\frame_inject.py",
+                              exe, f"{base}\\{UEVR['dir']}", profile], env=env, capture_output=True, text=True,
+                             timeout=120, stdin=subprocess.DEVNULL,
+                             cwd=str(Path(r["prefix"]) / "drive_c" / MANAGED))
+    except subprocess.TimeoutExpired:
+        raise Fail("the injection step didn't finish in 2 minutes") from None
+    reply = None
+    for line in reversed(out.stdout.splitlines()):
+        try:
+            reply = json.loads(line)
+            break
+        except ValueError:
+            continue
+    if not isinstance(reply, dict):
+        reply = None
+    if not reply or "error" in reply:
+        raise Fail("UEVR injection failed: " + (reply or {}).get("error", (out.stderr.strip().splitlines() or ["no output"])[-1]))
+    try:
+        wait("UEVRBackend.dll to load in the game", 20, lambda: loaded(pid, "UEVRBackend.dll"))
+    except Fail:
+        raise Fail(f"the injection reported success but {exe} has no UEVRBackend.dll") from None
+    submits = None
+    try:
+        submits = wait("SteamVR frames", 30, lambda: frame_submits(appid))
+    except Fail:
+        pass
+    return {"message": f"UEVR injected into {g['name']}" + ("; SteamVR is receiving its frames" if submits is not None
+                                                            else "; SteamVR hasn't reported frames from it yet"),
+            "frame_submits": submits, **status(appid)}
+
+
+def uninstall(appid):
+    r = read_receipt(appid)
+    if not r:
+        raise Fail(f"UEVR isn't installed for app {appid}")
+    if game_pid(r["exe"]):
+        raise Fail("the game is running; quit it first")
+    prefix = os.path.realpath(r["prefix"])
+    if not prefix.endswith(f"/steamapps/compatdata/{appid}/pfx"):
+        raise Fail(f"receipt names a prefix that isn't app {appid}'s: {r['prefix']}")
+    # Only ever our folder and UEVR's own settings folders for this game, even
+    # if the receipt says otherwise.
+    managed = os.path.join(prefix, "drive_c", MANAGED)
+    uevr_dirs = {os.path.realpath(str(d)) for d in user_dirs({"prefix": Path(prefix)}, Path(r["exe"])).values()}
+    targets = list(r.get("remove", [])) + list(r.get("remove_if_created", {}).values())
+    for t in targets:
+        real = os.path.realpath(t)
+        if not (real.startswith(managed + os.sep) or real in uevr_dirs):
+            raise Fail(f"receipt lists a path Frame Control didn't create: {t}")
+    for t in targets:
+        shutil.rmtree(t, ignore_errors=True)
+    left = [t for t in targets if os.path.lexists(t)]
+    if left:  # keep the receipt, so Remove can be tried again
+        raise Fail("couldn't remove " + ", ".join(left))
+    parents = {os.path.realpath(os.path.join(prefix, "drive_c/users/steamuser/AppData/Roaming/UnrealVRMod")), managed}
+    for t in r.get("remove_if_empty", []):
+        if os.path.realpath(t) in parents:
+            try:
+                os.rmdir(t)
+            except OSError:
+                pass  # something else lives there now
+    receipt_path(appid).unlink()
+    if not any(RECEIPTS.glob("*-uevr.json")):  # no other game uses the downloads
+        shutil.rmtree(CACHE, ignore_errors=True)
+        try:
+            RECEIPTS.rmdir()
+        except OSError:
+            pass
+    return {"message": "Removed UEVR", "appid": appid, "removed": targets}
+
+
+def main(argv):
+    if len(argv) != 2 or argv[0] not in ("status", "install", "start", "uninstall") or not argv[1].isdigit():
+        raise Fail("usage: status|install|start|uninstall APPID")
+    action = {"status": status, "install": install, "start": start, "uninstall": uninstall}[argv[0]]
+    if action is status:
+        return status(int(argv[1]))
+    import fcntl  # only on the Frame; the server and its tests also import this module on Windows
+    # One change at a time, or an uninstall could delete what an install is moving in.
+    LOCK.parent.mkdir(parents=True, exist_ok=True)
+    with open(LOCK, "w") as lock:
+        try:
+            fcntl.flock(lock, fcntl.LOCK_EX | fcntl.LOCK_NB)
+        except OSError:
+            raise Fail("another mod action is still running on the Frame; try again when it finishes") from None
+        return action(int(argv[1]))
+
+
+if __name__ == "__main__":
+    try:
+        print(json.dumps(main(sys.argv[1:])))
+    except Fail as e:
+        print(json.dumps({"error": str(e)}))
+        sys.exit(1)
+    except Exception as e:  # still one JSON object, for the server to show
+        print(json.dumps({"error": f"{type(e).__name__}: {e}"}))
+        sys.exit(1)
@@ -302,6 +302,7 @@ def status():
        "disk": {"root": disk("/"), "home": disk("/home")},
        "memory": memory(),
        "temp": max_temp(),
+        "thermalAlerts": thermal_alerts(),
        "wifi": wifi(),
        "ip": ip_addr(),
        "volume": volume(),
@@ -18,7 +18,9 @@ Report a problem dialog (frame_report.py) sends bug reports privately to the
 same project whatever is chosen here.

 Events are identified by a random id made on first run, not by the person or
-computer, and sent without person profiles or GeoIP. Nothing is sent without a
+computer, and sent without person profiles or GeoIP. Opens, installs and updates
+carry a country instead, worked out on this computer from its time zone setting
+(frame_timezones.py), to see roughly where Frame Control is used. Nothing is sent without a
 project key (ui/telemetry.json or $FRAME_CONTROL_POSTHOG_KEY), from a source
 checkout unless $FRAME_CONTROL_TELEMETRY=1, or when $DO_NOT_TRACK=1 or
 $FRAME_CONTROL_TELEMETRY=0.
@@ -43,6 +45,7 @@ from pathlib import Path
 from urllib.parse import urlsplit

 import frame_host
+import frame_timezones

 HERE = Path(__file__).resolve().parent
 STATE = frame_host.data_dir('telemetry')
@@ -65,10 +68,11 @@ EXPECTED_CATEGORIES = ('frame_unreachable', 'frame_not_set_up', 'frame_auth')
 DEFAULT_HOST = 'https://us.i.posthog.com'

 LEVELS = ('usage', 'compat', 'diagnostics')
+NOTICE_VERSION = 2  # raise when the notice lists something new: it's shown again (2: country)
 # Events the page may send through /api/telemetry, and the properties each may carry.
 PAGE_EVENTS = {'tab_viewed': {'tab'}, 'update_offered': {'to_version'},
               'update_started': {'to_version'}, 'update_failed': {'to_version', 'error_category'}}
-TABS = {'home', 'games', 'android', 'tools'}
+TABS = {'home', 'games', 'android', 'tools', 'devices', 'control'}

 _lock = threading.RLock()
 _send_lock = threading.Lock()  # held while sending; consent changes wait for it
@@ -105,7 +109,7 @@ def blocked():

 def _defaults():
    return {'id': str(uuid.uuid4()), 'usage': True, 'compat': False, 'diagnostics': False,
-            'notice_shown': False, 'installed_sent': False, 'last_version': None, 'last_open_day': None,
+            'notice_shown': False, 'notice_version': 0, 'installed_sent': False, 'last_version': None, 'last_open_day': None,
            'frames_seen': [], 'compat_sent': []}


@@ -147,12 +151,12 @@ def update_settings(changes):
    under way finishes first, so nothing leaves after this returns."""
    with _send_lock, _lock:
        s = settings()
-        if 'noticeShown' in changes:
-            s['notice_shown'] = bool(changes['noticeShown']) or s['notice_shown']
+        if changes.get('noticeShown'):
+            s['notice_shown'], s['notice_version'] = True, NOTICE_VERSION
        for level in LEVELS:
            if level in changes:
                s[level] = bool(changes[level])
-                s['notice_shown'] = True
+                s['notice_shown'] = True  # only the notice itself moves notice_version on
        _save(s)
        _drop_unwanted(s)
    if changes.get('compat'):
@@ -161,10 +165,16 @@ def update_settings(changes):
    return state()


+def _notice_current(s):
+    """Whether the notice this person saw lists everything that's sent now. If not, the page
+    shows it again, and what it added waits until it has been seen."""
+    return s['notice_shown'] and s['notice_version'] >= NOTICE_VERSION
+
+
 def state():
    """What the page shows: the choices, why sending is blocked, and what was sent."""
    s = settings()
-    return {'usage': s['usage'], 'compat': s['compat'], 'noticeShown': s['notice_shown'],
+    return {'usage': s['usage'], 'compat': s['compat'], 'noticeShown': _notice_current(s),
            'diagnostics': s['diagnostics'],
            'blocked': blocked(), 'id': s['id'], 'queued': len(_read_lines(OUTBOX)),
            'sent': list(reversed(_read_lines(SENT)))[:50]}
@@ -372,20 +382,36 @@ def page_event(body):
    return {'queued': capture(name, props)}


