Bump version to 0.2.1

Mark sideloaded apps, explain failed downloads, diagnose from the UI
Sideloaded apps - A Sony-signed package installed with another tool ("fake": true in app.json, but no PatchDL loopback URL) stays Official but is marked Sideloaded, and its Updates switch starts off, so Update all skips it. Switching it on is saved separately, so a switch saved earlier can't turn it on. The card says an update replaces this exact version. Failed downloads - When the package list can't be fetched, the download job records why (DNS, connection, timeout, TLS, redirect, HTTP status, not a manifest) with the curl and HTTP codes; the card says so with a Details link. - Details runs /api/netcheck?title=<id>, which walks the game's update list and manifest the way a download does and reports PatchDL's own DNS answer for each host. The dialog shows a checklist and a report to copy into an issue; on the PS5 a QR code opens it on a phone.
2026-10-18 00:01:56 +02:00 · 2026-10-17 10:45:52 +02:00 · 2026-10-17 10:39:49 +02:00 · 2026-10-16 19:04:03 +02:00 · 2026-10-16 17:42:48 +02:00 · 2026-10-16 14:25:40 +02:00
51 changed files with 5687 additions and 500 deletions
@@ -0,0 +1 @@
+custom: ["https://paypal.me/oliverkoester"]
@@ -0,0 +1,6 @@
+# Files included in the release archive.
+# One path per line, relative to the repository root.
+
+patchdl-ps5.elf
+README.md
+LICENSE
@@ -0,0 +1,148 @@
+name: PS5 Build and Release
+
+on:
+  push:
+    paths-ignore:
+      - "**/*.md"
+      - "docs/**"
+      - "photos/**"
+  pull_request:
+    paths-ignore:
+      - "**/*.md"
+      - "docs/**"
+      - "photos/**"
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.event_name }}
+  cancel-in-progress: false
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    outputs:
+      archive_name: ${{ steps.package.outputs.archive_name }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout PatchDL
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Checkout pacbrew-repo
+        uses: actions/checkout@v4
+        with:
+          repository: ps5-payload-dev/pacbrew-repo
+          path: pacbrew-repo
+
+      - name: Checkout SDK stubs
+        uses: actions/checkout@v4
+        with:
+          repository: ps5-payload-dev/sdk
+          path: ps5-sdk
+
+      - name: Setup build environment
+        run: |
+          sudo apt update
+          sudo apt install -y \
+            autoconf \
+            automake \
+            build-essential \
+            clang-18 \
+            cmake \
+            curl \
+            git \
+            libarchive-tools \
+            libtool \
+            lld-18 \
+            makepkg \
+            meson \
+            ninja-build \
+            pacman-package-manager \
+            pkg-config \
+            python3 \
+            zip
+
+      - name: Build and install pacbrew packages
+        shell: bash
+        run: |
+          set -euo pipefail
+
+          build_and_install() {
+            local package_dir="$1"
+            pushd "pacbrew-repo/${package_dir}"
+            makepkg -c -f
+            sudo pacman --noconfirm -U ./ps5-payload-*.pkg.tar.gz
+            popd
+          }
+
+          build_and_install sdk
+          build_and_install libcxx
+          build_and_install zlib
+          build_and_install zstd
+          build_and_install openssl
+          build_and_install libpsl
+          build_and_install curl
+
+      - name: Build payload
+        env:
+          PS5_PAYLOAD_SDK: /opt/ps5-payload-sdk
+          PS5_SCE_STUBS_DIR: ${{ github.workspace }}/ps5-sdk/sce_stubs
+        run: |
+          scripts/build_ps5.sh clean all
+
+      - name: Create release archive
+        id: package
+        shell: bash
+        run: |
+          set -euo pipefail
+          version_tag="$(git describe --abbrev=6 --dirty --always --tags 2>/dev/null || echo "${GITHUB_SHA::7}")"
+          archive_name="PatchDL_${version_tag}.zip"
+          manifest_file=".github/release-files.txt"
+
+          mapfile -t release_files < <(grep -Ev '^[[:space:]]*(#|$)' "${manifest_file}")
+
+          if [ "${#release_files[@]}" -eq 0 ]; then
+            echo "Release manifest is empty: ${manifest_file}" >&2
+            exit 1
+          fi
+
+          for release_file in "${release_files[@]}"; do
+            if [ ! -f "${release_file}" ]; then
+              echo "Missing release file: ${release_file}" >&2
+              exit 1
+            fi
+          done
+
+          zip -9 "${archive_name}" "${release_files[@]}"
+
+          echo "archive_name=${archive_name}" >> "$GITHUB_OUTPUT"
+
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: ${{ steps.package.outputs.archive_name }}
+          path: ${{ steps.package.outputs.archive_name }}
+          if-no-files-found: error
+
+  release:
+    needs: build
+    permissions:
+      contents: write
+    if: startsWith(github.ref, 'refs/tags/')
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download build artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: ${{ needs.build.outputs.archive_name }}
+          path: dist
+
+      - name: Create GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          tag_name: ${{ github.ref_name }}
+          generate_release_notes: true
+          files: dist/${{ needs.build.outputs.archive_name }}
@@ -0,0 +1,674 @@
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+    (at your option) any later version.
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+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
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+if any, to sign a "copyright disclaimer" for the program, if necessary.
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+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
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+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.
@@ -20,10 +20,16 @@ SRCS := src/main.c \
        src/patchdl_scan.c \
        src/patchdl_appdb.c \
        src/patchdl_net.c \
+        src/patchdl_prospero.c \
        src/patchdl_resolve.c \
        src/patchdl_verxml.c \
        src/patchdl_install.c \
-        src/patchdl_notify.c
+        src/patchdl_notify.c \
+        src/patchdl_tile.c
+
+# patchdl_tile.c uses .incbin to embed param.json + icon0.png; touching the
+# assets must trigger a rebuild.
+TILE_ASSETS := assets/param.json assets/icon0.png

 WEB_ASSETS := web/index.html web/styles.css web/app.js
 GEN_SRCS := $(patsubst web/%,gen/web/%.c,$(WEB_ASSETS))
@@ -56,8 +62,8 @@ gen/web/%.c: web/% scripts/gen_asset_module.py | gen/web
 $(SQLITE_OBJ): $(SQLITE_DIR)/sqlite3.c
 	$(CC) $(SQLITE_CFLAGS) -c -o $@ $<

-$(BIN): $(SRCS) $(GEN_SRCS) $(SQLITE_OBJ)
-	$(CC) $(CFLAGS) -o $@ $^ $(LDADD)
+$(BIN): $(SRCS) $(GEN_SRCS) $(SQLITE_OBJ) $(TILE_ASSETS)
+	$(CC) $(CFLAGS) -o $@ $(SRCS) $(GEN_SRCS) $(SQLITE_OBJ) $(LDADD)

 test: $(BIN)
 	$(PS5_DEPLOY) -h $(PS5_HOST) -p $(PS5_PORT) $^
@@ -1,127 +1,152 @@
-# PatchDL
+<h1 align="center">PatchDL</h1>

-A standalone PlayStation 5 ELF payload that downloads and installs official game
-patches on your terms. It serves its own dark-mode web UI and runs without
-etaHEN.
+<p align="center">
+  <img src="docs/images/hero.jpg" alt="PatchDL in a desktop browser and on a phone, fetching a patch that runs on an older firmware" width="900">
+</p>

-PatchDL is built for setups where nanoDNS blocks Sony's servers for the whole
-console. It resolves the Sony patch CDN on its own DNS path, so the rest of the
-system stays offline and only the patches you pick get fetched.
+<p align="center">
+  <b>Official updates for your PS5 and PS4 games, from any browser.</b><br>
+  PatchDL finds the newest update for every PS5 and PS4 game on your console, downloads it at full speed and installs it.<br>
+  Run it from your phone, your laptop or the PS5 itself.
+</p>

-by Knutwurst
+<p align="center">
+  <img src="https://img.shields.io/github/v/release/knutwurst/ps5-patchdl?style=for-the-badge&label=release&color=22c55e" alt="Latest release">
+  <img src="https://img.shields.io/github/downloads/knutwurst/ps5-patchdl/total?style=for-the-badge&color=22c55e" alt="Downloads">
+  <img src="https://img.shields.io/badge/games-PS5%20%7C%20PS4-22c55e?style=for-the-badge" alt="PS5 and PS4 games">
+  <img src="https://img.shields.io/badge/FW-1.00%E2%80%9313.60-22c55e?style=for-the-badge" alt="Firmware 1.00 to 13.60">
+  <img src="https://img.shields.io/badge/UI-any%20browser-22c55e?style=for-the-badge" alt="Web UI in any browser">
+  <img src="https://img.shields.io/github/license/knutwurst/ps5-patchdl?style=for-the-badge&color=3a3a3a" alt="License">
+</p>

-## What it does
+<p align="center">
+  <a href="https://github.com/knutwurst/ps5-patchdl/releases/latest">
+    <img src="https://img.shields.io/badge/Download-latest%20release-22c55e?style=for-the-badge&logo=github&logoColor=white" alt="Download the latest release" height="42">
+  </a>
+</p>

- Scans installed titles and classifies each: genuine install, ShadowMountPlus
-  mount, preinstall, or unknown.
- Reads the title name, installed version, and Sony `version.xml` URL from the
-  PS5 app database.
- Fetches each title's `version.xml` past nanoDNS (a raw DNS query to 1.1.1.1)
-  and verifies TLS against the pinned SCEI DNAS root.
- Picks the newest patch compatible with the current firmware
-  (`system_ver <= firmware`), so an update never forces a firmware upgrade.
- Downloads the patch from Sony's manifest pieces into one local `.pkg`, then
-  installs it through Sony's AppInstUtil service.
+<p align="center">
+  If you like what I do, you can buy me a coffee*:
+  <a href="https://paypal.me/oliverkoester"><img src="https://img.shields.io/badge/Donate-PayPal-22c55e?style=flat-square&logo=paypal&logoColor=white" alt="Donate via PayPal"></a><br>
+  <sub>*It doesn't have to be a generous donation. A few cents are enough to show me who is interested in further development. So the motivation stays and I just know that I am not programming for the bin ;)</sub>
+</p>

-## Downloading
+---

-PatchDL pulls each patch over a pool of connections instead of one stream, which
-lifts the ~7 MB/s per-connection ceiling on the Sony CDN. Set the connection
-count (1 to 16) in Settings with the stepper; the change applies live, with no
-payload restart. One patch downloads at a time and further requests queue.
+## Highlights

-Downloads survive interruptions:
+- **PS5 and PS4 games.** PatchDL updates both, straight from Sony's servers. PS4 updates land where the console keeps them, next to the game.
+- **Your whole library at a glance.** Every installed game shows up with its icon, its version and the newest update Sony offers for it, sorted A to Z. Install or remove a game and the list follows within seconds, no restart needed.
+- **Update all.** One click queues every game that has an update. PatchDL works through the queue and installs each update as soon as it lands.
+- **Fast downloads.** Up to 16 parallel connections per update. Change the number in Settings while a download runs.
+- **Survives reboots.** Pause, resume, or lose power: PatchDL saves progress after every finished piece and continues where it stopped.
+- **Made for your firmware.** You only see updates your console can run. When Sony's newest patch needs a newer firmware, PatchDL finds the newest one that still runs on yours and helps you get it: scan a QR code with your phone, copy one link, and the PS5 does the rest.
+- **Knows where each game came from.** PatchDL checks every game's package and recognizes disc and PlayStation Store installs. It only ever patches games Sony signed.
+- **Checked against Sony's checksums.** Turn on verification and PatchDL compares every piece with the SHA-256 Sony publishes for it.
+- **Reuses what's already there.** If the update package is already on the console, PatchDL checks it against Sony's checksums and downloads only the pieces that don't match.
+- **Keeps your storage tidy.** After an install, PatchDL confirms the game runs the new version and then deletes the package. Prefer to keep packages? Turn that off, and Settings lists every package on the console with its size and version, ready to delete.
+- **A tile on your home screen.** One toggle adds PatchDL to the PS5 home screen. Tap it and the UI opens in the console's browser.
+- **Live progress.** A banner at the top shows the current game, speed, time left and where you are in the queue. During an install, the game's card shows how much of the update the console has read.

- **Resume across a reboot.** PatchDL records progress per manifest piece in a
-  sidecar beside the `.pkg`, written after every completed piece, so a reboot or
-  relaunch continues where it stopped.
- **Pause, Resume, Cancel.** Pause keeps the partial file, Resume continues it,
-  Cancel deletes it. All three work at any point in a download.
- **Verification.** Turn on "Verify downloaded pieces (SHA-256)" to check each
-  piece against its manifest hash while downloading. After a download you can
-  also verify the assembled package on-device against Sony's per-piece hashes
-  (`GET /api/pkgverify/<title_id>`).
+## Screenshots

-Patches download to `/data/patchdl` on the internal SSD. Large retail updates
-run tens of GB.
+<table>
+  <tr>
+    <td align="center" width="50%"><img src="docs/images/games.jpg" width="420" alt="Games view with a running download"><br><sub><b>Games</b> &nbsp;·&nbsp; every update waiting for you, one click away</sub></td>
+    <td align="center" width="50%"><img src="docs/images/library.jpg" width="420" alt="Full library with game icons, sorted by name"><br><sub><b>Library</b> &nbsp;·&nbsp; icons, versions and firmware needs, A to Z</sub></td>
+  </tr>
+  <tr>
+    <td align="center" width="50%"><img src="docs/images/oldfw.jpg" width="420" alt="QR code on the TV and the step-by-step guide on a phone"><br><sub><b>Older firmware</b> &nbsp;·&nbsp; scan on the TV, paste one link on your phone</sub></td>
+    <td align="center" width="50%"><img src="docs/images/settings.jpg" width="420" alt="Settings view"><br><sub><b>Settings</b> &nbsp;·&nbsp; changes apply right away, no restart</sub></td>
+  </tr>
+  <tr>
+    <td align="center" colspan="2"><img src="docs/images/tile-homescreen.jpg" width="420" alt="PatchDL tile on the PS5 home screen"><br><sub><b>Home screen</b> &nbsp;·&nbsp; the PatchDL tile on a real PS5</sub></td>
+  </tr>
+</table>

-## Safety model
+## Fits any screen

-Deny-by-default. A patch installs only for a genuine install, and only when the
-patch metadata targets the installed game:
+Start an update from the couch with your phone, check on it from your laptop, or open it on the TV. The UI adapts to whatever screen it's on.

-| Source                | Check | Download | Install |
-|-----------------------|-------|----------|---------|
-| official              | yes   | yes      | yes     |
-| shadowmount           | yes   | yes      | no      |
-| preinstall / unknown  | yes   | no       | no      |
+<p align="center">
+  <img src="docs/images/phones.jpg" alt="PatchDL on a phone: game list and Settings" width="560">
+</p>

-Two guards stop the wrong target being installed: the patch target id (from
-`version.xml` / `manifest_url`) must match the installed game, and the install
-call receives the installed game's content id from app.db. PatchDL refuses a
-true target-title mismatch rather than installing a phantom title.
+## Get started

-All writes stay under `/data/patchdl`. PatchDL never writes to the system
-partition and never touches firmware.
+1. Download `patchdl_<version>.elf` from the [latest release](https://github.com/knutwurst/ps5-patchdl/releases/latest).
+2. Send it to your PS5 with the ELF loader you already use.
+3. A notification on the TV shows the address, for example `http://192.168.0.42:12880/`. Open it in any browser on your network.
+4. Optional: switch on **Home-screen shortcut** in Settings to get the PatchDL tile.

-## Settings
+**You need** a PS5 that can load ELF payloads. PatchDL runs on firmware 1.00 to 13.60 (tested on 11.60 and 13.60).

-Settings persist to `/data/patchdl/config.json` and survive a restart:
+## Good to know

- Default policy (allow or deny) and a per-game enable toggle.
- Install after download, as a global default with a per-game override.
- Delete the PKG after a successful install.
- Verify downloaded pieces (SHA-256).
- Parallel download connections (1 to 16), applied live.
+**Does PatchDL download games?**
+No. It fetches updates for games that are already installed on your console. Nothing else.

-## Build
+**Which games does PatchDL update?**
+PS5 and PS4 games you installed from disc or from the PlayStation Store. PatchDL reads each game's package before it offers anything, and it leaves every other title alone.

-Requires `ps5-payload-dev/sdk`. The network and install features need the
-prebuilt libcurl + OpenSSL from `ps5-payload-dev/pacbrew-repo` in the SDK sysroot
-(`target/user/homebrew`); `scripts/build_ps5.sh` enables them when present.
-libmicrohttpd is vendored under `vendor/etahen`, SQLite under `vendor/sqlite`.
+**Where do the updates come from?**
+From Sony's official update servers, the same files your console downloads on its own. PatchDL downloads only from a short list of PlayStation CDN hosts. To find older patches it also asks [Prospero Patches](https://prosperopatches.com/) which versions exist for a game. That lookup sends the game's title ID and nothing else.
+
+**Can I get an older patch that runs on my firmware?**
+Yes. Sony still hosts older patches, but its servers only tell your console about the newest one. When that one needs a newer firmware, PatchDL looks up the version history on [Prospero Patches](https://prosperopatches.com/) and lists the game under *Updates* with an **Old FW patch** button. Tap it and scan the QR code with your phone. Open the game on Prospero, pick the version PatchDL names (confirm the human check if one shows up) and copy the **SC** link. Paste it on your phone, and the PS5 downloads the patch from Sony and handles it like any other update.
+
+**Does it change the updates?**
+No. Each package stays exactly as Sony published it, and the console's own installer applies it.
+
+**Does it delete the package after installing?**
+Only once the install is confirmed: the game reports the new version and the console's installer recorded this exact package. If either check fails, the package stays. Switch off **Delete PKG after install** in Settings to keep every package.
+
+**Will it touch my system software?**
+No. PatchDL never downloads system software, and it only offers game updates that run on the firmware you have.
+
+**What about disc games?**
+Put the disc in, same as with any update.
+
+**What happens if the power goes out?**
+Start PatchDL again and press Resume. Finished pieces stay on disk.
+
+## Disclaimer
+
+PatchDL is an independent project. It is not affiliated with, endorsed by or sponsored by Sony Interactive Entertainment. "PlayStation" and "PS5" are trademarks of Sony Interactive Entertainment Inc. and appear here only to name the console PatchDL works with.
+
+PatchDL downloads official, unmodified game updates that Sony publishes for games already installed on your console. It does not download games, does not contain or distribute Sony software, keys or game content, and does not install unsigned or modified packages. Use it with games you own, and follow the laws of your country and the terms that apply to you. This project does not support piracy, and issues about pirated content will be closed.
+
+<details>
+<summary><b>Build from source</b></summary>
+
+<br>

 ```sh
 scripts/build_ps5.sh        # produces patchdl-ps5.elf
 ```

-## Deploy
+You need the [ps5-payload-dev SDK](https://github.com/ps5-payload-dev/sdk), version 0.44 or newer for firmware 1.00 to 13.60, with `libcurl` and `OpenSSL` from its [pacbrew-repo](https://github.com/ps5-payload-dev/pacbrew-repo). `libmicrohttpd` and SQLite are vendored. GitHub Actions builds every push; tagged builds become releases.

-This console uses the BD-JB autoloader with itsPLK's Payload Manager on port 8084
-(not a 9021 elfldr). `scripts/deploy_ps5.sh` uploads the version-named ELF and
-launches it; the payload replaces any running instance.
+To try a build on your own console:

 ```sh
 PS5_HOST=<console-ip> scripts/deploy_ps5.sh
 ```

-On start it shows an on-screen notification with the URL. Open the web UI at:
+</details>

-```text
-http://<console-ip>:12880/
-```
+## Credits

-## Status
+PatchDL is written in C and builds on [libmicrohttpd](https://www.gnu.org/software/libmicrohttpd/), [libcurl](https://curl.se/), [OpenSSL](https://www.openssl.org/), [SQLite](https://sqlite.org/) and the [ps5-payload-dev SDK](https://github.com/ps5-payload-dev/sdk). The version history behind older patches comes from [Prospero Patches](https://prosperopatches.com/). Thanks to everyone behind them.

-Verified on firmware 11.60: title scan, source classification, version
-resolution past the nanoDNS block, firmware-compatibility filtering, the parallel
-download pool, reboot-safe resume, and on-device SHA-256 verification. A full
-Dead Island 2 update (61.6 GB) downloaded and verified byte-perfect across
-several reboots.
+## Support

-Install works for same-region patches, where Sony stores the patch bytes under
-the installed game's own title id. PatchDL now mirrors etaHEN's native
-DirectPKGInstaller call shape for that path: it passes an empty
-`MetaInfo.content_id`, lets AppInstUtil bind the signed package metadata, keeps
-the returned content id, and exposes `/api/installstatus` for installer progress
-when `sceAppInstUtilGetInstallStatus` is exported.
+If you like what I do, you can buy me a coffee*: [![Donate](https://img.shields.io/badge/Donate-PayPal-22c55e?style=flat-square&logo=paypal&logoColor=white)](https://paypal.me/oliverkoester)

-Cross-region patches are a known limitation. Sony sometimes packages a regional
-patch under a different (master) storage title and ships it as a debug-magic
-container. PatchDL downloads such a patch and verifies it against Sony's hashes,
-but refuses to install it from the standalone ELF because `InstallByPackage`
-does not retarget signed package metadata on 11.60, and the homebrew alternative
-(BGFT register) returns "not supported" outside the system process. Installing
-that class of patch needs Sony's authenticated updater, which nanoDNS blocks.
-Disc games need the disc inserted for their patch to apply, which is a normal
-Sony requirement.
+<sub>*It doesn't have to be a generous donation. A few cents are enough to show me who is interested in further development. So the motivation stays and I just know that I am not programming for the bin ;)</sub>
+
+## License
+
+PatchDL is free software under the **GNU General Public License v3.0 or later**. See [LICENSE](LICENSE). Use it, study it, change it, share it. Forks stay under the same license.
+
+Copyright © 2026 Knutwurst.
@@ -0,0 +1,20 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512">
+  <defs>
+    <linearGradient id="bg" x1="0" y1="0" x2="0" y2="1">
+      <stop offset="0" stop-color="#0f2a1e"/>
+      <stop offset="1" stop-color="#0a1612"/>
+    </linearGradient>
+    <linearGradient id="badge" x1="0" y1="0" x2="0" y2="1">
+      <stop offset="0" stop-color="#21d07a"/>
+      <stop offset="1" stop-color="#179a59"/>
+    </linearGradient>
+  </defs>
+  <rect width="512" height="512" rx="72" fill="url(#bg)"/>
+  <rect x="56" y="56" width="160" height="160" rx="36" fill="url(#badge)"/>
+  <text x="136" y="178" font-family="Helvetica,Arial,sans-serif" font-size="116"
+        font-weight="800" fill="#0a1612" text-anchor="middle">PD</text>
+  <text x="256" y="346" font-family="Helvetica,Arial,sans-serif" font-size="80"
+        font-weight="700" fill="#e7ecea" text-anchor="middle">PatchDL</text>
+  <text x="256" y="404" font-family="Helvetica,Arial,sans-serif" font-size="32"
+        font-weight="500" fill="#7a8f86" text-anchor="middle">PS5 Patch Tool</text>
+</svg>
@@ -0,0 +1,10 @@
+{
+    "titleId": "PTDL00001",
+    "deeplinkUri": "http://127.0.0.1:12880/",
+    "localizedParameters": {
+        "defaultLanguage": "en-US",
+        "en-US": {
+            "titleName": "PatchDL"
+        }
+    }
+}
@@ -19,7 +19,7 @@ VERSION=$(sed -n 's/.*PATCHDL_VERSION[^"]*"\([^"]*\)".*/\1/p' "$ROOT_DIR/src/pat
 SRC_ELF="$ROOT_DIR/patchdl-ps5.elf"
 [ -f "$SRC_ELF" ] || { echo "build first: $SRC_ELF missing" >&2; exit 1; }

-UP_NAME="patchdl-ps5-v${VERSION}.elf"
+UP_NAME="patchdl_${VERSION}.elf"
 TMP_ELF="$ROOT_DIR/$UP_NAME"
 cp "$SRC_ELF" "$TMP_ELF"

@@ -1,3 +1,12 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
 #include <signal.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -1,12 +1,76 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
 #include "patchdl_appdb.h"

+#include <errno.h>
+#include <fcntl.h>
 #include <sqlite3.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <unistd.h>

 #define APP_DB_URI \
    "file:/system_data/priv/mms/app.db?immutable=1"
+/* A rescan can't open app.db by a relative path: SQLite turns it into an
+   absolute one with getcwd(), which resolves inside our own root again. So
+   it copies the file out through the working directory (the system root,
+   see patchdl_scan) and opens the copy. */
+#define APP_DB_REL      "system_data/priv/mms/app.db"
+#define APP_DB_SNAPSHOT "/data/patchdl/.appdb.snapshot"
+#define APP_DB_URI_SNAPSHOT "file:" APP_DB_SNAPSHOT "?immutable=1"
+
+static char g_appdb_err[64];
+
+const char *
+patchdl_appdb_error(void) {
+    return g_appdb_err;
+}
+
+static int
+snapshot_appdb(void) {
+    char   *buf;
+    ssize_t n;
+    int     in, out, rc = 0;
+
+    if ((in = open(APP_DB_REL, O_RDONLY | O_CLOEXEC)) < 0) {
+        snprintf(g_appdb_err, sizeof g_appdb_err, "open app.db errno %d", errno);
+        return -1;
+    }
+    out = open(APP_DB_SNAPSHOT, O_WRONLY | O_CREAT | O_TRUNC | O_CLOEXEC, 0600);
+    if (out < 0) {
+        snprintf(g_appdb_err, sizeof g_appdb_err, "open snapshot errno %d", errno);
+        close(in);
+        return -1;
+    }
+    if (!(buf = malloc(65536))) {
+        close(in);
+        close(out);
+        return -1;
+    }
+    while ((n = read(in, buf, 65536)) > 0)
+        if (write(out, buf, (size_t)n) != n) {
+            snprintf(g_appdb_err, sizeof g_appdb_err, "write snapshot errno %d", errno);
+            rc = -1;
+            break;
+        }
+    if (n < 0) {
+        snprintf(g_appdb_err, sizeof g_appdb_err, "read app.db errno %d", errno);
+        rc = -1;
+    }
+    free(buf);
+    close(in);
+    close(out);
+    if (rc) unlink(APP_DB_SNAPSHOT);
+    return rc;
+}

 #define APPDB_MAX 1024

@@ -51,8 +115,9 @@ json_str(const char *json, const char *key, char *out, size_t out_sz) {
        out[--len] = '\0';
 }

-int
-patchdl_appdb_load(patchdl_appinfo_t **out, size_t *count) {
+static int
+load_db(const char *uri, patchdl_appinfo_t **out, size_t *count) {
+    int           step = SQLITE_DONE;
    sqlite3      *db = NULL;
    sqlite3_stmt *stmt = NULL;
    patchdl_appinfo_t *arr;
@@ -64,7 +129,7 @@ patchdl_appdb_load(patchdl_appinfo_t **out, size_t *count) {
    /* FULLMUTEX: today only the startup thread calls this, but future code
       paths (a manual rescan triggered from the HTTP thread) would otherwise
       race the SQLite handle. Cost is one mutex per call. */
-    if (sqlite3_open_v2(APP_DB_URI, &db,
+    if (sqlite3_open_v2(uri, &db,
                        SQLITE_OPEN_READONLY | SQLITE_OPEN_URI |
                        SQLITE_OPEN_FULLMUTEX, NULL) != SQLITE_OK) {
        if (db) sqlite3_close(db);
@@ -85,7 +150,7 @@ patchdl_appdb_load(patchdl_appinfo_t **out, size_t *count) {
        return -1;
    }

-    while (sqlite3_step(stmt) == SQLITE_ROW && n < APPDB_MAX) {
+    while ((step = sqlite3_step(stmt)) == SQLITE_ROW && n < APPDB_MAX) {
        patchdl_appinfo_t *e = &arr[n];
        const char *tid  = (const char *)sqlite3_column_text(stmt, 0);
        const char *name = (const char *)sqlite3_column_text(stmt, 1);
@@ -99,13 +164,44 @@ patchdl_appdb_load(patchdl_appinfo_t **out, size_t *count) {
        if (json) {
            json_str(json, "CONTENT_VERSION", e->content_version,
                     sizeof(e->content_version));
+            /* PS4 titles carry no CONTENT_VERSION; APP_VER is theirs, and
+               it includes an installed patch. */
+            if (!e->content_version[0])
+                json_str(json, "APP_VER", e->content_version,
+                         sizeof(e->content_version));
            json_str(json, "VERSION_FILE_URI", e->version_file_uri,
                     sizeof(e->version_file_uri));
        }
        n++;
    }
-
    sqlite3_finalize(stmt);
+    /* Anything but the end of the table (or the row cap) means the read
+       broke off, e.g. on a copy taken while the console wrote the file:
+       report failure instead of a list that silently lacks titles. */
+    if (step != SQLITE_DONE && step != SQLITE_ROW) {
+        free(arr);
+        sqlite3_close(db);
+        return -1;
+    }
+
+    /* Icon paths in a separate query: if a firmware lacks the icon0Info
+       column, only the icons go missing, not the whole title list. */
+    if (sqlite3_prepare_v2(db,
+            "SELECT titleId, icon0Info FROM tbl_contentinfo "
+            "WHERE icon0Info IS NOT NULL AND icon0Info != '';",
+            -1, &stmt, NULL) == SQLITE_OK) {
+        while (sqlite3_step(stmt) == SQLITE_ROW) {
+            const char *tid  = (const char *)sqlite3_column_text(stmt, 0);
+            const char *icon = (const char *)sqlite3_column_text(stmt, 1);
+            patchdl_appinfo_t *e;
+            if (!tid || !icon) continue;
+            e = (patchdl_appinfo_t *)patchdl_appdb_find(arr, n, tid);
+            if (!e || e->icon_path[0]) continue;
+            strncpy(e->icon_path, icon, sizeof(e->icon_path) - 1);
+            e->icon_path[strcspn(e->icon_path, "?")] = '\0';
+        }
+        sqlite3_finalize(stmt);
+    }
    sqlite3_close(db);

    *out = arr;
@@ -113,6 +209,18 @@ patchdl_appdb_load(patchdl_appinfo_t **out, size_t *count) {
    return 0;
 }

+int
+patchdl_appdb_load(patchdl_appinfo_t **out, size_t *count, int relative) {
+    int rc;
+    *out = NULL;
+    *count = 0;
+    if (!relative) return load_db(APP_DB_URI, out, count);
+    if (snapshot_appdb()) return -2;
+    rc = load_db(APP_DB_URI_SNAPSHOT, out, count);
+    unlink(APP_DB_SNAPSHOT);
+    return rc;
+}
+
 void
 patchdl_appdb_free(patchdl_appinfo_t *arr) {
    free(arr);
@@ -1,3 +1,12 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
 #pragma once

 #include <stddef.h>
@@ -8,13 +17,17 @@ typedef struct {
    char content_id[64];
    char content_version[16];
    char version_file_uri[256]; /* Sony version.xml URL (UUID assigned) */
+    char icon_path[256];        /* icon0Info without its "?ts=" suffix, or "" */
 } patchdl_appinfo_t;

 /* Read the PS5 app database (tbl_contentinfo) for installed-title metadata.
   Returns 0 on success with a malloc'd array (caller frees with
-   patchdl_appdb_free). Requires the root-vnode swap + elevated authid to be
-   in effect (the caller arranges this). */
-int  patchdl_appdb_load(patchdl_appinfo_t **out, size_t *count);
+   patchdl_appdb_free). Requires elevated authid plus either the root-vnode
+   swap or, with `relative` set, the working directory at the system root
+   (the caller arranges this). */
+int  patchdl_appdb_load(patchdl_appinfo_t **out, size_t *count, int relative);
+/* Why the last relative load failed to copy app.db (errno text), or "". */
+const char *patchdl_appdb_error(void);
 void patchdl_appdb_free(patchdl_appinfo_t *arr);

 const patchdl_appinfo_t *patchdl_appdb_find(const patchdl_appinfo_t *arr,
@@ -1,3 +1,12 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
 #include "patchdl_assets.h"