+def country():
+    """The two-letter country of the computer's time zone setting, or None. Only names in the
+    tz database's table count, so nothing else in the setting can be sent. The app passes the
+    zone from Electron, which knows it on every OS; from a checkout it's read from /etc/localtime."""
+    tz = os.environ.get('FRAME_CONTROL_TIMEZONE') or os.environ.get('TZ', '').lstrip(':')
+    if not tz:
+        try:
+            tz = os.path.realpath('/etc/localtime').split('/zoneinfo/', 1)[1]
+        except (OSError, IndexError):
+            return None
+    return frame_timezones.COUNTRY.get(tz)
+
+
 def app_started():
-    """Once per server start: first install, an update, and one open a day."""
+    """Once per server start: first install, an update, and one open a day, with the country
+    (left out when sending if the notice this person saw came before it: flush)."""
    if blocked():
        return
    with _lock:
        s = settings()
        version, today = app_version(), time.strftime('%Y-%m-%d')
+        cc = country()
+        where = {'country': cc} if cc else {}
        if not s['installed_sent']:
-            capture('app_installed')
+            capture('app_installed', where)
            s['installed_sent'] = True
        elif s['last_version'] and s['last_version'] != version:
-            capture('app_updated', {'from_version': s['last_version']})
+            capture('app_updated', {'from_version': s['last_version'], **where})
        if s['last_open_day'] != today:
-            capture('app_opened')
+            capture('app_opened', where)
            s['last_open_day'] = today
        s['last_version'] = version
        _save(s)
@@ -580,10 +606,14 @@ def flush(timeout=20):
        if blocked() or not settings()['notice_shown']:
            return 0
        with _lock:
-            _drop_unwanted(settings())
+            s = settings()
+            _drop_unwanted(s)
            batch = _read_lines(OUTBOX)[:100]
        if not batch:
            return 0
+        if not _notice_current(s):  # what a newer notice added stays here until it's been seen
+            for e in batch:
+                e['properties'].pop('country', None)
        try:
            post(batch, timeout)
        except SendError:
@@ -0,0 +1,547 @@
+"""Time zone name -> two-letter country, from the IANA tz database 2026c (zone.tab, and
+the old names in tzdata.zi that link to its zones). Generated by scripts/timezones.py.
+Zones that aren't in one country, such as UTC, aren't here."""
+COUNTRY = {
+    'Africa/Abidjan': 'CI',
+    'Africa/Accra': 'GH',
+    'Africa/Addis_Ababa': 'ET',
+    'Africa/Algiers': 'DZ',
+    'Africa/Asmara': 'ER',
+    'Africa/Asmera': 'ER',
+    'Africa/Bamako': 'ML',
+    'Africa/Bangui': 'CF',
+    'Africa/Banjul': 'GM',
+    'Africa/Bissau': 'GW',
+    'Africa/Blantyre': 'MW',
+    'Africa/Brazzaville': 'CG',
+    'Africa/Bujumbura': 'BI',
+    'Africa/Cairo': 'EG',
+    'Africa/Casablanca': 'MA',
+    'Africa/Ceuta': 'ES',
+    'Africa/Conakry': 'GN',
+    'Africa/Dakar': 'SN',
+    'Africa/Dar_es_Salaam': 'TZ',
+    'Africa/Djibouti': 'DJ',
+    'Africa/Douala': 'CM',
+    'Africa/El_Aaiun': 'EH',
+    'Africa/Freetown': 'SL',
+    'Africa/Gaborone': 'BW',
+    'Africa/Harare': 'ZW',
+    'Africa/Johannesburg': 'ZA',
+    'Africa/Juba': 'SS',
+    'Africa/Kampala': 'UG',
+    'Africa/Khartoum': 'SD',
+    'Africa/Kigali': 'RW',
+    'Africa/Kinshasa': 'CD',
+    'Africa/Lagos': 'NG',
+    'Africa/Libreville': 'GA',
+    'Africa/Lome': 'TG',
+    'Africa/Luanda': 'AO',
+    'Africa/Lubumbashi': 'CD',
+    'Africa/Lusaka': 'ZM',
+    'Africa/Malabo': 'GQ',
+    'Africa/Maputo': 'MZ',
+    'Africa/Maseru': 'LS',
+    'Africa/Mbabane': 'SZ',
+    'Africa/Mogadishu': 'SO',
+    'Africa/Monrovia': 'LR',
+    'Africa/Nairobi': 'KE',
+    'Africa/Ndjamena': 'TD',
+    'Africa/Niamey': 'NE',
+    'Africa/Nouakchott': 'MR',
+    'Africa/Ouagadougou': 'BF',
+    'Africa/Porto-Novo': 'BJ',
+    'Africa/Sao_Tome': 'ST',
+    'Africa/Timbuktu': 'ML',
+    'Africa/Tripoli': 'LY',
+    'Africa/Tunis': 'TN',
+    'Africa/Windhoek': 'NA',
+    'America/Adak': 'US',
+    'America/Anchorage': 'US',
+    'America/Anguilla': 'AI',
+    'America/Antigua': 'AG',
+    'America/Araguaina': 'BR',
+    'America/Argentina/Buenos_Aires': 'AR',
+    'America/Argentina/Catamarca': 'AR',
+    'America/Argentina/ComodRivadavia': 'AR',
+    'America/Argentina/Cordoba': 'AR',
+    'America/Argentina/Jujuy': 'AR',
+    'America/Argentina/La_Rioja': 'AR',
+    'America/Argentina/Mendoza': 'AR',
+    'America/Argentina/Rio_Gallegos': 'AR',
+    'America/Argentina/Salta': 'AR',
+    'America/Argentina/San_Juan': 'AR',
+    'America/Argentina/San_Luis': 'AR',
+    'America/Argentina/Tucuman': 'AR',
+    'America/Argentina/Ushuaia': 'AR',
+    'America/Aruba': 'AW',
+    'America/Asuncion': 'PY',
+    'America/Atikokan': 'CA',
+    'America/Atka': 'US',
+    'America/Bahia': 'BR',
+    'America/Bahia_Banderas': 'MX',
+    'America/Barbados': 'BB',
+    'America/Belem': 'BR',
+    'America/Belize': 'BZ',
+    'America/Blanc-Sablon': 'CA',
+    'America/Boa_Vista': 'BR',
+    'America/Bogota': 'CO',
+    'America/Boise': 'US',
+    'America/Buenos_Aires': 'AR',
+    'America/Cambridge_Bay': 'CA',
+    'America/Campo_Grande': 'BR',
+    'America/Cancun': 'MX',
+    'America/Caracas': 'VE',
+    'America/Catamarca': 'AR',
+    'America/Cayenne': 'GF',
+    'America/Cayman': 'KY',
+    'America/Chicago': 'US',
+    'America/Chihuahua': 'MX',
+    'America/Ciudad_Juarez': 'MX',
+    'America/Coral_Harbour': 'CA',
+    'America/Cordoba': 'AR',
+    'America/Costa_Rica': 'CR',
+    'America/Coyhaique': 'CL',
+    'America/Creston': 'CA',
+    'America/Cuiaba': 'BR',
+    'America/Curacao': 'CW',
+    'America/Danmarkshavn': 'GL',
+    'America/Dawson': 'CA',
+    'America/Dawson_Creek': 'CA',
+    'America/Denver': 'US',
+    'America/Detroit': 'US',
+    'America/Dominica': 'DM',
+    'America/Edmonton': 'CA',
+    'America/Eirunepe': 'BR',
+    'America/El_Salvador': 'SV',
+    'America/Ensenada': 'MX',
+    'America/Fort_Nelson': 'CA',
+    'America/Fort_Wayne': 'US',
+    'America/Fortaleza': 'BR',
+    'America/Glace_Bay': 'CA',
+    'America/Godthab': 'GL',
+    'America/Goose_Bay': 'CA',
+    'America/Grand_Turk': 'TC',
+    'America/Grenada': 'GD',
+    'America/Guadeloupe': 'GP',
+    'America/Guatemala': 'GT',
+    'America/Guayaquil': 'EC',
+    'America/Guyana': 'GY',
+    'America/Halifax': 'CA',
+    'America/Havana': 'CU',
+    'America/Hermosillo': 'MX',
+    'America/Indiana/Indianapolis': 'US',
+    'America/Indiana/Knox': 'US',
+    'America/Indiana/Marengo': 'US',
+    'America/Indiana/Petersburg': 'US',
+    'America/Indiana/Tell_City': 'US',
+    'America/Indiana/Vevay': 'US',
+    'America/Indiana/Vincennes': 'US',
+    'America/Indiana/Winamac': 'US',
+    'America/Indianapolis': 'US',
+    'America/Inuvik': 'CA',
+    'America/Iqaluit': 'CA',
+    'America/Jamaica': 'JM',
+    'America/Jujuy': 'AR',
+    'America/Juneau': 'US',
+    'America/Kentucky/Louisville': 'US',
+    'America/Kentucky/Monticello': 'US',
+    'America/Knox_IN': 'US',
+    'America/Kralendijk': 'BQ',
+    'America/La_Paz': 'BO',
+    'America/Lima': 'PE',
+    'America/Los_Angeles': 'US',
+    'America/Louisville': 'US',
+    'America/Lower_Princes': 'SX',
+    'America/Maceio': 'BR',
+    'America/Managua': 'NI',
+    'America/Manaus': 'BR',
+    'America/Marigot': 'MF',
+    'America/Martinique': 'MQ',
+    'America/Matamoros': 'MX',
+    'America/Mazatlan': 'MX',
+    'America/Mendoza': 'AR',
+    'America/Menominee': 'US',
+    'America/Merida': 'MX',
+    'America/Metlakatla': 'US',
+    'America/Mexico_City': 'MX',
+    'America/Miquelon': 'PM',
+    'America/Moncton': 'CA',
+    'America/Monterrey': 'MX',
+    'America/Montevideo': 'UY',
+    'America/Montreal': 'CA',
+    'America/Montserrat': 'MS',
+    'America/Nassau': 'BS',
+    'America/New_York': 'US',
+    'America/Nipigon': 'CA',
+    'America/Nome': 'US',
+    'America/Noronha': 'BR',
+    'America/North_Dakota/Beulah': 'US',
+    'America/North_Dakota/Center': 'US',
+    'America/North_Dakota/New_Salem': 'US',
+    'America/Nuuk': 'GL',
+    'America/Ojinaga': 'MX',
+    'America/Panama': 'PA',
+    'America/Pangnirtung': 'CA',
+    'America/Paramaribo': 'SR',
+    'America/Phoenix': 'US',
+    'America/Port-au-Prince': 'HT',
+    'America/Port_of_Spain': 'TT',
+    'America/Porto_Acre': 'BR',
+    'America/Porto_Velho': 'BR',
+    'America/Puerto_Rico': 'PR',
+    'America/Punta_Arenas': 'CL',
+    'America/Rainy_River': 'CA',
+    'America/Rankin_Inlet': 'CA',
+    'America/Recife': 'BR',
+    'America/Regina': 'CA',
+    'America/Resolute': 'CA',
+    'America/Rio_Branco': 'BR',
+    'America/Rosario': 'AR',
+    'America/Santa_Isabel': 'MX',
+    'America/Santarem': 'BR',
+    'America/Santiago': 'CL',
+    'America/Santo_Domingo': 'DO',
+    'America/Sao_Paulo': 'BR',
+    'America/Scoresbysund': 'GL',
+    'America/Shiprock': 'US',
+    'America/Sitka': 'US',
+    'America/St_Barthelemy': 'BL',
+    'America/St_Johns': 'CA',
+    'America/St_Kitts': 'KN',
+    'America/St_Lucia': 'LC',
+    'America/St_Thomas': 'VI',
+    'America/St_Vincent': 'VC',
+    'America/Swift_Current': 'CA',
+    'America/Tegucigalpa': 'HN',
+    'America/Thule': 'GL',
+    'America/Thunder_Bay': 'CA',
+    'America/Tijuana': 'MX',
+    'America/Toronto': 'CA',
+    'America/Tortola': 'VG',
+    'America/Vancouver': 'CA',
+    'America/Virgin': 'VI',
+    'America/Whitehorse': 'CA',
+    'America/Winnipeg': 'CA',
+    'America/Yakutat': 'US',
+    'America/Yellowknife': 'CA',
+    'Antarctica/Casey': 'AQ',
+    'Antarctica/Davis': 'AQ',
+    'Antarctica/DumontDUrville': 'AQ',
+    'Antarctica/Macquarie': 'AU',
+    'Antarctica/Mawson': 'AQ',
+    'Antarctica/McMurdo': 'AQ',
+    'Antarctica/Palmer': 'AQ',
+    'Antarctica/Rothera': 'AQ',
+    'Antarctica/South_Pole': 'AQ',
+    'Antarctica/Syowa': 'AQ',
+    'Antarctica/Troll': 'AQ',
+    'Antarctica/Vostok': 'AQ',
+    'Arctic/Longyearbyen': 'SJ',
+    'Asia/Aden': 'YE',
+    'Asia/Almaty': 'KZ',
+    'Asia/Amman': 'JO',
+    'Asia/Anadyr': 'RU',
+    'Asia/Aqtau': 'KZ',
+    'Asia/Aqtobe': 'KZ',
+    'Asia/Ashgabat': 'TM',
+    'Asia/Ashkhabad': 'TM',
+    'Asia/Atyrau': 'KZ',
+    'Asia/Baghdad': 'IQ',
+    'Asia/Bahrain': 'BH',
+    'Asia/Baku': 'AZ',
+    'Asia/Bangkok': 'TH',
+    'Asia/Barnaul': 'RU',
+    'Asia/Beirut': 'LB',
+    'Asia/Bishkek': 'KG',
+    'Asia/Brunei': 'BN',
+    'Asia/Calcutta': 'IN',
+    'Asia/Chita': 'RU',
+    'Asia/Choibalsan': 'MN',
+    'Asia/Chongqing': 'CN',
+    'Asia/Chungking': 'CN',
+    'Asia/Colombo': 'LK',
+    'Asia/Dacca': 'BD',
+    'Asia/Damascus': 'SY',
+    'Asia/Dhaka': 'BD',
+    'Asia/Dili': 'TL',
+    'Asia/Dubai': 'AE',
+    'Asia/Dushanbe': 'TJ',
+    'Asia/Famagusta': 'CY',
+    'Asia/Gaza': 'PS',
+    'Asia/Harbin': 'CN',
+    'Asia/Hebron': 'PS',
+    'Asia/Ho_Chi_Minh': 'VN',
+    'Asia/Hong_Kong': 'HK',
+    'Asia/Hovd': 'MN',
+    'Asia/Irkutsk': 'RU',
+    'Asia/Istanbul': 'TR',
+    'Asia/Jakarta': 'ID',
+    'Asia/Jayapura': 'ID',
+    'Asia/Jerusalem': 'IL',
+    'Asia/Kabul': 'AF',
+    'Asia/Kamchatka': 'RU',
+    'Asia/Karachi': 'PK',
+    'Asia/Kashgar': 'CN',
+    'Asia/Kathmandu': 'NP',
+    'Asia/Katmandu': 'NP',
+    'Asia/Khandyga': 'RU',
+    'Asia/Kolkata': 'IN',
+    'Asia/Krasnoyarsk': 'RU',
+    'Asia/Kuala_Lumpur': 'MY',
+    'Asia/Kuching': 'MY',
+    'Asia/Kuwait': 'KW',
+    'Asia/Macao': 'MO',
+    'Asia/Macau': 'MO',
+    'Asia/Magadan': 'RU',
+    'Asia/Makassar': 'ID',
+    'Asia/Manila': 'PH',
+    'Asia/Muscat': 'OM',
+    'Asia/Nicosia': 'CY',
+    'Asia/Novokuznetsk': 'RU',
+    'Asia/Novosibirsk': 'RU',
+    'Asia/Omsk': 'RU',
+    'Asia/Oral': 'KZ',
+    'Asia/Phnom_Penh': 'KH',
+    'Asia/Pontianak': 'ID',
+    'Asia/Pyongyang': 'KP',
+    'Asia/Qatar': 'QA',
+    'Asia/Qostanay': 'KZ',
+    'Asia/Qyzylorda': 'KZ',
+    'Asia/Rangoon': 'MM',
+    'Asia/Riyadh': 'SA',
+    'Asia/Saigon': 'VN',
+    'Asia/Sakhalin': 'RU',
+    'Asia/Samarkand': 'UZ',
+    'Asia/Seoul': 'KR',
+    'Asia/Shanghai': 'CN',
+    'Asia/Singapore': 'SG',
+    'Asia/Srednekolymsk': 'RU',
+    'Asia/Taipei': 'TW',
+    'Asia/Tashkent': 'UZ',
+    'Asia/Tbilisi': 'GE',
+    'Asia/Tehran': 'IR',
+    'Asia/Tel_Aviv': 'IL',
+    'Asia/Thimbu': 'BT',
+    'Asia/Thimphu': 'BT',
+    'Asia/Tokyo': 'JP',
+    'Asia/Tomsk': 'RU',
+    'Asia/Ujung_Pandang': 'ID',
+    'Asia/Ulaanbaatar': 'MN',
+    'Asia/Ulan_Bator': 'MN',
+    'Asia/Urumqi': 'CN',
+    'Asia/Ust-Nera': 'RU',
+    'Asia/Vientiane': 'LA',
+    'Asia/Vladivostok': 'RU',
+    'Asia/Yakutsk': 'RU',
+    'Asia/Yangon': 'MM',
+    'Asia/Yekaterinburg': 'RU',
+    'Asia/Yerevan': 'AM',
+    'Atlantic/Azores': 'PT',
+    'Atlantic/Bermuda': 'BM',
+    'Atlantic/Canary': 'ES',
+    'Atlantic/Cape_Verde': 'CV',
+    'Atlantic/Faeroe': 'FO',
+    'Atlantic/Faroe': 'FO',
+    'Atlantic/Jan_Mayen': 'SJ',
+    'Atlantic/Madeira': 'PT',
+    'Atlantic/Reykjavik': 'IS',
+    'Atlantic/South_Georgia': 'GS',
+    'Atlantic/St_Helena': 'SH',
+    'Atlantic/Stanley': 'FK',
+    'Australia/ACT': 'AU',
+    'Australia/Adelaide': 'AU',
+    'Australia/Brisbane': 'AU',
+    'Australia/Broken_Hill': 'AU',
+    'Australia/Canberra': 'AU',
+    'Australia/Currie': 'AU',
+    'Australia/Darwin': 'AU',
+    'Australia/Eucla': 'AU',
+    'Australia/Hobart': 'AU',
+    'Australia/LHI': 'AU',
+    'Australia/Lindeman': 'AU',
+    'Australia/Lord_Howe': 'AU',
+    'Australia/Melbourne': 'AU',
+    'Australia/NSW': 'AU',
+    'Australia/North': 'AU',
+    'Australia/Perth': 'AU',
+    'Australia/Queensland': 'AU',
+    'Australia/South': 'AU',
+    'Australia/Sydney': 'AU',
+    'Australia/Tasmania': 'AU',
+    'Australia/Victoria': 'AU',
+    'Australia/West': 'AU',
+    'Australia/Yancowinna': 'AU',
+    'Brazil/Acre': 'BR',
+    'Brazil/DeNoronha': 'BR',
+    'Brazil/East': 'BR',
+    'Brazil/West': 'BR',
+    'Canada/Atlantic': 'CA',
+    'Canada/Central': 'CA',
+    'Canada/Eastern': 'CA',
+    'Canada/Mountain': 'CA',
+    'Canada/Newfoundland': 'CA',
+    'Canada/Pacific': 'CA',
+    'Canada/Saskatchewan': 'CA',
+    'Canada/Yukon': 'CA',
+    'Chile/Continental': 'CL',
+    'Chile/EasterIsland': 'CL',
+    'Cuba': 'CU',
+    'Egypt': 'EG',
+    'Eire': 'IE',
+    'Europe/Amsterdam': 'NL',
+    'Europe/Andorra': 'AD',
+    'Europe/Astrakhan': 'RU',
+    'Europe/Athens': 'GR',
+    'Europe/Belfast': 'GB',
+    'Europe/Belgrade': 'RS',
+    'Europe/Berlin': 'DE',
+    'Europe/Bratislava': 'SK',
+    'Europe/Brussels': 'BE',
+    'Europe/Bucharest': 'RO',
+    'Europe/Budapest': 'HU',
+    'Europe/Busingen': 'DE',
+    'Europe/Chisinau': 'MD',
+    'Europe/Copenhagen': 'DK',
+    'Europe/Dublin': 'IE',
+    'Europe/Gibraltar': 'GI',
+    'Europe/Guernsey': 'GG',
+    'Europe/Helsinki': 'FI',
+    'Europe/Isle_of_Man': 'IM',
+    'Europe/Istanbul': 'TR',
+    'Europe/Jersey': 'JE',
+    'Europe/Kaliningrad': 'RU',
+    'Europe/Kiev': 'UA',
+    'Europe/Kirov': 'RU',
+    'Europe/Kyiv': 'UA',
+    'Europe/Lisbon': 'PT',
+    'Europe/Ljubljana': 'SI',
+    'Europe/London': 'GB',
+    'Europe/Luxembourg': 'LU',
+    'Europe/Madrid': 'ES',
+    'Europe/Malta': 'MT',
+    'Europe/Mariehamn': 'AX',
+    'Europe/Minsk': 'BY',
+    'Europe/Monaco': 'MC',
+    'Europe/Moscow': 'RU',
+    'Europe/Nicosia': 'CY',
+    'Europe/Oslo': 'NO',
+    'Europe/Paris': 'FR',
+    'Europe/Podgorica': 'ME',
+    'Europe/Prague': 'CZ',
+    'Europe/Riga': 'LV',
+    'Europe/Rome': 'IT',
+    'Europe/Samara': 'RU',
+    'Europe/San_Marino': 'SM',
+    'Europe/Sarajevo': 'BA',
+    'Europe/Saratov': 'RU',
+    'Europe/Simferopol': 'UA',
+    'Europe/Skopje': 'MK',
+    'Europe/Sofia': 'BG',
+    'Europe/Stockholm': 'SE',
+    'Europe/Tallinn': 'EE',
+    'Europe/Tirane': 'AL',
+    'Europe/Tiraspol': 'MD',
+    'Europe/Ulyanovsk': 'RU',
+    'Europe/Uzhgorod': 'UA',
+    'Europe/Vaduz': 'LI',
+    'Europe/Vatican': 'VA',
+    'Europe/Vienna': 'AT',
+    'Europe/Vilnius': 'LT',
+    'Europe/Volgograd': 'RU',
+    'Europe/Warsaw': 'PL',
+    'Europe/Zagreb': 'HR',
+    'Europe/Zaporozhye': 'UA',
+    'Europe/Zurich': 'CH',
+    'GB': 'GB',
+    'GB-Eire': 'GB',
+    'Hongkong': 'HK',
+    'Iceland': 'IS',
+    'Indian/Antananarivo': 'MG',
+    'Indian/Chagos': 'IO',
+    'Indian/Christmas': 'CX',
+    'Indian/Cocos': 'CC',
+    'Indian/Comoro': 'KM',
+    'Indian/Kerguelen': 'TF',
+    'Indian/Mahe': 'SC',
+    'Indian/Maldives': 'MV',
+    'Indian/Mauritius': 'MU',
+    'Indian/Mayotte': 'YT',
+    'Indian/Reunion': 'RE',
+    'Iran': 'IR',
+    'Israel': 'IL',
+    'Jamaica': 'JM',
+    'Japan': 'JP',
+    'Kwajalein': 'MH',
+    'Libya': 'LY',
+    'Mexico/BajaNorte': 'MX',
+    'Mexico/BajaSur': 'MX',
+    'Mexico/General': 'MX',
+    'NZ': 'NZ',
+    'NZ-CHAT': 'NZ',
+    'Navajo': 'US',
+    'PRC': 'CN',
+    'Pacific/Apia': 'WS',
+    'Pacific/Auckland': 'NZ',
+    'Pacific/Bougainville': 'PG',
+    'Pacific/Chatham': 'NZ',
+    'Pacific/Chuuk': 'FM',
+    'Pacific/Easter': 'CL',
+    'Pacific/Efate': 'VU',
+    'Pacific/Enderbury': 'KI',
+    'Pacific/Fakaofo': 'TK',
+    'Pacific/Fiji': 'FJ',
+    'Pacific/Funafuti': 'TV',
+    'Pacific/Galapagos': 'EC',
+    'Pacific/Gambier': 'PF',
+    'Pacific/Guadalcanal': 'SB',
+    'Pacific/Guam': 'GU',
+    'Pacific/Honolulu': 'US',
+    'Pacific/Johnston': 'UM',
+    'Pacific/Kanton': 'KI',
+    'Pacific/Kiritimati': 'KI',
+    'Pacific/Kosrae': 'FM',
+    'Pacific/Kwajalein': 'MH',
+    'Pacific/Majuro': 'MH',
+    'Pacific/Marquesas': 'PF',
+    'Pacific/Midway': 'UM',
+    'Pacific/Nauru': 'NR',
+    'Pacific/Niue': 'NU',
+    'Pacific/Norfolk': 'NF',
+    'Pacific/Noumea': 'NC',
+    'Pacific/Pago_Pago': 'AS',
+    'Pacific/Palau': 'PW',
+    'Pacific/Pitcairn': 'PN',
+    'Pacific/Pohnpei': 'FM',
+    'Pacific/Ponape': 'FM',
+    'Pacific/Port_Moresby': 'PG',
+    'Pacific/Rarotonga': 'CK',
+    'Pacific/Saipan': 'MP',
+    'Pacific/Samoa': 'AS',
+    'Pacific/Tahiti': 'PF',
+    'Pacific/Tarawa': 'KI',
+    'Pacific/Tongatapu': 'TO',
+    'Pacific/Truk': 'FM',
+    'Pacific/Wake': 'UM',
+    'Pacific/Wallis': 'WF',
+    'Pacific/Yap': 'FM',
+    'Poland': 'PL',
+    'Portugal': 'PT',
+    'ROC': 'TW',
+    'ROK': 'KR',
+    'Singapore': 'SG',
+    'Turkey': 'TR',
+    'US/Alaska': 'US',
+    'US/Aleutian': 'US',
+    'US/Arizona': 'US',
+    'US/Central': 'US',
+    'US/East-Indiana': 'US',
+    'US/Eastern': 'US',
+    'US/Hawaii': 'US',
+    'US/Indiana-Starke': 'US',
+    'US/Michigan': 'US',
+    'US/Mountain': 'US',
+    'US/Pacific': 'US',
+    'US/Samoa': 'AS',
+    'W-SU': 'RU',
+}
@@ -346,9 +346,9 @@
  .and-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 22px; align-items: start; }
  .and-col { display: grid; gap: 22px; align-content: start; }
  .rep-item .s { white-space: normal; }
-  #bugDlg, #repDlg, #titleDlg, #wiDlg, #pwDlg, #apkAltDlg, #aboutDlg { background: #1e2329; color: var(--text); border: 1px solid rgba(255,255,255,.1); border-radius: 4px;
+  #bugDlg, #repDlg, #titleDlg, #wiDlg, #pwDlg, #apkAltDlg, #aboutDlg, #modDlg { background: #1e2329; color: var(--text); border: 1px solid rgba(255,255,255,.1); border-radius: 4px;
            padding: 22px; width: min(560px, 92vw); box-shadow: 0 20px 60px rgba(0,0,0,.6); }
-  #bugDlg::backdrop, #repDlg::backdrop, #titleDlg::backdrop, #wiDlg::backdrop, #pwDlg::backdrop, #apkAltDlg::backdrop, #aboutDlg::backdrop { background: rgba(0,0,0,.55); }
+  #bugDlg::backdrop, #repDlg::backdrop, #titleDlg::backdrop, #wiDlg::backdrop, #pwDlg::backdrop, #apkAltDlg::backdrop, #aboutDlg::backdrop, #modDlg::backdrop { background: rgba(0,0,0,.55); }
  #bugDlg { width: min(640px, calc(100vw - 40px)); }
  #bugForm label.field { display: block; font-size: 12.5px; color: var(--muted); margin-top: 10px; }
  #bugForm label.field input, #bugForm label.field textarea, #bugForm select { margin-top: 5px; }
@@ -357,7 +357,7 @@
  #bugForm .popt { margin: 14px 0 0; }
  #bugForm .sentlog { max-height: 200px; }
  #bugWarn { color: var(--muted); font-size: 12.5px; line-height: 1.45; margin: 12px 0 0; }
-  #bugDlg h2, #repDlg h2, #titleDlg h2, #wiDlg h2, #pwDlg h2, #apkAltDlg h2, #aboutDlg h2 { margin: 0 0 14px; font-size: 15px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--bright); }
+  #bugDlg h2, #repDlg h2, #titleDlg h2, #wiDlg h2, #pwDlg h2, #apkAltDlg h2, #aboutDlg h2, #modDlg h2 { margin: 0 0 14px; font-size: 15px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--bright); }
  .about-text { max-height: 55vh; overflow: auto; }
  .about-text pre { white-space: pre-wrap; font-size: 12px; color: var(--muted); }
  .about-text summary { cursor: pointer; margin: 8px 0; }
@@ -455,6 +455,12 @@
             backdrop-filter: none; background: rgb(23, 29, 37); }
    .brand svg { width: 26px; height: 26px; }
    header .chip { height: 30px; padding: 0 10px; }
+    /* Let connection text yield before battery and header actions. */
+    .hdr-end { flex: 1; gap: 6px; }
+    .hdr-end .pill, .hdr-end .devsel { min-width: 0; }
+    .hdr-end .pill { padding: 0 8px; gap: 6px; }
+    .hdr-end .pill > span:last-child { min-width: 0; overflow: hidden; text-overflow: ellipsis; }
+    #reportBtn, #refreshAll { width: 38px; padding: 0; justify-content: center; }
    nav { position: fixed; left: 0; right: 0; bottom: 0; z-index: 25; gap: 0;
          height: calc(58px + env(safe-area-inset-bottom)); padding: 0 env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
          background: rgba(23,29,37,.97); backdrop-filter: blur(12px); box-shadow: 0 -1px 0 rgba(255,255,255,.07); }
@@ -481,6 +487,9 @@
    .and-btns { padding-left: 0; }
    .banner { flex-wrap: wrap; }
    .banner .s { white-space: normal; }
+    /* Reserve the message row; connection actions wrap below it. */
+    #offline { align-items: flex-start; }
+    #offline > .grow { flex: 1 0 calc(100% - 36px); overflow-wrap: anywhere; }
    button { height: 38px; }
    button.small { height: 32px; }
    .actions button { height: 46px; }
@@ -642,6 +651,7 @@
  @media(prefers-reduced-motion:reduce) { html { scroll-behavior:auto; } .store-card, .source-toggle::after { transition:none; } .store-skeleton { animation:none; } }