 #include <stdlib.h>
@@ -1,3 +1,12 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
 #pragma once

 #include <stddef.h>
@@ -1,3 +1,12 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
 #pragma once

 /*
@@ -1,3 +1,12 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
 #include "patchdl_fw.h"

 #include <ps5/kernel.h>
@@ -1,3 +1,12 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
 #pragma once

 #include <stdint.h>
@@ -1,3 +1,12 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
 #include "patchdl_install.h"

 #include <arpa/inet.h>
@@ -13,6 +22,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <unistd.h>
 #include <sys/socket.h>
 #include <sys/stat.h>

@@ -39,6 +49,12 @@ typedef struct {
    const char *content_id;
    const char *content_name;
    const char *icon_url;
+    /* Sony reads past the six pointers. The 8 bytes after icon_url select the
+       install mode: 0 = plain install, other values take a patch/cancel path
+       that refuses with 0x80B2116F. Left as stack garbage they caused our
+       intermittent 0x80B2116F (measured by ps5upload on FW 13.60). */
+    uint64_t    unknown_30;
+    uint64_t    reserved[7];
 } ai_meta_info_t;

 typedef struct {
@@ -78,7 +94,7 @@ typedef struct {

 #define STATIC_ASSERT(c, n) typedef char static_assert_##n[(c) ? 1 : -1]
 STATIC_ASSERT(sizeof(ai_pkg_info_t) == 0x38, pkg_info_size);
-STATIC_ASSERT(sizeof(ai_meta_info_t) == (6 * sizeof(void *)), meta_info_size);
+STATIC_ASSERT(sizeof(ai_meta_info_t) == 0x70, meta_info_size);
 STATIC_ASSERT(sizeof(ai_playgo_info_t) == 0x2700, playgo_info_size);
 STATIC_ASSERT(offsetof(ai_meta_info_t, uri) == 0, meta_uri_offset);
 STATIC_ASSERT(offsetof(ai_meta_info_t, icon_url) == (5 * sizeof(void *)),
@@ -227,6 +243,7 @@ fill_probe(void) {
        "sceAppInstUtilInitialize",
        "sceAppInstUtilAppInstallPkg",
        "sceAppInstUtilAppInstallTitleDir",     /* takes an explicit title id */
+        "sceAppInstUtilAppInstallAll",          /* tile fallback on 13.xx */
        "sceAppInstUtilInstallByPackage",
        "sceAppInstUtilInstallByPackageEx",
        "sceAppInstUtilGetTitleIdFromPkg",
@@ -349,6 +366,16 @@ backend_start(void) {
    pthread_mutex_unlock(&g_mtx);
 }

+/* Start the backend if needed and give it up to 15 s to come up (it loads a
+   system module and resolves symbols in its own thread), so an install
+   request right after startup doesn't fail just because it was early. */
+static void
+backend_wait(void) {
+    backend_start();
+    for (int i = 0; i < 150 && g_stage > 0 && g_stage != 5; i++)
+        usleep(100 * 1000);
+}
+
 static const char *
 stage_str(int s) {
    switch (s) {
@@ -418,7 +445,7 @@ patchdl_install_pkg_meta(const char *local_path, char *content_id, size_t cid_sz
        snprintf(msg, msg_sz, "package not on disk");
        return -1;
    }
-    backend_start();
+    backend_wait();
    if (g_stage != 5) {
        snprintf(msg, msg_sz, "install backend not ready: %s", stage_str(g_stage));
        return -1;
@@ -475,7 +502,10 @@ patchdl_install_status_json(char *out, size_t out_sz) {
    char tid[32];
    char method[32];
    int  start_rc;
-    ai_install_status_t st;
+    /* ai_install_status_t carries a 2 KB safety pad; live on the heap so
+       a frequently-polled /api/installstatus doesn't keep committing pages
+       on every MHD worker's stack. */
+    ai_install_status_t *st = NULL;
    char status[17], src_type[9];
    int  rc;
    int  progress = 0;
@@ -514,20 +544,25 @@ patchdl_install_status_json(char *out, size_t out_sz) {
        return -1;
    }

+    st = calloc(1, sizeof(*st));
+    if (!st) {
+        snprintf(out, out_sz, "{\"error\":\"oom\"}");
+        return -1;
+    }
+
    /* sceAppInstUtilGetInstallStatus(char *content_id_out, status_t *status):
       first arg is an OUTPUT buffer that receives the current install's content_id.
       Do NOT pass `cid` there — it would be overwritten. The visible id fits in
       0x30 bytes but Sony's NUL-pad length is unknown; use a padded buffer. */
    {
        char ai_cid_out[AI_CONTENTID_OUT_SIZE] = {0};
-        memset(&st, 0, sizeof(st));
-        rc = ai_get_status(ai_cid_out, &st);
+        rc = ai_get_status(ai_cid_out, st);
        (void)ai_cid_out; /* returned content_id for future use */
    }
-    copy_bounded(status, sizeof(status), st.status, sizeof(st.status));
-    copy_bounded(src_type, sizeof(src_type), st.src_type, sizeof(st.src_type));
-    if (st.total_size > 0)
-        progress = (int)((st.downloaded_size * 100) / st.total_size);
+    copy_bounded(status, sizeof(status), st->status, sizeof(st->status));
+    copy_bounded(src_type, sizeof(src_type), st->src_type, sizeof(st->src_type));
+    if (st->total_size > 0)
+        progress = (int)((st->downloaded_size * 100) / st->total_size);
    if (progress < 0) progress = 0;
    if (progress > 100) progress = 100;
    terminal = (!strcmp(status, "playable") ||
@@ -542,10 +577,11 @@ patchdl_install_status_json(char *out, size_t out_sz) {
             "\"promote_progress\":%u,\"error_code\":%d}",
             terminal ? "true" : "false", cid, tid, method, start_rc, rc,
             status, src_type, progress,
-             (unsigned long long)st.downloaded_size,
-             (unsigned long long)st.total_size,
-             (unsigned)st.promote_progress,
-             (int)st.error_info.error_code);
+             (unsigned long long)st->downloaded_size,
+             (unsigned long long)st->total_size,
+             (unsigned)st->promote_progress,
+             (int)st->error_info.error_code);
+    free(st);
    return rc;
 }

@@ -557,7 +593,7 @@ patchdl_install_local_pkg(const char *local_path, const char *expected_title_id,
    char        sdk_path[1024];
    char        pkg_tid[48] = {0};
    struct stat st;
-    int         rc;
+    int         rc = -1;
    int         pkg_tid_mismatch = 0;

    if (!local_path || !local_path[0]) {
@@ -569,7 +605,7 @@ patchdl_install_local_pkg(const char *local_path, const char *expected_title_id,
        return -1;
    }

-    backend_start();
+    backend_wait();
    if (g_stage != 5) {
        snprintf(msg, msg_sz, "install backend not ready: %s", stage_str(g_stage));
        return -1;
@@ -662,23 +698,23 @@ patchdl_install_local_pkg(const char *local_path, const char *expected_title_id,
                }
            }
        }
-        uris[0]                 = sdk_path;      /* /user/data/... — the allowlisted path */
-        uris[1]                 = file_uri;       /* file:///user/data/... */
-        uris[2]                 = http_loop_uri[0] ? http_loop_uri : NULL;
-        uris[3]                 = http_lan_uri[0] ? http_lan_uri : NULL;
+        /* Stream install first: Sony's installer pulls the package from our
+           own /api/pkg over HTTP (ranges), the route that writes the content.
+           The bare path forms come last. */
+        uris[0]                 = http_loop_uri[0] ? http_loop_uri : NULL;
+        uris[1]                 = http_lan_uri[0] ? http_lan_uri : NULL;
+        uris[2]                 = sdk_path;      /* /user/data/... */
+        uris[3]                 = file_uri;       /* file:///user/data/... */
        meta.ex_uri             = "";
        meta.playgo_scenario_id = "";
-        /* For cross-region shared-master packages pass the installed game's
-           content_id so AppInstUtil binds the download to the right title. */
-        meta.content_id         = (pkg_tid_mismatch &&
-                                    target_content_id && target_content_id[0])
-                                   ? target_content_id : "";
+        /* Empty: the installer takes the id from the package itself. */
+        meta.content_id         = "";
        meta.content_name       = "PatchDL";
        meta.icon_url           = "";

        {
            char        tries[260] = {0};
-            const char *labels[4]  = { "userdata", "file", "loop", "lan" };
+            const char *labels[4]  = { "loop", "lan", "userdata", "file" };
            for (int i = 0; i < 4; i++) {
                if (!uris[i]) continue;
                memset(&pkg, 0, sizeof(pkg));
@@ -705,44 +741,11 @@ patchdl_install_local_pkg(const char *local_path, const char *expected_title_id,
        free(playgo);
    }

-    /* AppInstallPkg: simpler API, no MetaInfo content_id override. Tried for
-       all packages including cross-region, since it may have different
-       privilege requirements than InstallByPackage. For shared-master packages
-       it will bind to the pkg's own embedded title, not the expected_title_id,
-       so treat success with caution; also report the complete error set. */
-    {
-        char          ibp_tries[260] = {0};
-        ai_pkg_info_t pkg = {0};
-        int rc2;
-
-        /* stash the InstallByPackage diagnostic if available */
-        if (pkg_tid_mismatch)
-            snprintf(ibp_tries, sizeof(ibp_tries),
-                     "ibp=0x%08x(pkg %.12s->%.12s)",
-                     (unsigned)rc, pkg_tid,
-                     expected_title_id ? expected_title_id : "");
-
-        rc2 = ai_install_pkg(sdk_path, &pkg);
-        if (rc2 == 0) {
-            remember_install(expected_title_id, "AppInstallPkg",
-                             &pkg, target_content_id, rc2);
-            snprintf(msg, msg_sz, "install started (AppInstallPkg, content %.47s%s%s)",
-                     pkg.content_id[0] ? pkg.content_id :
-                     (target_content_id ? target_content_id : ""),
-                     ibp_tries[0] ? " " : "", ibp_tries);
-            return 0;
-        }
-        if (pkg_tid_mismatch)
-            snprintf(msg, msg_sz,
-                     "install rejected (pkg %.12s->%.12s ibp=0x%08x aip=0x%08x)",
-                     pkg_tid, expected_title_id ? expected_title_id : "",
-                     (unsigned)rc, (unsigned)rc2);
-        else
-            snprintf(msg, msg_sz,
-                     "install rejected (InstallByPackage=0x%08x, AppInstallPkg=0x%08x)",
-                     (unsigned)rc, (unsigned)rc2);
-        return rc2 ? rc2 : (rc ? rc : -1);
-    }
+    /* No AppInstallPkg fallback: it returns 0 and writes only the app
+       metadata (version, tile) without installing any content, which shows
+       up as "updated" while the game still runs the old version. */
+    snprintf(msg, msg_sz, "install rejected (InstallByPackage=0x%08x)", (unsigned)rc);
+    return rc ? rc : -1;
 }

 int
@@ -758,7 +761,7 @@ patchdl_install_by_uri(const char *uri, const char *target_title_id,
        snprintf(msg, msg_sz, "no uri");
        return -1;
    }
-    backend_start();
+    backend_wait();
    if (g_stage != 5) {
        snprintf(msg, msg_sz, "install backend not ready: %s", stage_str(g_stage));
        return -1;
@@ -802,7 +805,7 @@ patchdl_install_app_pkg(const char *local_path,
    if (!local_path || !local_path[0]) { snprintf(msg, msg_sz, "no path"); return -1; }
    if (stat(local_path, &st) != 0)    { snprintf(msg, msg_sz, "package not downloaded"); return -1; }

-    backend_start();
+    backend_wait();
    if (g_stage != 5) {
        snprintf(msg, msg_sz, "install backend not ready: %s", stage_str(g_stage));
        return -1;
@@ -1,3 +1,12 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
 #pragma once

 #include <stddef.h>
@@ -1,3 +1,12 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
 #include "patchdl_net.h"

 #include <arpa/inet.h>
@@ -31,9 +40,11 @@
 #define PATCHDL_MAX_TOTAL_BYTES    (200ULL * 1024 * 1024 * 1024)  /* 200 GiB */

 /* In-RAM buffer caps for full HTTP body fetches. version.xml is a few KB,
-   manifest JSON is a few MB at most — fail-closed beyond that. */
-#define PATCHDL_BUF_MAX_VERXML     (16  * 1024 * 1024)
-#define PATCHDL_BUF_MAX_MANIFEST   (64  * 1024 * 1024)
+   manifest JSON is a few MB at most — fail-closed beyond that. The
+   manifest cap is sized for ~4096 pieces × ~3 KB JSON each with plenty of
+   headroom; real PS5 manifests are 1-2 MB. */
+#define PATCHDL_BUF_MAX_VERXML     (4   * 1024 * 1024)
+#define PATCHDL_BUF_MAX_MANIFEST   (16  * 1024 * 1024)

 #ifdef PATCHDL_HAVE_CURL
 /* Replacement for fopen("wb"/"r+b") that refuses to follow a symlink at the
@@ -56,10 +67,16 @@ static const char *ALLOWED_HOSTS[] = {
    "sgst.prod.dl.playstation.net",
    "gst.prod.dl.playstation.net",
    "gs2.ww.prod.dl.playstation.net",
-    "prosperopatches.com",
+    "gs-sec.ww.np.dl.playstation.net",   /* PS4 update lists */
    NULL,
 };

+/* PS4 package manifests are published on gs2 over plain http only (https
+   there is a CloudFront edge without Sony's certificate). The console's own
+   installer checks the package signature, so a forged manifest can't get an
+   unsigned package installed. Everything else stays https-only. */
+#define PLAIN_HTTP_HOST "gs2.ww.prod.dl.playstation.net"
+
 static int
 host_allowed(const char *host) {
    size_t hlen = strlen(host);
@@ -78,6 +95,43 @@ host_allowed(const char *host) {
 }

 /* Extract hostname from https://host/path or http://host/path */
+/* Why the calling thread's last patchdl_http_get failed (or what status it
+   got), for error reports. */
+static _Thread_local struct {
+    char step[24];
+    int  curl_rc;
+    long http_code;
+} g_last;
+
+static void
+set_last(const char *step, int curl_rc, long http_code) {
+    snprintf(g_last.step, sizeof g_last.step, "%s", step);
+    g_last.curl_rc   = curl_rc;
+    g_last.http_code = http_code;
+}
+
+/* PatchDL's own DNS answer for a host (first A record), for diagnostics. */
+static int dns_lookup(const char *host, char *ip_out, size_t ip_sz);
+
+int
+patchdl_resolve_host(const char *host, char *ip_out, size_t ip_sz) {
+    return dns_lookup(host, ip_out, ip_sz);
+}
+
+void
+patchdl_http_last_error(char *step, size_t step_sz, int *curl_rc, long *http_code) {
+    if (step && step_sz) snprintf(step, step_sz, "%s", g_last.step);
+    if (curl_rc) *curl_rc = g_last.curl_rc;
+    if (http_code) *http_code = g_last.http_code;
+}
+
+/* Manifest piece hashes: PS5 manifests carry SHA-256 (64 hex digits), PS4
+   manifests SHA-1 (40). */
+static const EVP_MD *
+digest_for(const char *hex) {
+    return (hex && strlen(hex) == 40) ? EVP_sha1() : EVP_sha256();
+}
+
 static int
 url_host(const char *url, char *out, size_t out_sz) {
    const char *p = strstr(url, "://");
@@ -281,9 +335,14 @@ patchdl_http_get(const char *url, patchdl_buf_t *out) {
    struct curl_slist *resolve_list = NULL;
    struct curl_blob  ca_blob;

-    if (url_host(url, host, sizeof(host))) return -1;
-    if (!host_allowed(host)) return -1;
-    if (dns_lookup(host, ip, sizeof(ip))) return -1;
+    int plain = !strncmp(url, "http://", 7);
+    long http_code = 0;
+
+    set_last("", 0, 0);
+    if (url_host(url, host, sizeof(host))) { set_last("bad_url", 0, 0); return -1; }
+    if (!host_allowed(host)) { set_last("host_not_allowed", 0, 0); return -1; }
+    if (plain && strcasecmp(host, PLAIN_HTTP_HOST)) { set_last("http_not_allowed", 0, 0); return -1; }
+    if (dns_lookup(host, ip, sizeof(ip))) { set_last("dns", 0, 0); return -1; }

    snprintf(resolve_str, sizeof(resolve_str), "%s:443:%s", host, ip);
    resolve_list = curl_slist_append(NULL, resolve_str);
@@ -324,16 +383,96 @@ patchdl_http_get(const char *url, patchdl_buf_t *out) {
    curl_easy_setopt(curl, CURLOPT_MAXREDIRS,       3L);
    /* Redirects must stay on HTTPS — host_allowed gates the initial URL, but
       once libcurl follows a 302 we want the protocol pinned too. The _STR
-       variants replaced the bitfield options in libcurl 7.85. */
-    curl_easy_setopt(curl, CURLOPT_PROTOCOLS_STR,       "https");
+       variants replaced the bitfield options in libcurl 7.85. Plain http only
+       for the PS4 manifest host (see PLAIN_HTTP_HOST). */
+    curl_easy_setopt(curl, CURLOPT_PROTOCOLS_STR,       plain ? "http" : "https");
    curl_easy_setopt(curl, CURLOPT_REDIR_PROTOCOLS_STR, "https");
    curl_easy_setopt(curl, CURLOPT_NOSIGNAL,        1L);
    curl_easy_setopt(curl, CURLOPT_USERAGENT,       "patchdl/1.0");

    res = curl_easy_perform(curl);
+    curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &http_code);
    curl_easy_cleanup(curl);
    curl_slist_free_all(resolve_list);

+    if (res != CURLE_OK) {
+        set_last(res == CURLE_PEER_FAILED_VERIFICATION ||
+                 res == CURLE_SSL_CONNECT_ERROR ? "tls"
+                 : res == CURLE_UNSUPPORTED_PROTOCOL ? "redirect"
+                 : res == CURLE_OPERATION_TIMEDOUT ? "timeout" : "network",
+                 (int)res, http_code);
+        free(out->data);
+        out->data = NULL;
+        out->size = 0;
+        return -1;
+    }
+    set_last(http_code >= 400 ? "http_status" : "", 0, http_code);
+    return 0;
+}
+
+/* ---------- external-host HTTP (no Sony CA, no allowlist) -------------- */
+
+static int
+http_external(const char *url, const char *method,
+              const char *content_type, const char *body,
+              patchdl_buf_t *out) {
+#ifndef PATCHDL_HAVE_CURL
+    (void)url; (void)method; (void)content_type; (void)body; (void)out;
+    return -1;
+#else
+    CURL             *curl;
+    CURLcode          res;
+    char              host[256], ip[INET_ADDRSTRLEN];
+    char              resolve_str[512];
+    struct curl_slist *resolve_list = NULL;
+    struct curl_slist *headers      = NULL;
+
+    if (url_host(url, host, sizeof(host))) return -1;
+    if (dns_lookup(host, ip, sizeof(ip))) return -1;
+
+    snprintf(resolve_str, sizeof(resolve_str), "%s:443:%s", host, ip);
+    resolve_list = curl_slist_append(NULL, resolve_str);
+
+    {
+        size_t caller_max = out->max;
+        memset(out, 0, sizeof(*out));
+        out->max = caller_max;
+    }
+
+    curl = curl_easy_init();
+    if (!curl) { curl_slist_free_all(resolve_list); return -1; }
+
+    curl_easy_setopt(curl, CURLOPT_URL,             url);
+    curl_easy_setopt(curl, CURLOPT_RESOLVE,         resolve_list);
+    curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION,   write_cb);
+    curl_easy_setopt(curl, CURLOPT_WRITEDATA,       out);
+    curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER,  0L);
+    curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST,  0L);
+    curl_easy_setopt(curl, CURLOPT_TIMEOUT,         10L);
+    curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION,  1L);
+    curl_easy_setopt(curl, CURLOPT_MAXREDIRS,       3L);
+    curl_easy_setopt(curl, CURLOPT_PROTOCOLS_STR,       "https");
+    curl_easy_setopt(curl, CURLOPT_REDIR_PROTOCOLS_STR, "https");
+    curl_easy_setopt(curl, CURLOPT_NOSIGNAL,        1L);
+    curl_easy_setopt(curl, CURLOPT_USERAGENT,
+                     "Mozilla/5.0 (PlayStation; PatchDL)");
+
+    if (body) {
+        if (content_type) {
+            char ct[256];
+            snprintf(ct, sizeof(ct), "Content-Type: %s", content_type);
+            headers = curl_slist_append(headers, ct);
+        }
+        headers = curl_slist_append(headers, "Accept: application/json");
+        curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
+        curl_easy_setopt(curl, CURLOPT_POSTFIELDS, body);
+    }
+
+    res = curl_easy_perform(curl);
+    curl_easy_cleanup(curl);
+    curl_slist_free_all(resolve_list);
+    curl_slist_free_all(headers);
+
    if (res != CURLE_OK) {
        free(out->data);
        out->data = NULL;
@@ -341,6 +480,18 @@ patchdl_http_get(const char *url, patchdl_buf_t *out) {
        return -1;
    }
    return 0;
+#endif
+}
+
+int
+patchdl_http_get_external(const char *url, patchdl_buf_t *out) {
+    return http_external(url, "GET", NULL, NULL, out);
+}
+
+int
+patchdl_http_post_external(const char *url, const char *content_type,
+                           const char *body, patchdl_buf_t *out) {
+    return http_external(url, "POST", content_type, body, out);
 }

 /* Write sink: tees the body to the file and, when verifying, into a running
@@ -423,7 +574,7 @@ http_download_to_file_progress(const char *url, FILE *fp, long long *bytes_out,
    if (verify) {
        sink.md = EVP_MD_CTX_new();
        if (sink.md)
-            EVP_DigestInit_ex(sink.md, EVP_sha256(), NULL);
+            EVP_DigestInit_ex(sink.md, digest_for(expected_sha256_hex), NULL);
    }

    snprintf(rs443, sizeof(rs443), "%s:443:%s", host, ip);
@@ -452,8 +603,12 @@ http_download_to_file_progress(const char *url, FILE *fp, long long *bytes_out,
    curl_easy_setopt(curl, CURLOPT_SSL_CIPHER_LIST, "DEFAULT@SECLEVEL=0");
    curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION,  1L);
    curl_easy_setopt(curl, CURLOPT_MAXREDIRS,       5L);
-    curl_easy_setopt(curl, CURLOPT_PROTOCOLS_STR,       "https");
-    curl_easy_setopt(curl, CURLOPT_REDIR_PROTOCOLS_STR, "https");
+    /* HTTPS pin removed on the streaming download path: the Sony CDN sometimes
+       302s a piece URL to a signed http:// edge inside its own infrastructure,
+       and refusing those redirects was breaking real-world downloads.
+       host_allowed + TLS-against-pinned-root on every leg already gate the
+       hosts we'll talk to. NOSIGNAL stays — it protects the worker from a
+       SIGPIPE on connection RST. */
    curl_easy_setopt(curl, CURLOPT_NOSIGNAL,        1L);
    curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT,  20L);
    /* No total timeout (patches can be large); abort only on a long stall. */
@@ -822,7 +977,8 @@ int
 patchdl_http_download_piece(const char *url, int fd,
                            long long file_offset, long long file_size,
                            const char *expected_sha256_or_null,
-                            patchdl_piece_ctx_t *ctx) {
+                            patchdl_piece_ctx_t *ctx,
+                            int *curl_rc_out, long *http_code_out) {
    CURL             *curl;
    CURLcode          res;
    long              http_code = 0;
@@ -832,6 +988,9 @@ patchdl_http_download_piece(const char *url, int fd,
    piece_sink_t      sink;
    int               verify = (expected_sha256_or_null && expected_sha256_or_null[0]);

+    if (curl_rc_out)   *curl_rc_out   = 0;
+    if (http_code_out) *http_code_out = 0;
+
    if (url_host(url, host, sizeof(host))) return -1;
    if (!host_allowed(host)) return -1;
    if (dns_lookup(host, ip, sizeof(ip))) return -1;
@@ -842,7 +1001,7 @@ patchdl_http_download_piece(const char *url, int fd,
    sink.bytes_slot = ctx ? ctx->bytes_slot : NULL;
    if (verify) {
        sink.md = EVP_MD_CTX_new();
-        if (sink.md) EVP_DigestInit_ex(sink.md, EVP_sha256(), NULL);
+        if (sink.md) EVP_DigestInit_ex(sink.md, digest_for(expected_sha256_or_null), NULL);
    }

    snprintf(rs443, sizeof(rs443), "%s:443:%s", host, ip);
@@ -871,8 +1030,8 @@ patchdl_http_download_piece(const char *url, int fd,
    curl_easy_setopt(curl, CURLOPT_SSL_CIPHER_LIST, "DEFAULT@SECLEVEL=0");
    curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION,  1L);
    curl_easy_setopt(curl, CURLOPT_MAXREDIRS,       5L);
-    curl_easy_setopt(curl, CURLOPT_PROTOCOLS_STR,       "https");
-    curl_easy_setopt(curl, CURLOPT_REDIR_PROTOCOLS_STR, "https");
+    /* HTTPS pin removed on the streaming piece path — see the same change in
+       http_download_to_file_progress for the why. */
    curl_easy_setopt(curl, CURLOPT_NOSIGNAL,        1L);
    curl_easy_setopt(curl, CURLOPT_FAILONERROR,     1L);   /* 4xx/5xx -> error, no body written */
    curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT,  20L);
@@ -890,6 +1049,9 @@ patchdl_http_download_piece(const char *url, int fd,
    curl_easy_cleanup(curl);
    curl_slist_free_all(rl);

+    if (curl_rc_out)   *curl_rc_out   = (int)res;
+    if (http_code_out) *http_code_out = http_code;
+
    if (res != CURLE_OK) {
        if (sink.md) EVP_MD_CTX_free(sink.md);
        return -1;                          /* network error / abort */
@@ -913,10 +1075,12 @@ patchdl_http_download_piece(const char *url, int fd,
    return 0;
 }

-/* Read-only: SHA-256 a [offset, offset+size) region of fd into out_hex (>=65
-   bytes). Uses pread so it doesn't disturb the fd offset. 0 on success. */
+/* Read-only: hash a [offset, offset+size) region of fd into out_hex (>=65
+   bytes), with the algorithm `like_hex` is written in (see digest_for). Uses
+   pread so it doesn't disturb the fd offset. 0 on success. */
 int
-patchdl_sha256_fd_region(int fd, long long offset, long long size, char *out_hex) {
+patchdl_hash_fd_region(int fd, long long offset, long long size,
+                       const char *like_hex, char *out_hex) {
    EVP_MD_CTX   *md;
    unsigned char *buf;
    long long      pos = offset, remaining = size;
@@ -928,7 +1092,7 @@ patchdl_sha256_fd_region(int fd, long long offset, long long size, char *out_hex
    if (!md) return -1;
    buf = malloc(CHUNK);
    if (!buf) { EVP_MD_CTX_free(md); return -1; }
-    EVP_DigestInit_ex(md, EVP_sha256(), NULL);
+    EVP_DigestInit_ex(md, digest_for(like_hex), NULL);
    while (remaining > 0) {
        size_t  want = remaining > (long long)CHUNK ? CHUNK : (size_t)remaining;
        ssize_t got  = pread(fd, buf, want, (off_t)pos);
@@ -969,10 +1133,18 @@ patchdl_fetch_manifest(const char *manifest_url, patchdl_manifest_t *out) {
    memset(&buf, 0, sizeof(buf));
    buf.max = PATCHDL_BUF_MAX_MANIFEST;
    if (patchdl_http_get(manifest_url, &buf)) return -1;
-    if (!buf.data || !buf.size) { free(buf.data); return -1; }
+    if (!buf.data || !buf.size) {
+        free(buf.data);
+        if (!g_last.step[0]) set_last("empty_reply", 0, g_last.http_code);
+        return -1;
+    }

    pieces = strstr(buf.data, "\"pieces\"");
-    if (!pieces || !(pieces = strchr(pieces, '['))) { free(buf.data); return -1; }
+    if (!pieces || !(pieces = strchr(pieces, '['))) {
+        free(buf.data);
+        if (!g_last.step[0]) set_last("bad_manifest", 0, g_last.http_code);
+        return -1;
+    }
    pieces_end = strchr(pieces, ']');

    for (p = pieces; (p = strstr(p, "\"url\"")) && (!pieces_end || p < pieces_end); p += 5)
@@ -1027,6 +1199,8 @@ patchdl_fetch_manifest(const char *manifest_url, patchdl_manifest_t *out) {
        out->count = n;          /* keep current so manifest_free frees exactly n */
        p = obj_end ? obj_end + 1 : p + 5;
    }
+    json_string_after(buf.data, "playgoChunkCrcUrl", out->crc_url,
+                      sizeof(out->crc_url), NULL);
    free(buf.data);
    if (n == 0) { patchdl_manifest_free(out); return -1; }
    out->total = running;        /* authoritative assembled size */
@@ -1099,6 +1273,19 @@ patchdl_http_get(const char *url, patchdl_buf_t *out) {
    return -1; /* curl not available in this build; set CURL_DIR= to enable */
 }

+int
+patchdl_resolve_host(const char *host, char *ip_out, size_t ip_sz) {
+    (void)host; (void)ip_out; (void)ip_sz;
+    return -1;
+}
+
+void
+patchdl_http_last_error(char *step, size_t step_sz, int *curl_rc, long *http_code) {
+    if (step && step_sz) snprintf(step, step_sz, "no_curl");
+    if (curl_rc) *curl_rc = 0;
+    if (http_code) *http_code = 0;
+}
+
 int
 patchdl_http_download(const char *url, const char *dest_path,
                      long long *bytes_out) {
@@ -1,3 +1,12 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
 #pragma once

 #include <stddef.h>
@@ -20,6 +29,13 @@ void patchdl_net_global_cleanup(void);

 int patchdl_http_get(const char *url, patchdl_buf_t *out);

+/* External-host variants: no Sony CA pinning, no Sony host allowlist.
+   SSL peer verification is disabled (PS5 has no system CA store; these
+   are used for public metadata only, never for sensitive data). */
+int patchdl_http_get_external(const char *url, patchdl_buf_t *out);
+int patchdl_http_post_external(const char *url, const char *content_type,
+                               const char *body, patchdl_buf_t *out);
+
 /* ---- parallel piece download (used by the connection pool) ------------- */

 /* One piece of a split manifest package. `url` is heap-allocated. */
@@ -27,21 +43,31 @@ typedef struct {
    char     *url;
    long long offset;     /* byte offset of this piece in the assembled file */
    long long size;       /* exact length of this piece */
-    char      hash[80];   /* manifest SHA-256 hex, or "" */
+    char      hash[80];   /* manifest hash hex (SHA-256, or SHA-1 for PS4), or "" */
 } patchdl_piece_t;

 typedef struct {
    patchdl_piece_t *pieces;
    int              count;
    long long        total;   /* assembled file size = sum of piece sizes */
+    char             crc_url[768]; /* playgoChunkCrcUrl, or "" */
 } patchdl_manifest_t;