 </style>
+<link rel="stylesheet" href="/control-center.css">
 </head>
 <body>
 <header>
@@ -660,6 +670,7 @@
    <a href="#android" title="Android apps and their display (3)"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><rect x="5" y="9" width="14" height="11" rx="2"/><path d="M8 9a4 4 0 0 1 8 0M8 5l1.5 2M16 5l-1.5 2M9.5 13h.01M14.5 13h.01"/></svg>Android<kbd>3</kbd></a>
    <a href="#tools" title="Files, clipboard, Linux apps, remote and power (4)"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M14.7 6.3a4 4 0 0 0-5.2 5.2L3.5 17.5a2.1 2.1 0 0 0 3 3l6-6a4 4 0 0 0 5.2-5.2l-2.5 2.5-2.5-2.5z"/></svg>Tools<kbd>4</kbd></a>
    <a href="#devices" class="desk-only" title="Headsets, their addresses and the connection (5)"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M5 12.5a10 10 0 0 1 14 0M8.5 16a5 5 0 0 1 7 0"/><circle cx="12" cy="19.5" r="1"/><path d="M2 9a15 15 0 0 1 20 0"/></svg>Devices<kbd>5</kbd></a>
+    <a href="#control" title="Search controls, settings and live metrics (6)"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.7" stroke-linecap="round" aria-hidden="true"><path d="M3 6h18M3 12h18M3 18h18M8 3v6M16 9v6M10 15v6"/></svg>Control<kbd>6</kbd></a>
  </nav>
  <div class="hdr-end">
  <button class="pill" id="conn" role="status" aria-live="polite" title="Connection details"><span class="dot wait"></span><span class="pt"><b>Connecting…</b><span></span></span></button>
@@ -684,7 +695,7 @@
  </div>
  <div class="notice" id="privacyNotice" hidden>
    <div class="grow">Frame Control sends anonymous usage statistics: that it was installed and opened, its version,
-      your operating system, which tabs you use, whether installs on the Frame worked, and how many headsets you use
+      your operating system, your country (from the computer's time zone setting), which tabs you use, whether installs on the Frame worked, and how many headsets you use
      (a one-way hash of each headset's machine ID, the same on every computer, so they're counted once). Never file names, paths,
      addresses or anything you've typed, and it isn't linked to you. You can also share whether Android apps
      worked and the details of errors, which helps fix problems faster.</div>
@@ -713,6 +724,42 @@
    <button class="action small" id="offRetry">Retry now</button>
  </div>