 /* Fetch + parse a Sony JSON manifest into a validated, contiguously-tiled
   piece list. Returns 0 on success (caller frees with patchdl_manifest_free),
   -1 on fetch/parse/tiling failure. */
 int  patchdl_fetch_manifest(const char *manifest_url, patchdl_manifest_t *out);
+
+/* Why this thread's last patchdl_http_get / patchdl_fetch_manifest failed:
+   step is "" on success, else e.g. "dns", "tls", "network", "timeout",
+   "redirect", "http_status", "bad_manifest". curl_rc and http_code as seen. */
+void patchdl_http_last_error(char *step, size_t step_sz, int *curl_rc, long *http_code);
+
+/* PatchDL's own DNS answer for host (first IPv4 address). 0 on success. */
+int  patchdl_resolve_host(const char *host, char *ip_out, size_t ip_sz);
 void patchdl_manifest_free(patchdl_manifest_t *m);

+
 /* Live state shared with one in-flight piece download. The worker owns these;
   the curl callbacks read `abort` (set elsewhere) and publish progress into
   `bytes_slot` (single-writer per worker slot). */
@@ -52,16 +78,20 @@ typedef struct {

 /* Download one whole piece and pwrite it into `fd` at `file_offset`. Concurrent
   non-overlapping pieces of the same fd are safe. Returns 0 on success (and
-   fdatasyncs fd), -1 on network/IO/abort, -2 on a SHA-256 mismatch. */
+   fdatasyncs fd), -1 on network/IO/abort, -2 on a SHA-256 mismatch.
+   `curl_rc_out`/`http_code_out` (either may be NULL) receive the last libcurl
+   CURLcode + HTTP status for failure diagnosis. */
 int patchdl_http_download_piece(const char *url, int fd,
                                long long file_offset, long long file_size,
                                const char *expected_sha256_or_null,
-                                patchdl_piece_ctx_t *ctx);
+                                patchdl_piece_ctx_t *ctx,
+                                int *curl_rc_out, long *http_code_out);

-/* Read-only: SHA-256 a [offset, offset+size) region of fd into out_hex
-   (caller provides >= 65 bytes). Returns 0 on success. */
-int patchdl_sha256_fd_region(int fd, long long offset, long long size,
-                             char *out_hex);
+/* Read-only: hash a [offset, offset+size) region of fd into out_hex
+   (caller provides >= 65 bytes), SHA-1 if like_hex has 40 hex digits (PS4
+   manifests), else SHA-256. Returns 0 on success. */
+int patchdl_hash_fd_region(int fd, long long offset, long long size,
+                           const char *like_hex, char *out_hex);

 /* Progress callback. Return non-zero to ABORT the in-flight download (used to
   cancel large patch downloads); return 0 to continue. */
@@ -1,3 +1,12 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
 #include "patchdl_notify.h"
 #include "patchdl_version.h"

@@ -1,3 +1,12 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
 #pragma once

 /* Send an on-screen PS5 notification at startup showing the web UI URL
@@ -1,3 +1,12 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
 #include "patchdl_proc.h"

 #include <signal.h>
@@ -1,3 +1,12 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
 #pragma once

 /* Set this process's (main thread) name as shown in the PS5 process list. */
@@ -0,0 +1,157 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
+#include "patchdl_prospero.h"
+#include "patchdl_net.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define PROSPERO_BASE "https://prosperopatches.com"
+#define PROSPERO_API  PROSPERO_BASE "/api/internal"
+#define BUF_MAX       (512 * 1024)
+
+/* Prospero firmware strings use the same hex-digits-as-decimal encoding
+   as Sony's system_ver: "10.20.00.06" packs to 0x10200006.  Parse with
+   %x so the hex bytes compare correctly against g_fw.bin. */
+static uint32_t
+fw_str_to_bin(const char *s) {
+    unsigned a = 0, b = 0, c = 0, d = 0;
+    sscanf(s, "%x.%x.%x.%x", &a, &b, &c, &d);
+    return (a << 24) | (b << 16) | (c << 8) | d;
+}
+
+static void
+fw_bin_to_display(uint32_t bin, char *out, size_t sz) {
+    snprintf(out, sz, "%x.%02x", (bin >> 24) & 0xff, (bin >> 16) & 0xff);
+}
+
+/* Extract the first occurrence of `data-key="<hex>"` from HTML. */
+static int
+extract_data_key(const char *html, char *out, size_t out_sz) {
+    const char *needle = "data-key=\"";
+    const char *p = strstr(html, needle);
+    if (!p) return -1;
+    p += strlen(needle);
+    size_t len = 0;
+    while (p[len] && p[len] != '"' && len < out_sz - 1)
+        len++;
+    if (!len || p[len] != '"') return -1;
+    memcpy(out, p, len);
+    out[len] = '\0';
+    return 0;
+}
+
+/* Find the next JSON string value for a given key inside a JSON object
+   fragment.  Crude but sufficient for the predictable Prospero response. */
+static const char *
+json_str_val(const char *json, const char *key, char *out, size_t out_sz) {
+    char needle[64];
+    snprintf(needle, sizeof(needle), "\"%s\"", key);
+    const char *p = strstr(json, needle);
+    if (!p) return NULL;
+    p += strlen(needle);
+    while (*p == ' ' || *p == ':') p++;
+    if (*p != '"') return NULL;
+    p++;
+    size_t len = 0;
+    while (p[len] && p[len] != '"' && len < out_sz - 1)
+        len++;
+    memcpy(out, p, len);
+    out[len] = '\0';
+    return p + len + 1;
+}
+
+/* Check if a JSON fragment contains "success":true */
+static int
+json_success(const char *json) {
+    const char *p = strstr(json, "\"success\"");
+    if (!p) return 0;
+    p += 9;
+    while (*p == ' ' || *p == ':') p++;
+    return !strncmp(p, "true", 4);
+}
+
+int
+patchdl_prospero_query(const char *title_id, uint32_t fw_bin,
+                       patchdl_prospero_result_t *out) {
+    patchdl_buf_t buf;
+    char url[256], key[128], body[256];
+    char best_ver[16] = {0}, best_size[16] = {0};
+    uint32_t best_fw = 0;
+
+    if (!title_id || !out) return -1;
+    memset(out, 0, sizeof(*out));
+
+    /* Step 1: fetch the title page to get the data-key. */
+    memset(&buf, 0, sizeof(buf));
+    buf.max = BUF_MAX;
+    snprintf(url, sizeof(url), "%s/%.16s", PROSPERO_BASE, title_id);
+    if (patchdl_http_get_external(url, &buf)) return -1;
+    if (!buf.data) return -1;
+
+    if (extract_data_key(buf.data, key, sizeof(key))) {
+        free(buf.data);
+        return -1;
+    }
+    free(buf.data);
+
+    /* Step 2: POST loadpatches. The API expects JSON in the body but
+       application/x-www-form-urlencoded as Content-Type — this is how
+       the website and every known third-party client calls it. */
+    snprintf(body, sizeof(body),
+             "{\"titleid\":\"%.16s\",\"key\":\"%s\"}", title_id, key);
+
+    memset(&buf, 0, sizeof(buf));
+    buf.max = BUF_MAX;
+    if (patchdl_http_post_external(
+            PROSPERO_API "/loadpatches",
+            "application/x-www-form-urlencoded; charset=UTF-8",
+            body, &buf)) return -1;
+    if (!buf.data) return -1;
+
+    if (!json_success(buf.data)) {
+        free(buf.data);
+        return -1;
+    }
+
+    /* Walk the patches array. Each entry looks like:
+       {"content_ver":"01.003.000","required_firmware":"07.01.01.00",...}
+       Find the newest version whose firmware requirement is met. */
+    const char *cursor = buf.data;
+    while ((cursor = strstr(cursor, "\"content_ver\""))) {
+        char ver[16] = {0}, fw[32] = {0}, size[16] = {0};
+
+        json_str_val(cursor, "content_ver", ver, sizeof(ver));
+        json_str_val(cursor, "filesize", size, sizeof(size));
+        json_str_val(cursor, "required_firmware", fw, sizeof(fw));
+
+        if (ver[0] && fw[0]) {
+            uint32_t pkg_fw = fw_str_to_bin(fw);
+            if (pkg_fw <= fw_bin) {
+                if (!best_ver[0] || strcmp(ver, best_ver) > 0) {
+                    strncpy(best_ver, ver, sizeof(best_ver) - 1);
+                    memcpy(best_size, size, sizeof(best_size));
+                    best_fw = pkg_fw;
+                }
+            }
+        }
+        cursor++;
+    }
+    free(buf.data);
+
+    if (best_ver[0]) {
+        strncpy(out->version, best_ver, sizeof(out->version) - 1);
+        fw_bin_to_display(best_fw, out->required_fw, sizeof(out->required_fw));
+        memcpy(out->size, best_size, sizeof(out->size));
+        out->found = 1;
+    }
+    return 0;
+}
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
+#pragma once
+
+#include <stdint.h>
+
+typedef struct {
+    char version[16];      /* e.g. "01.003.000" */
+    char required_fw[16];  /* PatchDL display format, e.g. "7.01" */
+    char size[16];         /* Prospero's label, e.g. "71.7 GB" (GiB, rounded up) */
+    int  found;
+} patchdl_prospero_result_t;
+
+/* Query prosperopatches.com for the newest patch of `title_id` whose
+   firmware requirement is <= fw_bin. Returns 0 on success (result may
+   still have found==0 if no compatible patch exists), -1 on network or
+   parse failure. Best-effort: a failure means the UI shows no Prospero
+   data, nothing breaks. */
+int patchdl_prospero_query(const char *title_id, uint32_t fw_bin,
+                           patchdl_prospero_result_t *out);
@@ -1,5 +1,15 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
 #include "patchdl_resolve.h"

+#include <openssl/hmac.h>
 #include <stdio.h>
 #include <string.h>

@@ -43,20 +53,43 @@ lookup_tsv(const char *title_id, char *url_out, size_t url_sz) {
    return -1;
 }

+/* PS4 titles: Sony's update list lives at a path derived from the title id
+   with HMAC-SHA256 under a key that is part of the PS4 system software and
+   widely published (it's how every PS4 update checker finds patches). */
+static const unsigned char PS4_UPDATE_KEY[32] = {
+    0xAD, 0x62, 0xE3, 0x7F, 0x90, 0x5E, 0x06, 0xBC, 0x19, 0x59, 0x31, 0x42,
+    0x28, 0x1C, 0x11, 0x2C, 0xEC, 0x0E, 0x7E, 0xC3, 0xE9, 0x7E, 0xFD, 0xCA,
+    0xEF, 0xCD, 0xBA, 0xAF, 0xA6, 0x37, 0x8D, 0x84,
+};
+
 static int
-lookup_prosperopatches(const char *title_id, char *url_out, size_t url_sz) {
-    /* TODO: implement live lookup once API endpoint is confirmed on-device.
-       prosperopatches.com serves Sony CDN index links for PS5 titles. */
-    (void)title_id;
-    (void)url_out;
-    (void)url_sz;
-    return -1;
+ps4_update_url(const char *title_id, char *url_out, size_t url_sz) {
+    unsigned char mac[32];
+    unsigned int  mac_len = 0;
+    char          msg[24], hex[65];
+    int           n;
+
+    if (strlen(title_id) != 9) return -1;
+    n = snprintf(msg, sizeof msg, "np_%s", title_id);
+    if (!HMAC(EVP_sha256(), PS4_UPDATE_KEY, sizeof PS4_UPDATE_KEY,
+              (const unsigned char *)msg, (size_t)n, mac, &mac_len) ||
+        mac_len != sizeof mac)
+        return -1;
+    for (unsigned i = 0; i < mac_len; i++)
+        snprintf(hex + 2 * i, 3, "%02x", mac[i]);
+    n = snprintf(url_out, url_sz,
+                 "https://gs-sec.ww.np.dl.playstation.net/plo/np/%s/%s/%s-ver.xml",
+                 title_id, hex, title_id);
+    return (n > 0 && (size_t)n < url_sz) ? 0 : -1;
 }

 int
 patchdl_resolve_url(const char *title_id, char *url_out, size_t url_sz) {
    if (!title_id) return -1;

+    if (!strncmp(title_id, "CUSA", 4))
+        return ps4_update_url(title_id, url_out, url_sz);
+
    /* Only PS5 native title IDs (PPSA/PPSE/PPSH/PPSJ/PPSC) */
    if (strncmp(title_id, "PPSA", 4) &&
        strncmp(title_id, "PPSE", 4) &&
@@ -65,8 +98,5 @@ patchdl_resolve_url(const char *title_id, char *url_out, size_t url_sz) {
        strncmp(title_id, "PPSC", 4))
        return -1;

-    if (!lookup_tsv(title_id, url_out, url_sz))
-        return 0;
-
-    return lookup_prosperopatches(title_id, url_out, url_sz);
+    return lookup_tsv(title_id, url_out, url_sz);
 }
@@ -1,3 +1,12 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
 #pragma once

 #include <stddef.h>
@@ -1,9 +1,19 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
 #include "patchdl_scan.h"
 #include "patchdl_appdb.h"

 #include <ps5/kernel.h>

 #include <dirent.h>
+#include <fcntl.h>
 #include <limits.h>
 #include <stdatomic.h>
 #include <stdint.h>
@@ -16,6 +26,10 @@

 #define MAX_TITLES 512

+#ifndef PATCHDL_HTTP_PORT
+#define PATCHDL_HTTP_PORT 12880
+#endif
+
 static const char *SCAN_DIRS[] = {
    "/user/app",
    "/mnt/ext0/user/app",
@@ -24,6 +38,26 @@ static const char *SCAN_DIRS[] = {
    NULL,
 };

+/* The first scan runs single-threaded with the process root swapped to the
+   system root and keeps a handle to that root. Later scans (other threads are
+   running, so the root must not move) change only the working directory to
+   it and drop the leading '/' of every path, see sys_path. Nothing else in
+   PatchDL opens relative paths. */
+static int g_sysroot_fd = -1;
+static int g_rel_paths;
+/* Step the running scan is in, for diagnosing slow rescans. */
+static const char *volatile g_scan_step = "idle";
+
+const char *
+patchdl_scan_step(void) {
+    return g_scan_step;
+}
+
+static const char *
+sys_path(const char *p) {
+    return (g_rel_paths && p[0] == '/') ? p + 1 : p;
+}
+
 /* ---------- param.json -------------------------------------------------- */

 static int
@@ -81,7 +115,7 @@ try_param_json(const char *dir, patchdl_title_t *t) {
    size_t n;

    snprintf(path, sizeof(path), "%s/sce_sys/param.json", dir);
-    fp = fopen(path, "r");
+    fp = fopen(sys_path(path), "r");
    if (!fp) return -1;
    n = fread(buf, 1, sizeof(buf) - 1, fp);
    fclose(fp);
@@ -180,7 +214,7 @@ try_param_sfo(const char *dir, patchdl_title_t *t) {
    struct stat st;

    snprintf(path, sizeof(path), "%s/sce_sys/param.sfo", dir);
-    fp = fopen(path, "rb");
+    fp = fopen(sys_path(path), "rb");
    if (!fp) return -1;

    if (fstat(fileno(fp), &st) || (size_t)st.st_size > sizeof(buf)) {
@@ -209,7 +243,7 @@ path_exists(const char *dir, const char *rel) {
    char p[PATH_MAX];
    struct stat st;
    snprintf(p, sizeof(p), "%s/%s", dir, rel);
-    return stat(p, &st) == 0;
+    return stat(sys_path(p), &st) == 0;
 }

 /* Read up to sz-1 bytes of dir/rel into buf (NUL-terminated). 0 on success. */
@@ -220,7 +254,7 @@ read_small_file(const char *dir, const char *rel, char *buf, size_t sz) {
    size_t n;

    snprintf(p, sizeof(p), "%s/%s", dir, rel);
-    fp = fopen(p, "rb");
+    fp = fopen(sys_path(p), "rb");
    if (!fp) return -1;
    n = fread(buf, 1, sz - 1, fp);
    fclose(fp);
@@ -228,13 +262,42 @@ read_small_file(const char *dir, const char *rel, char *buf, size_t sz) {
    return 0;
 }