+  <div class="page cc" data-page="control" id="controlCenter">
+    <section class="cc-hero" aria-labelledby="ccTitle">
+      <div><div class="cc-eyebrow">Your Frame, at a glance</div><h1 id="ccTitle">Control Center</h1><p>Everything you can see, change and configure. Find a setting, check your headset, or pick up where you left off.</p></div>
+      <svg class="cc-hero-mark" viewBox="0 0 120 84" fill="none" aria-hidden="true"><path d="M14 28C14 15 106 15 106 28v23c0 18-33 23-39 11h-14c-6 12-39 7-39-11z" stroke="currentColor" stroke-width="1.5"/><path d="M26 32c0-6 25-6 25 0v15c0 11-25 11-25 0zM69 32c0-6 25-6 25 0v15c0 11-25 11-25 0z" stroke="currentColor" stroke-opacity=".4"/><path d="M7 33h7m92 0h7M48 18l4-7h16l4 7" stroke="currentColor" stroke-width="1.5"/><circle cx="60" cy="38" r="2" fill="currentColor"/></svg>
+    </section>
+    <section aria-labelledby="ccDeviceName">
+      <div class="cc-topline"><h2 id="ccDeviceName">Steam Frame</h2><span class="cc-sample" id="ccSampleState" role="status">Connect your Frame to read live metrics</span><button class="small" id="ccRefresh">Refresh metrics</button></div>
+      <div class="cc-summary">
+        <div class="cc-metric"><span>Battery</span><strong data-cc-metric="battery">Unavailable</strong><small data-cc-metric="batteryDetail">Connect to read charge and power</small></div>
+        <div class="cc-metric"><span>Storage free</span><strong data-cc-metric="storage">Unavailable</strong><small data-cc-metric="storageDetail">User storage unavailable</small></div>
+        <div class="cc-metric"><span>Memory used</span><strong data-cc-metric="memory">Unavailable</strong><small data-cc-metric="memoryDetail">Memory sensor unavailable</small></div>
+        <div class="cc-metric"><span>Compositor FPS</span><strong data-cc-metric="fps">Unavailable</strong><small data-cc-metric="fpsDetail">Compositor FPS · not game FPS</small></div>
+      </div>
+      <details class="cc-device-facts"><summary id="ccBuild">System information unavailable</summary>
+        <dl class="cc-readings">
+          <div><dt>Wi-Fi network</dt><dd data-cc-metric="wifi">Unavailable</dd></div><div><dt>Wi-Fi signal</dt><dd data-cc-metric="signal">Unavailable</dd></div>
+          <div><dt>IP address</dt><dd data-cc-metric="ip">Unavailable</dd></div><div><dt>Uptime</dt><dd data-cc-metric="uptime">Unavailable</dd></div>
+          <div><dt>Battery power · signed</dt><dd data-cc-metric="power">Unavailable</dd></div><div><dt>Charger</dt><dd data-cc-metric="charger">Unavailable</dd></div>
+          <div><dt>Battery temperature</dt><dd data-cc-metric="batteryTemp">Unavailable</dd></div><div><dt>Battery health</dt><dd data-cc-metric="batteryHealth">Unavailable</dd></div>
+          <div><dt>Battery estimate</dt><dd data-cc-metric="estimate">Unavailable</dd></div>
+        </dl><p class="cc-note">Positive battery watts mean charging; negative means discharge. Estimates are reported by the battery and may be unavailable.</p>
+        <div class="cc-services" id="ccServices"></div>
+      </details>
+    </section>
+    <div class="cc-workspace">
+      <aside class="cc-sidebar" aria-label="Control Center categories"><p>Browse controls</p><div class="cc-categories" id="ccCategories"></div>
+        <div class="cc-status"><div><i class="dot" id="ccStatusDot"></i><span id="ccStatusLabel">No live sample</span></div><p id="ccStatusNote">Read-only status over SSH. Controls run only when you use them.</p></div>
+      </aside>
+      <div>
+        <div class="cc-search-row"><div class="cc-search"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.7" aria-hidden="true"><circle cx="10" cy="10" r="6.5"/><path d="m15 15 6 6"/></svg><input id="ccSearch" type="search" placeholder="Search settings, controls and guides…" aria-label="Search Control Center" autocomplete="off"><button id="ccClear" type="button" aria-label="Clear search" hidden>×</button></div><span class="cc-results" id="ccResultCount" role="status" aria-live="polite"></span></div>
+        <div class="cc-cards" id="ccCards"></div>
+        <div class="cc-empty" id="ccEmpty" hidden><h2>No matching controls</h2><p>Try a different word or browse all categories.</p><button class="small" id="ccResetFilter">Reset search &amp; category</button></div>
+      </div>
+    </div>
+  </div>
+
  <div class="page on" data-page="home">
  <div class="grid-top" id="view">
    <section class="panel">
@@ -959,6 +1006,12 @@
          library under its own name and opens in its own panel. Test launches it and records
          whether it stays up; Report records how it worked for you.</div>
      </div>
+      <section class="panel" id="installQueue" hidden>
+        <div class="shelf-head"><h2>Install queue</h2><span class="count" id="queueCount"></span></div>
+        <div class="list" id="queueList"></div>
+        <div class="hint">Games from the store, your Quest and your Meta library install one after another.
+          Remove takes a game out before it starts.</div>
+      </section>
      <section class="panel" id="quest">
        <div class="shelf-head"><h2>Import from my Quest</h2><span class="count" id="questCount"></span><span class="spacer"></span>
          <button class="small" id="questScan" title="Look for a Meta Quest plugged into this computer by USB">Look for my Quest</button></div>
@@ -1198,7 +1251,7 @@
    <section class="panel" id="privacy">
      <div class="shelf-head"><h2>Privacy &amp; updates</h2><span class="spacer"></span><span class="sub" id="appVersion"></span></div>
      <label class="popt"><input type="checkbox" id="tUsage"><b>Anonymous usage statistics</b>
-        <span class="sub">Installs, opens, version, operating system, tabs used, and whether installs on the Frame
+        <span class="sub">Installs, opens, version, operating system, country (from the time zone setting, to see roughly where it's used), tabs used, and whether installs on the Frame
          worked (with an error category, never the message). F-Droid package names only. Each headset's SteamOS
          build, a one-way hash of its machine ID (to count headsets, not just installs), and how many you've set up.</span></label>
      <label class="popt"><input type="checkbox" id="tCompat"><b>Share compatibility results</b>
@@ -1279,6 +1332,21 @@
  <div class="actions"><button id="apkAltClose">Close</button></div>
 </dialog>

+<dialog id="modDlg" aria-labelledby="modTitle">
+  <h2 id="modTitle">Play in VR with UEVR</h2>
+  <p id="modState" class="sub"></p>
+  <p class="sub">UEVR by praydog turns many Unreal Engine games into VR games. Frame Control downloads
+    the official UEVR 1.05 release and python.org's Windows Python, which it uses to load UEVR into the game
+    (about 20 MB), checks their hashes, and keeps them in this game's Proton prefix, not the game's folder.
+    Remove takes them out again.</p>
+  <p class="sub">Tested on the Frame with one game so far. Whether a game looks and plays right in VR varies;
+    UEVR's own menu in the headset has the per-game settings.</p>
+  <div class="row rep-actions"><span class="sub" id="modMsg"></span><span class="spacer"></span>
+    <button type="button" class="small" id="modClose">Close</button>
+    <button type="button" class="small" id="modRemove" hidden>Remove UEVR</button>
+    <button type="button" class="action small" id="modInstall" hidden>Install UEVR</button>
+    <button type="button" class="play small" id="modStart" hidden>▶ PLAY IN VR</button></div>
+</dialog>
 <dialog id="aboutDlg" aria-labelledby="aboutTitle">
  <h2 id="aboutTitle">About and licences</h2>
  <p>Frame Control is MIT-licensed. It ships other people's software, each under its own licence: the notices and
@@ -1444,7 +1512,7 @@ const HINTS = {
  flat: "The app panel in use in the headset, flat and still: it doesn't move as the wearer looks around. Pick another panel to watch it. Control lets you tap or click right where you want on it.",
 };
 const SOURCE_LABEL = { steamvr: "Headset view", gamescope: "Desktop panel", panel: "Desktop", shot: "Screenshot" };
-let state = null, view = "headset", eye = "left", live = false, liveTimer = null, volTimer = null;
+let state = null, stateReceivedAt = null, stateRead = {valid: false, error: null}, view = "headset", eye = "left", live = false, liveTimer = null, volTimer = null;
 let lastImg = null, lastSource = null, lastShot = null, viewGen = 0;

 function esc(s) { return String(s ?? "").replace(/[&<>"']/g, c => ({"&":"&amp;","<":"&lt;",">":"&gt;",'"':"&quot;","'":"&#39;"}[c])); }
@@ -1482,6 +1550,7 @@ $("bottombar").onclick = () => {
 const HOST = { computer: "computer" };
 function applyHostWording(h) {
  Object.assign(HOST, h);
+  window.frameControlCenter?.host(h);
  // The iPhone app: the server runs on the Frame, and saving goes to the phone's Photos.
  document.body.classList.toggle("mobile", !!h.mobile);
  $("shotsFolder").hidden = !!h.mobile;
@@ -1514,6 +1583,13 @@ let devGen = 0;
 const HEADSET_FREE = /^\/api\/(devices|connection|host|job|titles\/job|webinstall\/job|apk-versions|android\/(catalog|reports)|steam\/search)\b/;
 async function api(path, body, device = window.connDevice) {
  const gen = devGen;
+  const checkGeneration = () => {
+    if (gen !== devGen && !HEADSET_FREE.test(path)) {
+      const err = new Error("Switched headsets");
+      err.offline = err.stale = true;  // leave the panel for the new headset's answer
+      throw err;
+    }
+  };
  // Changes name the headset the page was showing, so the server refuses one meant
  // for a headset it has since switched away from.
  const dev = device ? { "X-Frame-Device": device } : {};
@@ -1522,15 +1598,12 @@ async function api(path, body, device = window.connDevice) {
  let r;
  try { r = await fetch(path, opts); }
  catch {
+    checkGeneration();  // a late transport failure belongs to the old headset too
    throw new Error(window.frameApp?.platform === "ios" ? "Lost the connection to the Frame. The app reconnects on its own."
                                                         : "Frame Control's local server isn't running. Restart the app (Frame → Restart Server).");
  }
  const data = await r.json().catch(() => ({ error: `HTTP ${r.status}` }));
-  if (gen !== devGen && !HEADSET_FREE.test(path)) {
-    const err = new Error("Switched headsets");
-    err.offline = err.stale = true;  // failed() leaves the panel alone: the new headset's answer fills it
-    throw err;
-  }
+  checkGeneration();
  if (!r.ok) {
    const err = new Error(data.error || `HTTP ${r.status}`);
    err.offline = !!data.offline;
@@ -1569,6 +1642,7 @@ let online = null;
 function setOnline(ok, why) {
  const was = online;
  online = ok;
+  window.frameControlCenter?.connection(ok);
  $("offline").hidden = ok;
  if (!ok) {
    $("offMsg").textContent = why || "Can't reach the Frame";
@@ -1600,11 +1674,15 @@ function refresh() {
  refreshing = (async () => {
    try {
      state = await api("/api/status");
+      stateReceivedAt = Date.now();
+      stateRead = {valid: true, error: null};
      render(state);
      setConn(true, state.hostname);
      setOnline(true);
    } catch (e) {
      renderPerformance(null);
+      if (!e.stale) stateRead = {valid: false, error: e};
+      window.frameControlCenter?.unavailable(e);
      if (!e.offline) { setConn(false, "Error"); log("Status failed: " + e.message, "e"); }
      if (!state) ["games", "flatpaks"].forEach(id => failed($(id), e));
    } finally {
@@ -1614,6 +1692,12 @@ function refresh() {
  })();
  return refreshing;
 }
+async function refreshAfterAudio() {
+  // A request already underway may contain pre-command audio. Preserve normal
+  // poll deduplication, but drain it before requesting the command's readback.
+  if (refreshing) await refreshing;
+  return refresh();
+}

 // ---- our VR HUD and optional third-party catalogue ----
 function renderPerformance(s) {
@@ -1791,6 +1875,7 @@ function battery(b, power) {

 function render(s) {
  renderPerformance(s);
+  window.frameControlCenter?.status(s, stateReceivedAt, stateRead);
  battery(s.battery, s.power);
  $("devName").textContent = `${s.hostname} · ${s.ip ?? "no IP"}`;
  $("updated").textContent = new Date(s.time * 1000).toLocaleTimeString();
@@ -2623,32 +2708,65 @@ document.body.addEventListener("click", async (e) => {
 // Installs run as server jobs: start one, then poll until it's done. The
 // bottom bar counts what's running; `installing` keeps re-rendered lists from
 // offering Install again for something already on its way.
-const installing = new Set();
+// Android installs wait their turn in the server's install queue (queue_job in
+// server.py); `queued` holds the ones still waiting.
+const installing = new Set(), queued = new Set();
 let jobsRunning = 0;
 function showJobs() {
+  const waiting = queued.size, running = jobsRunning - waiting;
  $("jobs").hidden = !jobsRunning;
-  $("jobsText").textContent = `${jobsRunning} install${jobsRunning === 1 ? "" : "s"} running`;
+  $("jobsText").textContent = [running ? `${running} install${running === 1 ? "" : "s"} running` : "",
+                               waiting ? `${waiting} queued` : ""].filter(Boolean).join(", ");
 }
 async function runJob(label, key, start, onProgress = () => {}) {
  installing.add(key); jobsRunning++; showJobs();
-  log(label + "…");
  try {
-    const { job } = await start();
+    const started = await start();
+    const { job } = started;
+    log(started.queued ? started.message : label + "…");
+    if (started.queued) { queued.add(key); showJobs(); }
+    if (started.queued != null) loadQueue();
    for (let misses = 0; ;) {
      await new Promise(ok => setTimeout(ok, 1500));
      let j;
      try { j = await api(`/api/job?id=${encodeURIComponent(job)}`); misses = 0; }
      catch (e) { if (++misses >= 20 || /no such job/.test(e.message)) throw e; continue; }
+      if (j.queued !== queued.has(key)) { j.queued ? queued.add(key) : queued.delete(key); showJobs(); }
      onProgress(j);
      if (!j.done) continue;
+      if (j.cancelled) { log(`${label}: removed from the install queue`); return null; }
      if (j.error) throw new Error(j.error);
      log(j.message, "ok"); toast(j.message);
      return j.result || {};
    }
  } catch (e) {
    log(`${label} failed: ${e.message}`, "e"); toast(`${label} failed: ${e.message}`, true);
-  } finally { installing.delete(key); jobsRunning--; showJobs(); }
+  } finally { installing.delete(key); queued.delete(key); jobsRunning--; showJobs(); }
 }
+// The install queue as the server has it: also what an earlier visit to this page queued.
+let queueTimer;
+async function loadQueue() {
+  clearTimeout(queueTimer);
+  let jobs;
+  try { ({ jobs } = await api("/api/queue")); } catch { jobs = null; }
+  if (jobs) {
+    $("installQueue").hidden = !jobs.length;
+    $("queueCount").textContent = jobs.length ? `${jobs.length}` : "";
+    $("queueList").innerHTML = jobs.map(j => `<div class="item"><div class="grow"><div class="t">${esc(j.label)}</div>
+        <div class="s">${esc(j.queued ? j.stage || "Queued" : `${j.stage || "Starting"}${j.percent != null ? ` · ${Math.round(j.percent)}%` : ""}`)}</div></div>
+        ${j.queued ? `<button class="small" data-unqueue="${esc(j.job)}">Remove</button>` : `<span class="tag">Installing</span>`}</div>`).join("");
+  }
+  if (!jobs || jobs.length) queueTimer = setTimeout(loadQueue, 2000);
+}
+$("queueList").addEventListener("click", async e => {
+  const b = e.target.closest("[data-unqueue]");
+  if (!b) return;
+  b.disabled = true;
+  try { const d = await api("/api/queue", { action: "remove", job: b.dataset.unqueue }); toast(d.message); }
+  catch (err) { toast(err.message, true); }
+  loadQueue();
+});
+loadQueue();
 const POWER = { suspend: ["Put the Frame to sleep?", "Sleep"], reboot: ["Restart the Frame?", "Restart"],
                poweroff: ["Shut the Frame down?", "Shut down"] };
 function askPower(what) {
@@ -3114,7 +3232,8 @@ function gameButtons(id, name, free) {
  const open = `<button class="small" data-gm="store" data-id="${id}" data-name="${esc(name)}" title="Open the store page in the headset">Store on Frame</button>`;
  if (d && d.appid === id) return `<span class="tag">${d.paused ? "Paused" : "Downloading"} ${d.percent ?? 0}%</span>`;
  if (g && g.installed) return `<span class="tag">Installed</span>` +
-    `<button class="play small" data-launch="${id}" data-name="${esc(name)}">▶ PLAY</button>`;
+    `<button class="play small" data-launch="${id}" data-name="${esc(name)}">▶ PLAY</button>` +
+    `<button class="small" data-mod="${id}" data-name="${esc(name)}" title="Flat-to-VR mod for Unreal Engine games">VR mod</button>`;
  if (g) return `<button class="action small" data-gm="install" data-id="${id}" data-name="${esc(name)}">Install on Frame</button>`;
  return `<a href="${storeUrl}" target="_blank" rel="noopener" title="Opens in your browser">${free ? "Get" : "Buy"} on Steam ↗</a>${open}`;
 }
@@ -3186,6 +3305,45 @@ document.body.addEventListener("click", async e => {
 });
 loadOwned();