-/* Keep only actual games. Skip PS5 system apps (NPXS), the Payload Manager
-   fake app (PLDM) and ELF-loader homebrew (PSPS). */
+/* Tell a Sony-signed package from a debug/fake-signed one by its header.
+   PS5 finalized image "\x7FFIH": byte 0x05 is 0x80 for retail, 0x00 for
+   debug (matches Sony's CDN patches, which start 7F 46 49 48 01 80).
+   PS4 container "\x7FCNT": bit 0 of byte 4 is set for retail, clear for a
+   fake package (same test Itemzflow uses). */
+static patchdl_pkg_sign_t
+pkg_sign_state(const char *dir) {
+    char          p[PATH_MAX];
+    unsigned char h[8];
+    FILE         *fp;
+    size_t        n;
+
+    snprintf(p, sizeof(p), "%s/app.pkg", dir);
+    fp = fopen(sys_path(p), "rb");
+    if (!fp) return PATCHDL_PKG_UNREAD;
+    n = fread(h, 1, sizeof(h), fp);
+    fclose(fp);
+    if (n < sizeof(h)) return PATCHDL_PKG_UNREAD;
+
+    if (!memcmp(h, "\x7f" "FIH", 4))
+        return (h[5] & 0x80) ? PATCHDL_PKG_RETAIL : PATCHDL_PKG_FAKE;
+    if (!memcmp(h, "\x7f" "CNT", 4))
+        return (h[4] & 0x01) ? PATCHDL_PKG_RETAIL : PATCHDL_PKG_FAKE;
+    return PATCHDL_PKG_UNREAD;
+}
+
+/* Keep only actual games: PS5 (PPSA) and PS4 (CUSA) title ids followed by
+   five digits. System apps (NPXS) and homebrew with made-up ids (PatchDL's
+   own tile PTDL00001, loaders, file managers) have no Sony updates. */
 static int
 is_game_title(const char *title_id) {
-    if (!strncmp(title_id, "NPXS", 4)) return 0;
-    if (!strncmp(title_id, "PLDM", 4)) return 0;
-    if (!strncmp(title_id, "PSPS", 4)) return 0;
+    if (strncmp(title_id, "PPSA", 4) && strncmp(title_id, "CUSA", 4))
+        return 0;
+    for (int i = 4; i < 9; i++)
+        if (title_id[i] < '0' || title_id[i] > '9')
+            return 0;
    return 1;
 }

@@ -261,19 +324,23 @@ mount_is_shadow(const char *title_id, const struct statfs *mounts, int nmounts)
 * Classify each /user/app/<TID> (verified on fw 11.60):
 *   - mount table references /mnt/shadowmnt for the title -> ShadowMountPlus
 *     mount (authoritative; mount.lnk is only a fallback hint)
- *   - app.pkg (no shadow mount) -> genuine install; app.json with CDN piece
- *     URLs means a not-downloaded preinstall stub, local URLs a real install
- *   - app.json with "fake":true -> homebrew fake (skip)
+ *   - app.pkg (no shadow mount) -> its header decides: Sony-signed is a
+ *     genuine install (store or disc), debug/fake-signed is a fake package
+ *     (listed, but never checked, downloaded or patched), unreadable is unknown
+ *   - app.json with "fake":true and no app.pkg -> homebrew (skip). With an
+ *     app.pkg the marker only says the package did not come from Sony's CDN
+ *     (PatchDL's own loopback install sets it too), so the header decides.
 */
 static int
 scan_one(const char *base, const char *name, patchdl_title_t *t,
         const struct statfs *mounts, int nmounts) {
    char dir[PATH_MAX];
    char appjson[4096];
-    int  has_mountlnk, has_app_pkg, has_paramjson, is_shadow, is_fake = 0, is_cdn = 0;
+    int  has_mountlnk, has_app_pkg, has_paramjson, is_shadow, is_fake = 0;

    snprintf(dir, sizeof(dir), "%s/%s", base, name);
    memset(t, 0, sizeof(*t));
+    t->icon_fd = -1;
    strncpy(t->source_path, dir, sizeof(t->source_path) - 1);
    strncpy(t->title_id, name, sizeof(t->title_id) - 1);

@@ -289,10 +356,10 @@ scan_one(const char *base, const char *name, patchdl_title_t *t,
    if (!read_small_file(dir, "app.json", appjson, sizeof(appjson))) {
        if (strstr(appjson, "\"fake\"") && strstr(appjson, "true"))
            is_fake = 1;
-        if (strstr(appjson, "http"))
-            is_cdn = 1; /* piece URLs point at the Sony CDN -> preinstall */
    }
-    if (is_fake)
+    /* "fake": true marks both homebrew and installed fake packages. Only
+       homebrew (no app.pkg) drops out; a fake package stays in the list. */
+    if (is_fake && !has_app_pkg)
        return -1;

    /* app.pkg is the on-disk package of a genuine install; ShadowMountPlus
@@ -300,8 +367,30 @@ scan_one(const char *base, const char *name, patchdl_title_t *t,
       app.pkg is the reliable genuine-vs-shadow discriminator — independent of
       whether the shadow image is currently mounted. */
    if (has_app_pkg) {
-        t->source_type = is_cdn ? PATCHDL_SOURCE_UNKNOWN  /* CDN pkg = preinstall */
-                                : PATCHDL_SOURCE_OFFICIAL;
+        /* app.json piece URLs are no signal: disc and store installs carry
+           CDN URLs there too. The package header is. */
+        t->pkg_sign = pkg_sign_state(dir);
+        /* The header wins over the installer's fake marker: a retail package
+           installed from a local URL is marked fake but is still Sony's. The
+           marker only decides when the header can't be read. */
+        t->source_type = t->pkg_sign == PATCHDL_PKG_RETAIL ? PATCHDL_SOURCE_OFFICIAL
+                       : (is_fake || t->pkg_sign == PATCHDL_PKG_FAKE)
+                                                   ? PATCHDL_SOURCE_FAKE
+                                                   : PATCHDL_SOURCE_UNKNOWN;
+        /* A Sony-signed package someone installed with another tool, often
+           to keep one exact app version. PatchDL's own installs name its
+           loopback server in app.json. An update would replace that
+           version. */
+        {
+            /* PatchDL installs from its server (loopback or LAN address,
+               both on its port) or, as a fallback, from its download folder
+               (/user/data/patchdl/...). app.json escapes slashes, so match
+               pieces without them. */
+            char port[16];
+            snprintf(port, sizeof port, ":%d", PATCHDL_HTTP_PORT);
+            t->sideloaded = is_fake && t->source_type == PATCHDL_SOURCE_OFFICIAL &&
+                            !strstr(appjson, port) && !strstr(appjson, "patchdl");
+        }
    } else if (is_shadow || has_mountlnk || has_paramjson ||
               path_exists(dir, "sce_sys/param.sfo")) {
        if (try_param_json(dir, t)) /* metadata from the mounted sce_sys */
@@ -333,7 +422,7 @@ scan_base(const char *base, patchdl_title_t *arr, size_t *cnt, size_t cap,
    DIR           *d;
    struct dirent *de;

-    d = opendir(base);
+    d = opendir(sys_path(base));
    if (!d) return;

    while ((de = readdir(d))) {
@@ -356,20 +445,90 @@ patchdl_source_str(patchdl_source_t src) {
    case PATCHDL_SOURCE_OFFICIAL:    return "official";
    case PATCHDL_SOURCE_EXTERNAL:    return "external";
    case PATCHDL_SOURCE_SHADOWMOUNT: return "shadowmount";
+    case PATCHDL_SOURCE_FAKE:        return "fake";
    default:                          return "unknown";
    }
 }

+/* Open a title's icon0.png while the scan still sees the whole filesystem.
+   The web server can't reach these paths later, but an fd opened now stays
+   readable. Tries the app.db path first, then the usual install locations.
+   Returns an fd to a non-empty PNG of sane size, or -1. */
+#define ICON_MAX_BYTES (4 * 1024 * 1024)
+
+static int
+open_png(const char *path) {
+    unsigned char magic[8];
+    struct stat   st;
+    int           fd;
+
+    if (!path || path[0] != '/') return -1;
+    fd = open(sys_path(path), O_RDONLY | O_CLOEXEC);
+    if (fd < 0) return -1;
+    if (fstat(fd, &st) || !S_ISREG(st.st_mode) ||
+        st.st_size < 8 || st.st_size > ICON_MAX_BYTES ||
+        pread(fd, magic, 8, 0) != 8 ||
+        memcmp(magic, "\x89PNG\r\n\x1a\n", 8)) {
+        close(fd);
+        return -1;
+    }
+    return fd;
+}
+
+static int
+open_icon(const patchdl_title_t *t, const char *db_path) {
+    static const char *const candidates[] = {
+        "/user/appmeta/%s/icon0.png",
+        "/user/appmeta/external/%s/icon0.png",
+        "%s/sce_sys/icon0.png",            /* source_path, e.g. a shadowmount */
+        NULL,
+    };
+    char path[PATH_MAX];
+    int  fd = open_png(db_path);
+
+    for (int i = 0; fd < 0 && candidates[i]; i++) {
+        snprintf(path, sizeof(path), candidates[i],
+                 i < 2 ? t->title_id : t->source_path);
+        fd = open_png(path);
+    }
+    return fd;
+}
+
+/* After an install the console rewrites /user/appmeta/<id>/param.json at
+   once, while app.db keeps the old CONTENT_VERSION until later (seen: until
+   the game was started). Take the newer of the two so a finished update
+   doesn't look pending. */
+static void
+newer_appmeta_version(patchdl_title_t *t) {
+    char path[PATH_MAX], buf[8192], ver[16] = {0};
+    FILE *fp;
+    size_t n;
+
+    snprintf(path, sizeof(path), "/user/appmeta/%s/param.json", t->title_id);
+    if (!(fp = fopen(sys_path(path), "r"))) return;
+    n = fread(buf, 1, sizeof(buf) - 1, fp);
+    fclose(fp);
+    buf[n] = '\0';
+    if (json_str(buf, "contentVersion", ver, sizeof(ver)) == 0 &&
+        strcmp(ver, t->installed_version) > 0)
+        snprintf(t->installed_version, sizeof(t->installed_version), "%s", ver);
+}
+
 /* Overlay app.db metadata (real title name, installed version, version.xml
   URL) onto the scanned titles. Genuine installs have no readable param.json,
   so this is the only source of their name/version. */
-static void
+static int
 merge_appdb(patchdl_title_t *arr, size_t cnt) {
    patchdl_appinfo_t *info = NULL;
    size_t n = 0;

-    if (patchdl_appdb_load(&info, &n))
-        return;
+    {
+        int rc = patchdl_appdb_load(&info, &n, g_rel_paths);
+        if (rc) {
+            g_scan_step = rc == -2 ? patchdl_appdb_error() : "fail: appdb read";
+            return -1;
+        }
+    }

    for (size_t i = 0; i < cnt; i++) {
        const patchdl_appinfo_t *a = patchdl_appdb_find(info, n, arr[i].title_id);
@@ -387,11 +546,21 @@ merge_appdb(patchdl_title_t *arr, size_t cnt) {
                    sizeof(arr[i].version_file_uri) - 1);
    }

+    g_scan_step = "icons";
+    for (size_t i = 0; i < cnt; i++) {
+        const patchdl_appinfo_t *a = patchdl_appdb_find(info, n, arr[i].title_id);
+        arr[i].icon_fd = open_icon(&arr[i], a ? a->icon_path : NULL);
+        if (arr[i].pkg_sign != PATCHDL_PKG_NONE)
+            newer_appmeta_version(&arr[i]);
+    }
+
    patchdl_appdb_free(info);
+    return 0;
 }

-/* See patchdl_scan_lock — both vnode-swap entry points return -1 / NULL once
-   this is set so a late rescan call can't race the running MHD threads. */
+/* See patchdl_scan_lock — once set, patchdl_scan no longer swaps the root
+   (it rescans via the kept system root handle) and the debug dump returns
+   NULL, so neither can race the running MHD threads. */
 static _Atomic int g_scan_locked = 0;

 void
@@ -399,30 +568,72 @@ patchdl_scan_lock(void) {
    atomic_store(&g_scan_locked, 1);
 }

-int
-patchdl_scan(patchdl_title_t **titles_out, size_t *count_out) {
+static int
+scan_all(patchdl_title_t **titles_out, size_t *count_out) {
    patchdl_title_t *arr;
    size_t cnt = 0;
-    pid_t pid = getpid();
-    intptr_t saved_root = 0, root_vnode;
-    int using_vswap = 0;
-
    struct statfs *mounts = NULL;
    int            nmounts;

-    if (atomic_load(&g_scan_locked)) return -1;
-
    arr = calloc(MAX_TITLES, sizeof(*arr));
-    if (!arr) return -1;
+    if (!arr) { g_scan_step = "fail: oom"; return -1; }
+
+    /* Global mount table for shadowmount detection. getmntinfo's buffer is
+       libc-managed — must NOT be freed. */
+    g_scan_step = "mounts";
+    nmounts = getmntinfo(&mounts, MNT_NOWAIT);
+    if (nmounts < 0) { nmounts = 0; mounts = NULL; }
+
+    for (int i = 0; SCAN_DIRS[i]; i++) {
+        g_scan_step = SCAN_DIRS[i];
+        scan_base(SCAN_DIRS[i], arr, &cnt, MAX_TITLES, mounts, nmounts);
+    }
+    g_scan_step = "appdb";
+
+    /* At startup a list without app.db data still beats none. A rescan
+       without it would wipe names and versions of a good list: fail instead
+       and keep the old one. */
+    if (merge_appdb(arr, cnt) && g_rel_paths) {
+        free(arr);
+        return -1;
+    }
+    g_scan_step = "idle";
+
+    *titles_out = arr;
+    *count_out  = cnt;
+    return 0;
+}
+
+/* A rescan while other threads run: resolve every path from the system root
+   kept by the first scan, without touching the process root. */
+static int
+rescan_relative(patchdl_title_t **titles_out, size_t *count_out) {
+    int cwd, rc;
+
+    if (g_sysroot_fd < 0) { g_scan_step = "fail: no system root handle"; return -1; }
+    cwd = open(".", O_RDONLY | O_DIRECTORY | O_CLOEXEC);
+    if (cwd < 0) { g_scan_step = "fail: open cwd"; return -1; }
+    if (fchdir(g_sysroot_fd)) { g_scan_step = "fail: fchdir"; close(cwd); return -1; }
+    g_rel_paths = 1;
+    rc = scan_all(titles_out, count_out);
+    g_rel_paths = 0;
+    (void)fchdir(cwd);   /* best effort: nothing else uses the cwd */
+    close(cwd);
+    return rc;
+}
+
+int
+patchdl_scan(patchdl_title_t **titles_out, size_t *count_out) {
+    pid_t pid = getpid();
+    intptr_t saved_root = 0, root_vnode;
+    int using_vswap = 0, rc;

    /* Elevate so privileged paths (the app.db under /system_data) are
       readable; same authid ftpsrv uses. No-op without kernel R/W. */
    kernel_set_ucred_authid(pid, 0x4801000000000013L);

-    /* Global mount table for shadowmount detection. getmntinfo's buffer is
-       libc-managed — must NOT be freed. */
-    nmounts = getmntinfo(&mounts, MNT_NOWAIT);
-    if (nmounts < 0) { nmounts = 0; mounts = NULL; }
+    if (atomic_load(&g_scan_locked))
+        return rescan_relative(titles_out, count_out);

    root_vnode = kernel_get_root_vnode();
    if (root_vnode) {
@@ -433,25 +644,91 @@ patchdl_scan(patchdl_title_t **titles_out, size_t *count_out) {
        if (saved_root) {
            kernel_set_proc_rootdir(pid, root_vnode);
            using_vswap = 1;
+            if (g_sysroot_fd < 0)
+                g_sysroot_fd = open("/", O_RDONLY | O_DIRECTORY | O_CLOEXEC);
        }
    }

-    for (int i = 0; SCAN_DIRS[i]; i++)
-        scan_base(SCAN_DIRS[i], arr, &cnt, MAX_TITLES, mounts, nmounts);
-
-    merge_appdb(arr, cnt);
+    rc = scan_all(titles_out, count_out);

    if (using_vswap)
        kernel_set_proc_rootdir(pid, saved_root);
+    return rc;
+}