+// ---- VR mod (UEVR) for one installed game; frame_mods.py does the work ----
+const mod = { appid: null, name: "" };
+function showMod(st, note) {
+  const busy = note === null;
+  $("modTitle").textContent = `${mod.name} in VR`;
+  $("modState").textContent = !st ? "Checking the game on the Frame…"
+    : !st.eligible ? "This doesn't look like an Unreal Engine game, so UEVR can't run it."
+    : !st.prefix ? "Play the game once first, so Steam sets up its Proton prefix."
+    : st.injected ? "UEVR is running in the game now. Put on the headset."
+    : st.installed ? `UEVR ${st.version} is installed for this game.${st.running ? " The game is running; Play in VR adds UEVR to it." : ""}`
+    : `UEVR ${st.version} isn't installed for this game yet.`;
+  $("modMsg").textContent = busy ? "Working… this can take a few minutes" : note || "";
+  const ok = st && st.eligible && st.prefix;
+  $("modInstall").hidden = !ok || st.installed; $("modStart").hidden = !ok || !st.installed || st.injected;
+  $("modRemove").hidden = !st || !st.installed;
+  for (const b of ["modInstall", "modStart", "modRemove"]) $(b).disabled = busy || (b === "modRemove" && st && st.running);
+}
+async function modAction(action, label) {
+  const appid = mod.appid;
+  showMod(mod.st, null);
+  const res = await act(`${label} for ${mod.name}`, () => api("/api/mods", { action, appid }));
+  if (appid !== mod.appid) return;
+  try { mod.st = await api("/api/mods", { action: "status", appid }); } catch {}
+  showMod(mod.st, res ? res.message : "Didn't work; the log has the reason");
+}
+document.body.addEventListener("click", async e => {
+  const b = e.target.closest("[data-mod]"); if (!b) return;
+  mod.appid = b.dataset.mod; mod.name = b.dataset.name; mod.st = null;
+  showMod(null, "");
+  $("modDlg").showModal();
+  const appid = mod.appid;
+  try { const st = await api("/api/mods", { action: "status", appid }); if (appid === mod.appid) { mod.st = st; showMod(st, ""); } }
+  catch (err) { if (appid === mod.appid) $("modState").textContent = err.message; }
+});
+$("modInstall").onclick = () => modAction("install", "Install UEVR");
+$("modStart").onclick = () => modAction("start", "Start UEVR");
+$("modRemove").onclick = () => modAction("uninstall", "Remove UEVR");
+$("modClose").onclick = () => $("modDlg").close();
+
 // ---- Discover apps ----
 const sourceState = { vr: null, installable: false, source: "", apps: [], sources: [], request: 0, detail: null, detailRequest: 0, jobs: new Map() };
 const storeName = s => String(s || "").replace(/ \(demo\)$/i, "");
@@ -3317,6 +3475,7 @@ async function installStoreApp() {
  if(existing&&!existing.done)return;
  const state={stage:'Downloading',percent:null,done:false};sourceState.jobs.set(key,state);updateInstall();
  const result=await runJob(`Install ${o.name}`,key,()=>api('/api/sources/install',{source:o.source,id:o.id,version_code:o.version_code??null}),j=>{Object.assign(state,{stage:j.stage||'Downloading',percent:j.percent??null,error:j.error});updateInstall();});
+  if(result===null){sourceState.jobs.delete(key);updateInstall();return;}  // removed from the install queue
  Object.assign(state,{done:true,result,error:result?null:state.error||"We couldn't finish the installation. Try again."});updateInstall();
  if(result)loadAndroid();
 }
@@ -3346,7 +3505,19 @@ async function addSource(body) {
 $("addSource").onsubmit=e=>{e.preventDefault();const f=new FormData(e.target);addSource({action:'add',url:f.get('url'),fingerprint:f.get('fingerprint')});};
 document.querySelectorAll('[data-close]').forEach(b=>b.onclick=()=>$(b.dataset.close).close());
 $('appDetail').addEventListener('close',()=>{sourceState.detailRequest++;});
-document.querySelectorAll('[data-store-tab]').forEach(b=>b.onclick=()=>{const browse=b.dataset.storeTab==='browse';$('appStore').hidden=!browse;$('androidLibrary').hidden=browse;$('repNew').hidden=browse;$('sourcesOpen').hidden=!browse;document.querySelectorAll('[data-store-tab]').forEach(t=>{t.classList.toggle('on',t===b);t.setAttribute('aria-pressed',t===b);});if(!browse)loadAndroid();});
+function showAndroidTab(tab) {
+  const browse = tab === 'browse';
+  $('appStore').hidden = !browse; $('androidLibrary').hidden = browse;
+  $('repNew').hidden = browse; $('sourcesOpen').hidden = !browse;
+  document.querySelectorAll('[data-store-tab]').forEach(button => {
+    const selected = button.dataset.storeTab === tab;
+    button.classList.toggle('on', selected); button.setAttribute('aria-pressed', String(selected));
+  });
+}
+document.querySelectorAll('[data-store-tab]').forEach(button => button.onclick = () => {
+  showAndroidTab(button.dataset.storeTab);
+  if (button.dataset.storeTab === 'library') loadAndroid();
+});
 loadSources().then(()=>searchSources());

 // ---- Android apps (own Lepton instance each) + catalogue ----
@@ -3408,7 +3579,7 @@ async function loadQuest() {
    if (a.meta) bits.push("Meta app: needs Meta's services");
    return `<div class="item"><div class="grow"><div class="t">${esc(a.package)}</div><div class="s">${esc(bits.join(" · "))}</div></div>
      ${installed.has(a.package) ? `<span class="tag">On the Frame</span>` : ""}
-      <button class="small" data-quest-import="${esc(a.package)}"${installing.has("quest:" + a.package) ? " disabled" : ""}>${installed.has(a.package) ? "Import again" : "Import"}</button></div>`;
+      <button class="small" data-quest-import="${esc(a.package)}"${installing.has("quest:" + a.package) ? " disabled" : ""}>${queued.has("quest:" + a.package) ? "Queued" : installed.has(a.package) ? "Import again" : "Import"}</button></div>`;
  }).join("") : `<div class="sub">No games or apps you installed are on this Quest.</div>`;
 }
 $("questScan").onclick = loadQuest;
@@ -3417,14 +3588,16 @@ $("questApps").addEventListener("click", e => {
  if (!b) return;
  const pkg = b.dataset.questImport, key = "quest:" + pkg;
  if (installing.has(key)) return;
-  b.disabled = true;
+  b.disabled = true; b.textContent = "Queued";
  const bar = $("questProgress");
-  bar.hidden = false; bar.value = 0;
+  // Several can be queued: the bar and the status line follow whichever is installing.
  runJob(`Import ${pkg} from Quest`, key,
         () => api("/api/quest", { action: "import", package: pkg, serial: quest.serial, data: $("questData").checked, allowDowngrade: $("questOlder").checked }),
-         j => { if (j.stage) $("questState").textContent = `${pkg}: ${j.stage}`; if (j.percent != null) bar.value = j.percent; })
-    .then(r => { bar.hidden = true; if (r && r.app) { $("questState").textContent = r.message || `Imported ${pkg}`; loadAndroid(); }
-                  else { b.disabled = false; $("questState").textContent = `${pkg} wasn't imported; the reason is in the message log below.`; } });
+         j => { if (j.queued || j.done) return; b.textContent = "Importing…"; bar.hidden = false; bar.dataset.owner = key;
+                if (j.stage) $("questState").textContent = `${pkg}: ${j.stage}`; bar.value = j.percent ?? 0; })
+    .then(r => { if (bar.dataset.owner === key) bar.hidden = true; if (r && r.app) { b.textContent = "Imported"; $("questState").textContent = r.message || `Imported ${pkg}`; loadAndroid(); }
+                  else { b.disabled = false; b.textContent = "Import";
+                         if (r !== null) $("questState").textContent = `${pkg} wasn't imported; the reason is in the message log below.`; } });
 });

 // ---- My Meta library, Experimental (frame_meta.py): the person's own token, games they own ----
@@ -3473,11 +3646,12 @@ function renderMetaApps() {
    const verdict = v ? `<div class="s ${v[0]}" title="${esc((a.verdict.lines || []).join("\n"))}">Community: ${v[1]}</div>` : "";
    const r = metaLib.results.get(a.package);
    const result = r ? `<div class="s">${esc(r)}</div>` : "";
-    const busy = installing.has("meta:" + a.id) ? " disabled" : "";
+    const busy = installing.has("meta:" + a.id) ? " disabled" : "", waits = queued.has("meta:" + a.id);
    const on = installed.has(a.package);
    const can = a.package && !a.problem;
    return `<div class="item"><div class="grow"><div class="t">${esc(a.title)}</div><div class="s" title="${esc(line)}">${esc(line)}</div>${problem}${skipped}${verdict}${result}</div>
      ${on ? `<span class="tag">On the Frame</span>` : ""}
+      ${waits ? `<span class="tag">Queued</span>` : ""}
      ${can ? `<button class="small" data-meta-install="${esc(a.id)}"${busy}>${on ? "Install again" : "Install"}</button>
      <button class="small" data-meta-install="${esc(a.id)}" data-test="1"${busy} title="Install, start it, watch it for about 30 s and record whether it ran">Install and test</button>` : ""}
      ${on ? `<button class="small" data-meta-test="${esc(a.package)}"${busy} title="Start it again, watch it for about 30 s and record whether it ran">Test again</button>` : ""}</div>`;
@@ -3569,13 +3743,15 @@ $("metaApps").addEventListener("click", async e => {
  if (!app || installing.has("meta:" + app.id)) return;
  if (test && !confirm(`Install and test ${app.title}?\n\nFrame Control starts it in the headset (twice if it has game data to add), `
                       + "watches it for about 30 seconds and records whether it ran.")) return;
-  b.disabled = true; bar.hidden = false; bar.value = 0;
+  b.disabled = true;
+  // Several can be queued: the bar and the status line follow whichever is installing.
  const r = await runJob(`${test ? "Install and test" : "Install"} ${app.title} from Meta`, "meta:" + app.id,
    () => api("/api/meta", { action: "install", app: app.id, test, allowDowngrade: $("metaOlder").checked }),
-    j => { if (j.stage) $("metaState").textContent = `${app.title}: ${j.stage}`; if (j.percent != null) bar.value = j.percent; });
-  bar.hidden = true;
+    j => { renderMetaApps(); if (j.queued || j.done) return; bar.hidden = false; bar.dataset.owner = "meta:" + app.id;
+           if (j.stage) $("metaState").textContent = `${app.title}: ${j.stage}`; bar.value = j.percent ?? 0; });
+  if (bar.dataset.owner === "meta:" + app.id) bar.hidden = true;  // not while another install still shows its progress
  if (r && r.message) { $("metaState").textContent = r.message; metaLib.results.set(app.package, r.test ? r.test.message : r.message); }
-  else $("metaState").textContent = `${app.title} wasn't installed; the reason is in the message log below.`;
+  else if (r !== null) $("metaState").textContent = `${app.title} wasn't installed; the reason is in the message log below.`;
  loadAndroid(); renderMetaApps(); if (test) loadReports();
 });
 loadMeta();
@@ -4179,8 +4355,8 @@ $("macview").onclick = async e => {

 // ---- pages: #home, #games, #android, #tools (older section links still work) ----
 const PAGES = ["home", "games", "android", "tools"];
-const SECTION_PAGE = { view: "home", device: "home", shots: "home", library: "games", sideloaded: "games", getgames: "games",
-                       display: "android", transfer: "tools", apps: "tools", power: "tools", macview: "tools", privacy: "tools", panels: "tools" };
+const SECTION_PAGE = { view: "home", device: "home", shots: "home", vrTools: "home", comfort: "home", pad: "home", library: "games", sideloaded: "games", getgames: "games",
+                       display: "android", androidLibrary: "android", appStore: "android", transfer: "tools", media: "tools", artworkSettings: "tools", apps: "tools", power: "tools", macview: "tools", privacy: "tools", panels: "tools" };
 let page = "home";
 function showPage() {
  const id = location.hash.slice(1);
@@ -4190,6 +4366,8 @@ function showPage() {
  document.querySelectorAll(".page").forEach(p => p.classList.toggle("on", p.dataset.page === page));
  document.querySelectorAll("nav a").forEach(a => a.classList.toggle("on", a.getAttribute("href") === "#" + page));
  document.title = page === "home" ? "Frame Control" : `${page[0].toUpperCase() + page.slice(1)} · Frame Control`;
+  if (id === "display" || id === "androidLibrary") showAndroidTab("library");
+  else if (id === "appStore") showAndroidTab("browse");
  const section = !PAGES.includes(id) && id && $(id);
  if (section) section.scrollIntoView(); else window.scrollTo(0, 0);
  if (page === "tools") { loadMacView(); loadPanelSwitcher(); }
@@ -4887,8 +5065,11 @@ function onConnection(s) {
  if (link.device !== null && devId !== link.device) {
    log(`Now using ${s.device.name}`, "ok");
    state = null;
+    stateReceivedAt = null;
+    stateRead = {valid: false, error: null};
    online = null;
    devGen++;               // answers still on their way are about the other headset
+    window.frameControlCenter?.reset();
    refreshing = null;      // and the next status check must be a new one
    if (live) toggleLive(false);  // the other headset's video or captures
    clearTimeout(volTimer); volTimer = null;  // a volume change still waiting to be sent
@@ -4995,7 +5176,7 @@ function setUpActive() {
 $("connSetup").onclick = setUpActive;

 // ---- Devices tab ----
-PAGES.push("devices");
+PAGES.push("devices", "control");
 let devicesSeq = 0;  // an older answer arriving late mustn't bring back the old selection
 async function loadDevices() {
  if (!link.live) return;
@@ -5303,11 +5484,23 @@ if (window.frameApp && window.frameApp.onUseDevice) window.frameApp.onUseDevice(
 window.addEventListener("hashchange", () => { if (location.hash === "#devices") loadDevices(); });
 showPage();  // #devices is a page now
 api("/api/host").then(h => {
+  Object.assign(HOST, h);
+  window.frameControlCenter?.host(h);
  if (h.mobile) return;
  $("offSetup").hidden = false; $("offSetup").onclick = setUpActive;  // the server opens it in a terminal
  watchConnection();
 }).catch(() => watchConnection());
 </script>
 <script src="/artwork-settings.js"></script>
+<script src="/control-center.js"></script>
+<script>
+window.frameControlCenter = FrameControlCenter.mount({document, api, refresh, refreshAudio: refreshAfterAudio,
+  getContext: () => ({sample: state, online, generation: devGen, device: window.connDevice}),
+  openConnection: () => $("conn").click(), platform: window.frameApp?.platform || ""});
+window.frameControlCenter.host(HOST);
+if (state) window.frameControlCenter.status(state, stateReceivedAt, stateRead);
+else if (stateRead.error) window.frameControlCenter.unavailable(stateRead.error);
+if (online === false) window.frameControlCenter.connection(false);
+</script>
 </body>
 </html>
@@ -137,7 +137,7 @@ LINK = None  # the connector (frame_link.Link); None on the Frame itself
 # install's clean-up) to the other headset.
 _work_lock = threading.Lock()
 _work = [0]
-NOT_HEADSET_WORK = {"/api/devices", "/api/contact", "/api/contact/prompt"}
+NOT_HEADSET_WORK = {"/api/devices", "/api/contact", "/api/contact/prompt", "/api/queue"}


@contextlib.contextmanager
@@ -286,40 +286,120 @@ def backfill_art(apps=(), titles=()):
    return True


-def start_job(label, work, progress=False):
-    """Run work() in the background. It returns a dict with a "message"."""
+def _new_job_locked(label, **fields):
    now = time.time()
-    with _jobs_lock:
-        for j in [j for j, v in _jobs.items() if v["done"] and now - v["time"] > JOB_TTL]:
-            del _jobs[j]
-        job = secrets.token_hex(8)
-        _jobs[job] = {"label": label, "done": False, "error": None, "message": None, "result": None, "time": now}
+    for j in [j for j, v in _jobs.items() if v["done"] and now - v["time"] > JOB_TTL]:
+        del _jobs[j]
+    job = secrets.token_hex(8)
+    _jobs[job] = {"label": label, "done": False, "error": None, "message": None, "result": None, "time": now, **fields}
+    return job

+
+def _run_job(job, label, work, progress):
    def report(stage, percent=None):
        with _jobs_lock:
            _jobs[job].update(stage=stage, percent=percent)

-    def run():
-        fields = {}
-        try:
-            result = work(report) if progress else work()
-            fields = {"message": result.get("message") or f"{label}: done", "result": result}
-        except (Failure, frame_android.FrameError) as e:
-            fields = {"error": unreachable(str(e)) or str(e)}
-            frame_telemetry.diagnostic(f"job {label.split()[0]}", e)
-        except SourceError as e:  # already user-readable, and about a store, not the Frame
-            fields = {"error": str(e)}
-        except Exception as e:
-            fields = {"error": f"{type(e).__name__}: {e}"}
-            frame_telemetry.diagnostic(f"job {label.split()[0]}", e)
-        finally:
-            with _jobs_lock:
-                _jobs[job].update(fields, done=True, time=time.time())
+    fields = {}
+    try:
+        result = work(report) if progress else work()
+        fields = {"message": result.get("message") or f"{label}: done", "result": result}
+    except (Failure, frame_android.FrameError) as e:
+        fields = {"error": unreachable(str(e)) or str(e)}
+        frame_telemetry.diagnostic(f"job {label.split()[0]}", e)
+    except SourceError as e:  # already user-readable, and about a store, not the Frame
+        fields = {"error": str(e)}
+    except Exception as e:
+        fields = {"error": f"{type(e).__name__}: {e}"}
+        frame_telemetry.diagnostic(f"job {label.split()[0]}", e)
+    finally:
+        with _jobs_lock:
+            _jobs[job].update(fields, done=True, time=time.time())

-    busy_thread(run).start()
+
+def start_job(label, work, progress=False):
+    """Run work() in the background. It returns a dict with a "message"."""
+    with _jobs_lock:
+        job = _new_job_locked(label)
+    busy_thread(_run_job, job, label, work, progress).start()
    return {"message": f"{label}…", "job": job}


+# ---- The install queue: Android games and apps, one after another ----------
+#
+# Installs from the Android store, Import from my Quest and My Meta library each copy
+# a game into a Lepton instance, and each refuses to start while another is running.
+# Queued, the page can line up several: one worker runs them in order, each as a
+# normal job (/api/job) that reads "queued" until its turn. A queued install can be
+# removed until it starts; each runs on the headset it was queued for, or not at all.
+
+_queue = []  # [job, label, work, progress, headset id], in order; the running one is not here
+_queue_state = {"worker": False, "running": None}
+
+
+def _restage_locked():
+    ahead = 1 if _queue_state["running"] else 0
+    for i, (job, *_) in enumerate(_queue):
+        n = ahead + i
+        _jobs[job]["stage"] = f"Queued: {n} install{'' if n == 1 else 's'} before it" if n else "Queued: next"
+
+
+def queue_job(label, work, progress=False):
+    """Like start_job, but runs after every install queued before it."""
+    device = LINK.active_device()["id"] if LINK else None
+    with _jobs_lock:
+        job = _new_job_locked(label, queued=True, stage=None, percent=None)
+        _queue.append([job, label, work, progress, device])
+        _restage_locked()
+        ahead = len(_queue) - 1 + (1 if _queue_state["running"] else 0)
+        start, _queue_state["worker"] = not _queue_state["worker"], True
+    if start:
+        threading.Thread(target=_drain_queue, daemon=True).start()
+    return {"message": f"{label}: queued, {ahead} before it" if ahead else f"{label}…", "job": job, "queued": ahead}
+
+
+def _drain_queue():
+    while True:
+        with _jobs_lock:
+            if not _queue:
+                _queue_state.update(worker=False, running=None)
+                return
+            job, label, work, progress, device = _queue.pop(0)
+            _queue_state["running"] = job
+            _jobs[job].update(queued=False, stage=None)
+            _restage_locked()
+
+        def guarded(*report, work=work, device=device):
+            with working(device):  # refused if the app switched headsets since it was queued
+                return work(*report)
+        _run_job(job, label, guarded, progress)
+
+
+def install_queue():
+    """The running install and those waiting, in order."""
+    with _jobs_lock:
+        ids = ([_queue_state["running"]] if _queue_state["running"] else []) + [q[0] for q in _queue]
+        return {"jobs": [{"job": j, "label": _jobs[j]["label"], "queued": bool(_jobs[j].get("queued")),
+                          "stage": _jobs[j].get("stage"), "percent": _jobs[j].get("percent")}
+                         for j in ids if j in _jobs]}
+
+
+def queue_action(body):
+    """{"action": "remove", "job"}: take a waiting install out of the queue."""
+    if body.get("action") != "remove":
+        raise Failure("unknown action", 400)
+    job = body.get("job")
+    with _jobs_lock:
+        for i, q in enumerate(_queue):
+            if q[0] == job:
+                del _queue[i]
+                _jobs[job].update(done=True, queued=False, cancelled=True, stage=None, time=time.time(),
+                                  error="Removed from the install queue")
+                _restage_locked()
+                return {"message": f"Removed {_jobs[job]['label']} from the install queue"}
+    raise Failure("that install isn't waiting in the queue (it may have started or finished)", 409)
+
+
 def job_status(query):
    with _jobs_lock:
        job = _jobs.get((parse_qs(query).get("id") or [""])[0])
@@ -629,13 +709,14 @@ def launch(body):
    return {"message": f"Launching {appid}"}


-def steam_frame(*args, timeout=40):
-    """Run frame_steam.py on the Frame (it drives the Steam client) and return its JSON."""
+def steam_frame(*args, timeout=40, script="frame_steam.py"):
+    """Run frame_steam.py (it drives the Steam client), or another on-Frame
+    helper with the same JSON contract, on the Frame and return its JSON."""
    try:
        out = ssh("python3 - " + " ".join(map(shlex.quote, args)),
-                  stdin=(HERE / "frame_steam.py").read_text(), timeout=timeout)
+                  stdin=(HERE / script).read_text(), timeout=timeout)
    except Failure as e:
-        # frame_steam.py prints {"error": ...} on stdout when it fails, but ssh()
+        # The helper prints {"error": ...} on stdout when it fails, but ssh()
        # reports stderr instead if there was any, so look in both.
        for line in [*reversed(getattr(e, "stdout", "").splitlines()), *reversed(str(e).splitlines())]:
            try:
@@ -686,6 +767,20 @@ def vr(body):
    return result