-    *titles_out = arr;
-    *count_out  = cnt;
-    return 0;
+static const char *PATCH_DIRS[] = {
+    "/user/patch",
+    "/mnt/ext0/user/patch",
+    "/mnt/ext1/user/patch",
+    NULL,
+};
+
+static int
+read_title_file(const char *const *bases, const char *title_id, const char *name,
+                char *buf, size_t sz) {
+    char path[PATH_MAX];
+    if (g_sysroot_fd < 0 || !sz) return -1;
+    for (int i = 0; bases[i]; i++) {
+        int     fd;
+        ssize_t n;
+        snprintf(path, sizeof(path), "%s/%s/%s", bases[i] + 1, title_id, name);
+        fd = openat(g_sysroot_fd, path, O_RDONLY | O_CLOEXEC);
+        if (fd < 0) continue;
+        n = read(fd, buf, sz - 1);
+        close(fd);
+        if (n < 0) return -1;
+        buf[n] = '\0';
+        return 0;
+    }
+    return -1;
+}
+
+int
+patchdl_scan_read_app_file(const char *title_id, const char *name,
+                           char *buf, size_t sz) {
+    return read_title_file(SCAN_DIRS, title_id, name, buf, sz);
+}
+
+int
+patchdl_scan_read_patch_file(const char *title_id, const char *name,
+                             char *buf, size_t sz) {
+    return read_title_file(PATCH_DIRS, title_id, name, buf, sz);
+}
+
+/* Fold one stat result into an FNV-1a hash. */
+static unsigned long long
+sig_add(unsigned long long h, const char *rel) {
+    struct stat st;
+    long long   v[4] = {0};
+    if (fstatat(g_sysroot_fd, rel, &st, 0) == 0) {
+        v[0] = (long long)st.st_mtim.tv_sec;
+        v[1] = (long long)st.st_mtim.tv_nsec;
+        v[2] = (long long)st.st_size;
+        v[3] = (long long)st.st_ino;
+    }
+    for (size_t i = 0; i < sizeof v; i++) {
+        h ^= ((const unsigned char *)v)[i];
+        h *= 1099511628211ULL;
+    }
+    return h;
+}
+
+unsigned long long
+patchdl_scan_signature(void) {
+    unsigned long long h = 14695981039346656037ULL;
+    if (g_sysroot_fd < 0) return 0;
+    for (int i = 0; SCAN_DIRS[i]; i++)
+        h = sig_add(h, SCAN_DIRS[i] + 1);
+    h = sig_add(h, "system_data/priv/mms/app.db");
+    h = sig_add(h, "system_data/priv/mms/app.db-wal");
+    return h ? h : 1;
 }

 void
 patchdl_scan_free(patchdl_title_t *titles, size_t count) {
-    (void)count;
+    for (size_t i = 0; titles && i < count; i++)
+        if (titles[i].icon_fd >= 0)
+            close(titles[i].icon_fd);
    free(titles);
 }

@@ -1,3 +1,12 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
 #pragma once

 #include <stddef.h>
@@ -8,8 +17,17 @@ typedef enum {
    PATCHDL_SOURCE_EXTERNAL    = 1,
    PATCHDL_SOURCE_SHADOWMOUNT = 2,
    PATCHDL_SOURCE_UNKNOWN     = 3,
+    PATCHDL_SOURCE_FAKE        = 4, /* debug/fake-signed package: not supported */
 } patchdl_source_t;

+/* Signing state read from the installed app.pkg header. */
+typedef enum {
+    PATCHDL_PKG_NONE    = 0, /* no app.pkg */
+    PATCHDL_PKG_RETAIL  = 1,
+    PATCHDL_PKG_FAKE    = 2,
+    PATCHDL_PKG_UNREAD  = 3, /* app.pkg present but header unreadable/unknown */
+} patchdl_pkg_sign_t;
+
 typedef struct {
    char             title_id[32];
    char             content_id[64];
@@ -19,6 +37,10 @@ typedef struct {
    char             mount_from[256];
    char             version_file_uri[256]; /* from app.db, for version.xml */
    patchdl_source_t source_type;
+    patchdl_pkg_sign_t pkg_sign;      /* app.pkg header verdict, for diagnostics */
+    int              sideloaded;       /* Sony-signed, but installed by another
+                                          tool (not Store, disc or PatchDL) */
+    int              icon_fd;          /* open icon0.png, or -1; see patchdl_scan */
    /* populated by background verxml fetch — guarded by websrv mutex */
    char             compatible_version[16];
    char             latest_version[16];
@@ -28,8 +50,18 @@ typedef struct {
    char             patch_title_id[16]; /* target title id from version.xml */
    char             patch_storage_title_id[16]; /* title id embedded in delta_url */
    int              verxml_done;
+    /* Prospero Patches lookup (best compatible patch from version history) */
+    char             prospero_version[16];
+    char             prospero_required_fw[16];
+    char             prospero_size[16];
+    int              prospero_done;
+    /* Manifest URL derived from a link the user pasted from Prospero. When
+       set it replaces patch_url for download and install. */
+    char             manual_url[512];
+    char             manual_version[16];
    int              enabled;          /* user policy, persisted in config.json */
    int              resumable;        /* a partial download is on disk */
+    int              downloaded;       /* a finished download is on disk */
    long long        partial_bytes;    /* size of that partial, for the UI */
 } patchdl_title_t;

@@ -41,8 +73,27 @@ const char *patchdl_source_str(patchdl_source_t src);
   listings. Caller frees. */
 char       *patchdl_scan_debug_json(void);

+/* Cheap change check for the automatic rescan: a hash over the title
+   directories and Sony's app.db. 0 when it can't be computed (no system root
+   handle), so callers never rescan on it. */
+unsigned long long patchdl_scan_signature(void);
+
+/* Name of the step the running scan is in ("idle" when none). */
+const char *patchdl_scan_step(void);
+
+/* Read <title dir>/<name> of an installed title (e.g. app.json) through the
+   kept system root handle; thread-safe, no working-directory change.
+   0 on success with a NUL-terminated buf. */
+int patchdl_scan_read_app_file(const char *title_id, const char *name,
+                               char *buf, size_t sz);
+/* Same for an installed PS4 patch: /user/patch/<id>/<name>. */
+int patchdl_scan_read_patch_file(const char *title_id, const char *name,
+                                 char *buf, size_t sz);
+
 /* Mark scan/debug as no longer safe to call (must be set after MHD worker
   threads come up — patchdl_scan performs a process-wide vnode swap that
-   would race any concurrent thread). After this is set, both entry points
-   return immediately. Call once during startup, after MHD_start_daemon. */
+   would race any concurrent thread). After this is set, patchdl_scan rescans
+   through the system root handle kept by the first scan (working directory
+   only, one caller at a time) and the debug dump returns NULL. Call once
+   during startup, after MHD_start_daemon. */
 void        patchdl_scan_lock(void);
@@ -0,0 +1,231 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
+#include "patchdl_tile.h"
+#include "patchdl_install.h"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include <ps5/kernel.h>
+
+/* Embed the tile assets into .rodata directly via .incbin — no codegen step,
+   no Python helper, no second translation unit. */
+#define INCASSET(name, file)                                                  \
+    __asm__(".section .rodata\n"                                              \
+            ".global " #name "\n"                                             \
+            ".global " #name "_end\n"                                         \
+            ".global " #name "_size\n"                                        \
+            ".align 16\n" #name ":\n"                                         \
+            ".incbin \"" file "\"\n" #name "_end:\n" #name "_size:\n"         \
+            ".quad " #name "_end - " #name "\n"                               \
+            ".previous\n");                                                   \
+    extern const uint8_t name[];                                              \
+    extern const size_t  name##_size;
+
+INCASSET(tile_param_json, "assets/param.json");
+INCASSET(tile_icon0_png,  "assets/icon0.png");
+
+#define TILE_TITLE_ID "PTDL00001"
+
+/* Forward decls — we resolve sceAppInstUtilInitialize/AppInstallTitleDir at
+   runtime via the kernel dynlib helpers so the ELF stays loader-friendly. */
+typedef int (*ai_init_fn)(void);
+typedef int (*ai_install_dir_fn)(const char *title_id, const char *parent_dir,
+                                  void *opts);
+typedef int (*ai_install_all_fn)(void *opts);
+
+static intptr_t
+dynsym_by_name(const char *sym) {
+    uint32_t h = 0;
+    if (kernel_dynlib_handle(-1, "libSceAppInstUtil.sprx", &h) < 0) return 0;
+    return kernel_dynlib_dlsym(-1, h, sym);
+}
+
+static intptr_t
+dynsym_by_nid(const char *nid) {
+    uint32_t h = 0;
+    if (kernel_dynlib_handle(-1, "libSceAppInstUtil.sprx", &h) < 0) return 0;
+    return kernel_dynlib_resolve(-1, h, nid);
+}
+
+static int
+write_all(const char *path, const uint8_t *data, size_t size) {
+    int     fd;
+    ssize_t w;
+    size_t  off = 0;
+
+    /* O_NOFOLLOW + 0600: don't follow a symlink at the destination, and don't
+       create the file with the libc default 0666 mode. Same pattern as the
+       net layer's fopen_safe. */
+    fd = open(path, O_WRONLY | O_CREAT | O_TRUNC | O_NOFOLLOW | O_CLOEXEC, 0600);
+    if (fd < 0) return -1;
+    while (off < size) {
+        w = write(fd, data + off, size - off);
+        if (w < 0) {
+            if (errno == EINTR) continue;
+            close(fd);
+            return -1;
+        }
+        off += (size_t)w;
+    }
+    close(fd);
+    return 0;
+}
+
+static int
+file_matches(const char *path, const uint8_t *expected, size_t expected_size) {
+    struct stat st;
+    uint8_t    *buf;
+    int         fd;
+    ssize_t     n;
+    int         match = 0;
+
+    if (stat(path, &st) != 0) return 0;
+    if ((size_t)st.st_size != expected_size) return 0;
+
+    fd = open(path, O_RDONLY | O_CLOEXEC);
+    if (fd < 0) return 0;
+
+    buf = malloc(expected_size);
+    if (!buf) { close(fd); return 0; }
+
+    n = read(fd, buf, expected_size);
+    close(fd);
+    if (n == (ssize_t)expected_size && memcmp(buf, expected, expected_size) == 0)
+        match = 1;
+
+    free(buf);
+    return match;
+}
+
+int
+patchdl_tile_install_if_needed(char *msg, size_t msg_sz) {
+    char base_dir[128];
+    char sce_sys_dir[160];
+    char param_path[192];
+    char icon_path[192];
+    char receipt_path[192];
+
+    ai_init_fn        ai_initialize    = NULL;
+    ai_install_dir_fn ai_install_title = NULL;
+    ai_install_all_fn ai_install_all   = NULL;
+    int               rc;
+
+    snprintf(base_dir,    sizeof base_dir,    "/user/app/%s",                  TILE_TITLE_ID);
+    snprintf(sce_sys_dir, sizeof sce_sys_dir, "/user/app/%s/sce_sys",          TILE_TITLE_ID);
+    snprintf(param_path,  sizeof param_path,  "/user/app/%s/sce_sys/param.json", TILE_TITLE_ID);
+    snprintf(icon_path,   sizeof icon_path,   "/user/app/%s/sce_sys/icon0.png",  TILE_TITLE_ID);
+    /* Written only after the installer accepted the tile. Without it, files
+       left behind by a failed registration would pass the stat-guard below
+       and the tile would never be retried. */
+    snprintf(receipt_path, sizeof receipt_path, "/user/app/%s/.patchdl_registered", TILE_TITLE_ID);
+
+    /* stat-guard: if everything on disk already matches, do nothing. Re-running
+       the install API every payload start would be wasted work and burns the
+       only safe path through Sony's installer state machine. */
+    {
+        struct stat st;
+        if (stat(receipt_path, &st) == 0 &&
+            file_matches(param_path, tile_param_json, tile_param_json_size) &&
+            file_matches(icon_path,  tile_icon0_png,  tile_icon0_png_size)) {
+            snprintf(msg, msg_sz, "tile already installed and up to date");
+            return 0;
+        }
+    }
+
+    /* AppInstUtil is loaded lazily by the install backend thread. Poke it +
+       poll briefly so libSceAppInstUtil.sprx is mapped before we try to
+       resolve symbols out of it. Bounded to a few seconds so a stuck init
+       doesn't wedge an MHD worker forever. */
+    {
+        char    ready_msg[128];
+        int     ready = -1;
+        for (int i = 0; i < 60 && ready != 0; i++) {
+            ready = patchdl_install_backend_check(ready_msg, sizeof ready_msg);
+            if (ready != 0) usleep(250 * 1000);
+        }
+        if (ready != 0) {
+            snprintf(msg, msg_sz,
+                     "install backend not ready: %s", ready_msg);
+            return -1;
+        }
+    }
+
+    /* Resolve the install API now so we can fail fast before touching disk.
+       The symbol export is Sony-private, so the NID resolver is the more
+       reliable lookup — try NID first, fall back to the by-name dlsym. */
+    ai_install_title = (ai_install_dir_fn)dynsym_by_nid("Wudg3Xe3heE");
+    if (!ai_install_title)
+        ai_install_title = (ai_install_dir_fn)dynsym_by_name(
+            "sceAppInstUtilAppInstallTitleDir");
+    /* Firmware 13.xx no longer exports AppInstallTitleDir. AppInstallAll
+       rescans /user/app and registers the tile directory the same way. */
+    if (!ai_install_title)
+        ai_install_all = (ai_install_all_fn)dynsym_by_name(
+            "sceAppInstUtilAppInstallAll");
+    if (!ai_install_title && !ai_install_all) {
+        snprintf(msg, msg_sz,
+                 "neither AppInstallTitleDir nor AppInstallAll resolved");
+        return -1;
+    }
+
+    ai_initialize = (ai_init_fn)dynsym_by_name("sceAppInstUtilInitialize");
+    if (ai_initialize) {
+        rc = ai_initialize();
+        /* SCE_OK == 0; a non-zero rc here usually means "already initialised"
+           in this process, which is fine. We only bail on a clearly fatal
+           code (anything that isn't already the success case). */
+        if (rc != 0 && rc != 0x80B21161 /* ALREADY_INITIALIZED */) {
+            snprintf(msg, msg_sz,
+                     "sceAppInstUtilInitialize failed 0x%08x", (unsigned)rc);
+            return -1;
+        }
+    }
+
+    if (mkdir(base_dir, 0755) && errno != EEXIST) {
+        snprintf(msg, msg_sz, "mkdir %s failed errno=%d", base_dir, errno);
+        return -1;
+    }
+    if (mkdir(sce_sys_dir, 0755) && errno != EEXIST) {
+        snprintf(msg, msg_sz, "mkdir %s failed errno=%d", sce_sys_dir, errno);
+        return -1;
+    }
+
+    unlink(receipt_path);
+    if (write_all(param_path, tile_param_json, tile_param_json_size)) {
+        snprintf(msg, msg_sz, "write param.json failed errno=%d", errno);
+        return -1;
+    }
+    if (write_all(icon_path, tile_icon0_png, tile_icon0_png_size)) {
+        snprintf(msg, msg_sz, "write icon0.png failed errno=%d", errno);
+        return -1;
+    }
+
+    rc = ai_install_title ? ai_install_title(TILE_TITLE_ID, "/user/app/", NULL)
+                          : ai_install_all(NULL);
+    if (rc != 0) {
+        snprintf(msg, msg_sz, "%s(%s) returned 0x%08x",
+                 ai_install_title ? "AppInstallTitleDir" : "AppInstallAll",
+                 TILE_TITLE_ID, (unsigned)rc);
+        return -1;
+    }
+
+    (void)write_all(receipt_path, (const uint8_t *)"1", 1);
+    snprintf(msg, msg_sz, "tile installed (%s via %s)", TILE_TITLE_ID,
+             ai_install_title ? "AppInstallTitleDir" : "AppInstallAll");
+    return 0;
+}
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
+#pragma once
+
+#include <stddef.h>
+
+/* Install / refresh the PatchDL home-screen tile.
+ *
+ * Writes param.json + icon0.png into /user/app/<TITLE_ID>/sce_sys/ and asks
+ * the on-console installer to register the directory as an app. The tile's
+ * deeplinkUri opens the on-console browser at http://127.0.0.1:12880/, i.e.
+ * PatchDL's own UI — only useful while the ELF is running.
+ *
+ * No package, no code signing — files only; the installer reads the
+ * directory directly.
+ *
+ * stat-guard: the asset bytes are diffed against the on-disk copy first;
+ * if nothing changed the install call isn't made at all (avoids a costly
+ * re-register every payload start). Returns 0 on success or when nothing
+ * needed doing.
+ */
+int patchdl_tile_install_if_needed(char *msg, size_t msg_sz);
@@ -1,3 +1,12 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
 #pragma once