+# Downloads are about 20 MB; starting waits for the game, the injection and SteamVR.
+MOD_TIMEOUT = {"status": 40, "install": 600, "start": 900, "uninstall": 60}
+
+
+def mods(body):
+    """UEVR for one installed Unreal game: status, install, start (inject) or uninstall."""
+    appid, action = str(body.get("appid", "")), body.get("action")
+    if not APPID.match(appid):
+        raise Failure("bad appid", 400)
+    if action not in MOD_TIMEOUT:
+        raise Failure("action must be " + ", ".join(MOD_TIMEOUT), 400)
+    return steam_frame(action, appid, timeout=MOD_TIMEOUT[action], script="frame_mods.py")
+
+
 def steam_search(query):
    q = parse_qs(query)
    cc = (q.get("cc") or [""])[0].upper()
@@ -701,9 +796,14 @@ def set_volume(body):
    # Validate everything before touching the headset.
    level = None
    if "level" in body:
-        level = float(body["level"])
-        if not 0 <= level <= 1:
+        value = body["level"]
+        if type(value) not in (int, float) or not 0 <= value <= 1:
            raise Failure("level must be 0..1", 400)
+        level = float(value)
+    if not body or set(body) - {"level", "muted"}:
+        raise Failure("Provide level or muted", 400)
+    if "muted" in body and type(body["muted"]) is not bool:
+        raise Failure("muted must be true or false", 400)
    if "muted" in body:
        ssh(f"wpctl set-mute @DEFAULT_AUDIO_SINK@ {1 if body['muted'] else 0}")
    if level is not None:
@@ -1293,7 +1393,7 @@ def android(body):
                m = frame_apk_versions.install(pkg, url) if url else frame_catalog.install(pkg)
                message = f"Installed {m['label']}. It's in the Steam library; launching it opens its own panel."
                return {"message": f"{message} {frame_android.layer_note(m)}".strip(), "app": m}
-            return start_job(f"Install {pkg}", work)
+            return queue_job(f"Install {pkg}", work)
        if action == "refresh-art":
            if not pkg and not body.get("all"):
                raise Failure('choose a package or all apps', 400)
@@ -1364,7 +1464,7 @@ def quest(body):
    if type(data) is not bool or type(older) is not bool:
        raise Failure("data and allowDowngrade must be true or false", 400)
    ensure_master()
-    return start_job(f"Import {pkg} from Quest",
+    return queue_job(f"Import {pkg} from Quest",
                     lambda report: frame_quest.import_game(pkg, serial, data=data, progress=report,
                                                            allow_downgrade=older), progress=True)

@@ -1445,7 +1545,7 @@ def meta(body):
                    raise frame_meta.MetaError(frame_meta.redact(e, 1200)) from None
                except Exception as e:  # never let an unexpected error's text carry the token
                    raise frame_meta.MetaError(frame_meta.redact(f"{type(e).__name__}: {e}", 600)) from None
-            return start_job(f"{'Install and test' if test else 'Install'} {app_id} from Meta", work, progress=True)
+            return queue_job(f"{'Install and test' if test else 'Install'} {app_id} from Meta", work, progress=True)
        if action == "test":
            pkg = str(body.get("package", ""))
            if not frame_android.PKG_RE.match(pkg):
@@ -2339,7 +2439,7 @@ def source_install(body):
            raise SourceError('This source is disabled')
    except SourceError as e:
        raise Failure(str(e), 400)
-    return start_job('Install ' + entry, lambda report: apk_search.install(source, entry, version, report), progress=True)
+    return queue_job('Install ' + entry, lambda report: apk_search.install(source, entry, version, report), progress=True)


 def source_manage(body):
@@ -2382,7 +2482,7 @@ POST = {
    "/api/agent/approval": agent_approval, "/api/assistant/chat": assistant_chat,
    "/api/input": remote_input, "/api/touch": remote_touch,
    "/api/settings/artwork": frame_steamgriddb.save_settings,
-    "/api/sources": source_manage, "/api/sources/install": source_install, "/api/android/display": android_display, "/api/android": android, "/api/quest": quest, "/api/meta": meta, "/api/titles": titles, "/api/launch": launch, "/api/steam": steam, "/api/volume": set_volume, "/api/clipboard": clipboard,
+    "/api/sources": source_manage, "/api/sources/install": source_install, "/api/android/display": android_display, "/api/android": android, "/api/quest": quest, "/api/meta": meta, "/api/queue": queue_action, "/api/titles": titles, "/api/launch": launch, "/api/steam": steam, "/api/mods": mods, "/api/volume": set_volume, "/api/clipboard": clipboard,
        "/api/flatpak": flatpak, "/api/open": open_thing, "/api/shots/save": save_shots,
        "/api/webinstall/check": webinstall_check, "/api/webinstall/start": webinstall_start,
        "/api/webinstall/cancel": webinstall_cancel,
@@ -2559,6 +2659,10 @@ class Handler(BaseHTTPRequestHandler):
                self.send_json(frame_steamgriddb.settings())
            elif path == "/artwork-settings.js":
                self.send_bytes((HERE / 'artwork-settings.js').read_bytes(), 'text/javascript; charset=utf-8')
+            elif path == "/control-center.js":
+                self.send_bytes((HERE / 'control-center.js').read_bytes(), 'text/javascript; charset=utf-8')
+            elif path == "/control-center.css":
+                self.send_bytes((HERE / 'control-center.css').read_bytes(), 'text/css; charset=utf-8')
            elif path == "/assistant":
                page = (HERE / "assistant.html").read_text().replace("__FRAME_KEY__", json.dumps(UI_KEY).replace("<", "\\u003c"))
                self.send_bytes(page.encode(), "text/html; charset=utf-8")
@@ -2622,6 +2726,8 @@ class Handler(BaseHTTPRequestHandler):
                self.send_json(_input.send([]) if parse_qs(url.query).get("start") == ["1"] else dict(_input.status))
            elif path == "/api/job":
                self.send_json(job_status(url.query))
+            elif path == "/api/queue":
+                self.send_json(install_queue())
            elif path == "/api/android/displays":
                self.send_json(android_displays())
            elif path == "/api/android/reports":
Author	SHA1	Message	Date
Alex Southwell	ae8cc1b4a6	Merge pull request #58 from saphid/fix/flat2vr-mods-windows UEVR helper tests: import and skip cleanly on Windows (fixes PR #50 CI)	2026-10-18 10:54:26 +11:00
SAPHID	63017e1969	chore: resolve conflicts with main	2026-10-17 22:10:04 +00:00
Alex Southwell	bcdd9d0830	Merge pull request #99 : Queue Android and Quest installs Queue Android and Quest installs; prepare Frame Control 0.4.7	2026-10-15 13:32:54 +11:00
saphid	ddd2d1c295	Merge landed Quest and Meta library stack	2026-10-15 13:10:26 +11:00
Alex Southwell	8f2e34a40e	Merge pull request #93 : My Meta library (Experimental) My Meta library (Experimental): install and test Quest games you own	2026-10-15 13:10:18 +11:00
Alex Southwell	351230fcad	Merge pull request #92 : Import from my Quest Import from my Quest: copy games you own off a USB-connected Quest	2026-10-15 13:10:04 +11:00
saphid	5b35e9cc5d	Merge current main and prepare Frame Control 0.4.7	2026-10-15 13:09:59 +11:00
saphidandClaude Opus 5.5	671c4c06e7	Install queue: only the install showing its progress hides the bar Removing a waiting import hid the progress of the one still running. Found by GPT-6.1 Sol review round 1. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-14 20:43:18 +11:00
saphidandClaude Opus 5.5	443813a088	Install queue: Android store, Quest and Meta installs wait their turn Installs from the Android store, Import from my Quest and My Meta library now go into one server-side queue and run one after another, instead of being refused while another runs. The page shows the queue with Remove for installs that haven't started; each queued install runs only on the headset it was queued for. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-14 20:38:53 +11:00
Alex Southwell	ba0ac6022b	Merge pull request #96 from saphid/feat/frame-control-center Add comprehensive Steam Frame Control Center	2026-10-14 18:51:07 +11:00
saphid	8b9bd2119c	Add searchable Steam Frame Control Center with live metrics	2026-10-14 18:40:59 +11:00
Alex Southwell	a8888cb2fc	Merge pull request #94 from saphid/feat/telemetry-timezone Usage statistics: send a country (from the time zone setting), and show the notice again when it changes	2026-10-14 13:22:27 +11:00
saphidandClaude Opus 5.5	1f51cc89d2	Frame Control 0.4.6 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-14 13:14:46 +11:00
saphidandClaude Opus 5.5	bcdb4c3b78	Usage statistics: no country for clock-rule zones, and Johnston Atoll is UM From review: EET and WET link to Athens and Lisbon but name clock rules, not Greece or Portugal, so they and the other rule names (CET, EST5EDT, …) send nothing. Pacific/Johnston has left zone.tab, which made its Honolulu group look only American; it's set to UM by hand. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-14 13:01:46 +11:00
saphidandClaude Opus 5.5	e9b02d61e7	Usage statistics: don't give an old zone name the country of the zone it now links to From review: tzdata links an old name to any zone with the same clocks, even in another country (Africa/Asmera, Eritrea, links to Africa/Nairobi). An old name now gets a country only when every zone sharing its target is in that country, or when it's a hand-checked old name for a place listed in zone.tab. The rest (UTC, CET, GMT, …) send nothing. Every zone Node's ICU reports has an entry. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-14 12:55:18 +11:00
saphidandClaude Opus 5.5	02419ffbd4	Usage statistics: send a country, not the time zone; only the notice itself counts as seen From review: the time zone setting could hold any text (a TZ like home/alex/private passed the name check), so the app now looks the zone up in a table made from the tz database (scripts/timezones.py) and sends only its two-letter country; anything not in the table sends nothing. Turning a setting on no longer counts as having seen the new notice, and the country is taken out at send time until it has been, so it can't leave early whatever order things happen in. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-14 12:48:46 +11:00
saphidandClaude Opus 5.5	5db9631571	Usage statistics: send the time zone, and show the notice again when it lists something new Opens, installs and updates carry the computer's time zone name (from Electron, which knows it on every OS), so we can see roughly which countries Frame Control is used in without ever seeing an address. The first-run notice now has a version. Copies that saw the older notice see it again, and keep sending their usual statistics, but leave the time zone out until they've seen the new one. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-14 12:41:19 +11:00
saphidandClaude Opus 5.5	d6fb5e917a	UEVR helper tests: import and skip cleanly on Windows frame_mods runs on the Frame, but the server tests import it on every desktop OS; the module-level `import fcntl` failed test discovery on Windows. Import it where the lock is taken, as frame_panels and frame_vr do. Skip the Frame-side helper tests on Windows, as test_input does for the input agent: they rely on /proc, flock and POSIX prefix paths. The server routes and the usage-error check still run there. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-29 21:28:57 +10:00
saphid	daf30515b1	Merge main into flat2vr-mods # Conflicts: # README.md # ui/index.html # ui/server.py	2026-09-29 13:07:33 +10:00
saphidandClaude Opus 5.5	2f056dbcff	UEVR: address the second review; recheck on the Frame frame_inject.py declares every Win32 signature, checks each result, frees its remote buffers and closes handles. Uninstall only accepts our folder and UEVR's own per-game settings folders, and keeps the receipt if anything can't be removed. The injector's reply is parsed defensively. Rechecked on a real Frame: install, three cold starts injected (33-35 s), clean uninstall. Part of #26. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-29 13:04:12 +10:00
saphidandClaude Opus 5.5	e3176a2de8	UEVR: inject with Frame Control's own script instead of UEVR's GUI injector UEVR's .NET injector, driven with XSendEvent, injected in only 6 of 8 cold starts on the Frame: in bad sessions every new injector ignored input or never showed a window. start() now runs frame_inject.py under python.org's embeddable Python (pinned SHA-256) in the game's Wine session, repeating the frontend's own Inject steps: nullify VR plugins, load openvr_api.dll, set Frontend_RequestedRuntime, load UEVRBackend.dll. Verified 9/9 cold starts in 33-35 s and a clean UI install/play/remove cycle. No .NET download any more (47 MB installed instead of about 190 MB). Also from the SWE-2 Max review: one mod action at a time (flock), a download size cap, errors always reported as JSON, a receipt can't name another app's prefix, 0 frames counts as an answer, and a longer server timeout for start. Part of #26. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-29 12:53:28 +10:00
saphidandClaude Opus 5.5	416f3181cc	Add a UEVR mod manager: install, play in VR and remove from Frame Control Installed Unreal Engine games get a "VR mod" button. ui/frame_mods.py runs on the Frame: it downloads the pinned official UEVR 1.05 release and Microsoft's .NET 6 runtimes (hash-checked, safely unpacked) into the game's Proton prefix with a receipt; starts the game, runs the injector in the game's own Wine session and presses OpenVR + Inject with XSendEvent (gamescope keeps real input on the game); confirms UEVRBackend.dll is loaded and SteamVR counts frames; and removes exactly what it added. Verified on a real Frame 2026-09-29 with Gravitas, through the UI: install, four injections (three from a cold start), remove back to the pre-install prefix listing. The headset was unworn, so the VR image, tracking and controls are not verified. Part of #26. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>	2026-09-29 11:52:02 +10:00