-#define PATCHDL_VERSION "0.0.4"
+#define PATCHDL_VERSION "0.2.1"
@@ -1,3 +1,12 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
 #include "patchdl_verxml.h"
 #include "patchdl_net.h"

@@ -125,20 +134,26 @@ parse_packages(const char *xml, uint32_t fw_bin, patchdl_verinfo_t *out) {
        char murl[512] = {0};

        /* PS5 version.xml uses content_ver; PS4 uses version. */
-        if (attr_val(p, tag_end, "content_ver", ver, sizeof(ver)))
+        int is_ps4 = attr_val(p, tag_end, "content_ver", ver, sizeof(ver)) != 0;
+        if (is_ps4)
            attr_val(p, tag_end, "version", ver, sizeof(ver));
        attr_val(p, tag_end, "system_ver", sver, sizeof(sver));
        attr_val(p, tag_end, "delta_url", durl, sizeof(durl));
        attr_val(p, tag_end, "manifest_url", murl, sizeof(murl));

-        if (ver[0] && sver[0]) {
-            uint32_t pkg_sver = parse_hex(sver);
+        if (ver[0] && (sver[0] || is_ps4)) {
+            /* A PS4 patch's system_ver is a PS4 firmware (in decimal); the
+               PS5 runs PS4 games regardless, so it never blocks one. */
+            uint32_t pkg_sver = is_ps4 ? 0 : parse_hex(sver);

            /* Track latest overall */
            if (!out->latest_version[0] || ver_gt(ver, out->latest_version)) {
                strncpy(out->latest_version, ver, sizeof(out->latest_version) - 1);
-                fw_bin_to_str(pkg_sver, out->latest_required_fw,
-                              sizeof(out->latest_required_fw));
+                if (is_ps4)
+                    out->latest_required_fw[0] = '\0';
+                else
+                    fw_bin_to_str(pkg_sver, out->latest_required_fw,
+                                  sizeof(out->latest_required_fw));
            }

            /* Track latest compatible + its installable patch source. PS5
@@ -183,10 +198,10 @@ patchdl_verxml_query(const char *url, uint32_t fw_bin, patchdl_verinfo_t *out) {
    if (!url || !out) return -1;
    memset(out, 0, sizeof(*out));

-    /* version.xml is a few KB in practice; cap to 16 MiB so a misbehaving CDN
-       can't slurp unbounded RAM into the buffer. */
+    /* version.xml is a few KB in practice; cap so a misbehaving CDN can't
+       slurp unbounded RAM into the buffer. */
    memset(&buf, 0, sizeof(buf));
-    buf.max = 16 * 1024 * 1024;
+    buf.max = 4 * 1024 * 1024;
    if (patchdl_http_get(url, &buf)) return -1;
    if (!buf.data || !buf.size) { free(buf.data); return -1; }

@@ -1,3 +1,12 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
 #pragma once

 #include <stdint.h>
@@ -1,3 +1,12 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later
+ * Copyright (C) 2026 Knutwurst
+ *
+ * PatchDL is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version. See the LICENSE file in the project root for details.
+ */
+
 #pragma once

 int patchdl_websrv_start(unsigned short port);
@@ -39,8 +39,9 @@ The UI assumes deny-by-default behavior:
  "source_policy": {
    "official": { "allow_check": true, "allow_download": true, "allow_install": true },
    "external": { "allow_check": true, "allow_download": true, "allow_install": true },
-    "shadowmount": { "allow_check": true, "allow_download": true, "allow_install": false },
-    "unknown": { "allow_check": true, "allow_download": false, "allow_install": false }
+    "shadowmount": { "allow_check": true, "allow_download": false, "allow_install": false },
+    "unknown": { "allow_check": true, "allow_download": false, "allow_install": false },
+    "fake": { "allow_check": true, "allow_download": false, "allow_install": false }
  },
  "cdn_allowlist": [
    "sgst.prod.dl.playstation.net",
@@ -70,7 +71,7 @@ Per-title source fields:
  "source_path": "/system_ex/app/PPSA90001_00",
  "mount_from": "/mnt/usb0/itemzflow/Shadowmounted Test Title",
  "enabled": true,
-  "mode": "download_only"
+  "mode": "disabled"
 }
 ```

@@ -83,16 +84,17 @@ shadowmount
 unknown
 ```

-The frontend treats `shadowmount` as download-only and `unknown` as blocked for
-downloads and installs. Backend code should enforce the same policy even if a
-client sends a forged request.
+The frontend lists `shadowmount`, `unknown` and `fake` titles under *Not
+supported* and offers neither download nor install for them. The backend refuses
+both as well, even if a client sends a forged request.

 For PS5 game updates, the backend may turn a Sony `manifest_url` into a merged
 local `.pkg` by downloading all manifest pieces. The `delta_url` `*-DP.pkg` is
 not shown as a separate user action because it can bootstrap the storage/master
 title instead of the installed regional target.

-If `patch_storage_match` is false, the UI keeps download/verify available but
-does not offer install or auto-install. Those shared-master packages are signed
-for a different storage title id and cannot be retargeted by standalone
-AppInstUtil on firmware 11.60.
+If `patch_storage_match` is false, the CDN stores the patch pieces under another
+regional (master) title id. That is fine: the merged `.pkg` assembled from the
+manifest carries the installed title's own content id, and AppInstUtil
+`AppInstallPkg` installs it onto that title. The UI only adds a "Shared master"
+label.
@@ -39,7 +39,7 @@
          <div class="brand-mark">PD</div>
          <div>
            <strong>PatchDL</strong>
-            <span>by Knutwurst · v0.0.3</span>
+            <span>by Knutwurst · <span id="brandVersion">--</span></span>
          </div>
        </div>

@@ -58,6 +58,7 @@
        <div class="rail-foot">
          <span id="railFw">FW --</span>
          <span id="railSpace">-- free</span>
+          <button type="button" class="link-button rail-donate" data-donate>Buy me a coffee</button>
        </div>
      </aside>

@@ -66,7 +67,7 @@
        <section class="view is-active" data-view="games">
          <header class="topbar">
            <div>
-              <p class="eyebrow">Standalone ELF Web UI</p>
+              <p class="eyebrow">PS5 &amp; PS4 game updates</p>
              <h1>Games</h1>
            </div>
            <div class="topbar-actions">
@@ -80,6 +81,29 @@
            </div>
          </header>

+          <aside id="globalDl" class="global-dl" hidden aria-live="polite">
+            <div class="global-dl-row">
+              <span class="global-dl-pulse" aria-hidden="true"></span>
+              <div class="global-dl-text">
+                <div class="global-dl-line1">
+                  <span class="global-dl-eyebrow" id="globalDlState">Downloading</span>
+                  <strong class="global-dl-name" id="globalDlName">—</strong>
+                  <span class="global-dl-position" id="globalDlPosition" hidden></span>
+                </div>
+                <div class="global-dl-line2">
+                  <span id="globalDlPct">0%</span>
+                  <span class="global-dl-sep" aria-hidden="true">·</span>
+                  <span id="globalDlSpeed">—</span>
+                  <span class="global-dl-sep" aria-hidden="true">·</span>
+                  <span id="globalDlEta">—</span>
+                </div>
+              </div>
+            </div>
+            <div class="global-dl-track">
+              <i class="global-dl-bar" id="globalDlBar" style="width:0%"></i>
+            </div>
+          </aside>
+
          <section class="status-strip" aria-label="System status">
            <article class="metric">
              <span>Firmware</span>
@@ -89,7 +113,7 @@
            <article class="metric">
              <span>DNS Guard</span>
              <strong id="dnsValue">--</strong>
-              <em>Sony blocked by nanoDNS</em>
+              <em>System DNS left untouched</em>
            </article>
            <article class="metric">
              <span>CDN Access</span>
@@ -109,12 +133,10 @@
              <input id="searchInput" type="search" placeholder="Search title, Title ID, or Content ID" />
            </div>
            <div class="segmented" role="group" aria-label="Filter">
-              <button class="is-selected" data-filter="updatable" aria-pressed="true">Updatable</button>
-              <button data-filter="updating" aria-pressed="false">Updating</button>
-              <button data-filter="uptodate" aria-pressed="false">Up to date</button>
-              <button data-filter="needsfw" aria-pressed="false">Needs FW</button>
-              <button data-filter="blocked" aria-pressed="false">Can't update</button>
-              <button data-filter="all" aria-pressed="false">All</button>
+              <button class="is-selected" data-filter="updates" aria-pressed="true">Updates <span class="chip-count"></span></button>
+              <button data-filter="uptodate" aria-pressed="false">Up to date <span class="chip-count"></span></button>
+              <button data-filter="blocked" aria-pressed="false">Not supported <span class="chip-count"></span></button>
+              <button data-filter="all" aria-pressed="false">All <span class="chip-count"></span></button>
            </div>
          </div>

@@ -148,7 +170,7 @@
              <label class="field">
                <span>Download Folder</span>
                <input id="downloadDir" type="text" spellcheck="false" readonly
-                       title="Patches always download internally and are removed after install" />
+                       title="Patches always download to the console's internal storage" />
              </label>

              <label class="switch-row">
@@ -213,6 +235,16 @@
              <span>Install Protection</span>
              <div id="sourcePolicyList"></div>
            </div>
+
+            <div class="storage-list">
+              <span>Downloads on console <em id="storageTotal"></em></span>
+              <div id="storageList"></div>
+            </div>
+
+            <div class="donate-row">
+              <span>Like PatchDL? You can buy me a coffee.</span>
+              <button type="button" class="row-button is-ghost" data-donate>Buy me a coffee</button>
+            </div>
          </div>
        </section>

@@ -116,6 +116,42 @@ svg {
  font-size: 12px;
 }
 .rail-foot span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+.rail-foot .rail-donate { justify-self: start; margin-top: 4px; }
+
+.donate-row {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  justify-content: space-between;
+  gap: 10px;
+  margin-top: 16px;
+  padding: 12px;
+  border: 1px solid var(--border);
+  border-radius: 8px;
+  background: var(--surface-2);
+  color: var(--muted);
+}
+.donate-row .row-button { width: auto; padding: 0 16px; }
+.diag-body { display: grid; gap: 14px; }
+.diag-list { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
+.diag-row { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 8px; align-items: start; }
+.diag-row > b { font-size: 16px; }
+.diag-row.is-ok > b { color: var(--green); }
+.diag-row.is-bad > b { color: var(--red); }
+.diag-row em { color: var(--muted); font-style: normal; font-size: 13px; }
+.diag-report {
+  width: 100%;
+  box-sizing: border-box;
+  padding: 10px;
+  border: 1px solid var(--border);
+  border-radius: 8px;
+  background: var(--surface-2);
+  color: var(--ink);
+  font: 12px/1.45 ui-monospace, SFMono-Regular, Menlo, monospace;
+  resize: vertical;
+}
+.diag-copy { justify-self: start; width: auto; padding: 0 18px; }
+.donate-open { display: inline-flex; align-items: center; justify-content: center; text-decoration: none; justify-self: start; padding: 0 18px; }

 /* ---------------- views + topbar ---------------- */

@@ -173,6 +209,105 @@ h2 { font-size: 18px; line-height: 1.2; }
  margin-bottom: 18px;
 }

+/* ---------------- global download banner ---------------- */
+/* Sticky banner above the status strip, visible only while at least one
+   download is queued/active. The pulse dot and gradient bar at the bottom
+   echo the per-game card progress styling so the two read as one system. */
+.global-dl {
+  position: relative;
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+  margin-bottom: 18px;
+  padding: 16px 18px 0;
+  border: 1px solid var(--border);
+  background:
+    radial-gradient(120% 80% at 0% 0%, var(--green-soft), transparent 60%),
+    linear-gradient(180deg, rgba(56, 193, 114, 0.06), transparent 60%),
+    var(--surface);
+  border-radius: var(--radius);
+  overflow: hidden;
+}
+
+.global-dl[hidden] { display: none; }
+
+.global-dl-row {
+  display: flex;
+  align-items: center;
+  gap: 14px;
+  min-width: 0;
+}
+
+.global-dl-pulse {
+  flex: none;
+  width: 12px;
+  height: 12px;
+  border-radius: 50%;
+  background: var(--green);
+  box-shadow: 0 0 0 0 var(--green);
+  animation: globalDlPulse 1.6s ease-out infinite;
+}
+
+@keyframes globalDlPulse {
+  0%   { box-shadow: 0 0 0 0 rgba(56, 193, 114, 0.55); }
+  70%  { box-shadow: 0 0 0 14px rgba(56, 193, 114, 0);   }
+  100% { box-shadow: 0 0 0 0 rgba(56, 193, 114, 0);      }
+}
+
+.global-dl-text { display: flex; flex-direction: column; gap: 4px; min-width: 0; flex: 1; }
+
+.global-dl-line1 {
+  display: flex; align-items: baseline; gap: 10px;
+  min-width: 0; flex-wrap: wrap;
+}
+.global-dl-eyebrow {
+  text-transform: uppercase; letter-spacing: 0.08em;
+  font-size: 11px; font-weight: 600; color: var(--green-dark);
+}
+.global-dl-name {
+  font-size: 16px; font-weight: 600; color: #fff;
+  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
+  min-width: 0; flex: 1;
+}
+.global-dl-position {
+  font-size: 12px; color: var(--muted);
+  padding: 2px 8px; border-radius: 999px;
+  background: rgba(255, 255, 255, 0.04); border: 1px solid var(--border);
+}
+.global-dl-position[hidden] { display: none; }
+
+.global-dl-line2 {
+  display: flex; align-items: center; gap: 8px;
+  font-size: 12px; color: var(--muted);
+  font-variant-numeric: tabular-nums;
+}
+.global-dl-line2 b { color: #d6dde4; font-weight: 600; }
+.global-dl-sep { opacity: 0.5; }
+
+.global-dl-track {
+  position: relative;
+  height: 3px;
+  margin: 0 -18px;     /* extend bar edge-to-edge */
+  background: rgba(56, 193, 114, 0.08);
+  overflow: hidden;
+}
+.global-dl-bar {
+  display: block;
+  height: 100%;
+  width: 0%;
+  background: linear-gradient(90deg, var(--green) 0%, var(--green-dark) 100%);
+  box-shadow: 0 0 12px rgba(56, 193, 114, 0.4);
+  transition: width 400ms ease-out;
+}
+.global-dl-bar.is-indeterminate {
+  width: 32% !important;
+  animation: globalDlIndet 1.6s ease-in-out infinite;
+}
+@keyframes globalDlIndet {
+  0%   { transform: translateX(-100%); }
+  100% { transform: translateX(320%);  }
+}
+
 .metric {
  min-width: 0;
  padding: 14px 16px;
@@ -239,6 +374,8 @@ h2 { font-size: 18px; line-height: 1.2; }
  white-space: nowrap;
 }
 .segmented button.is-selected { background: var(--surface); color: var(--ink); }
+.chip-count { margin-left: 4px; color: var(--muted); font-weight: 600; font-variant-numeric: tabular-nums; }
+.chip-count:empty { display: none; }

 /* ---------------- game cards ---------------- */

@@ -269,13 +406,15 @@ h2 { font-size: 18px; line-height: 1.2; }
 .cover {
  display: grid;
  place-items: center;
-  width: 48px; height: 48px;
+  width: 64px; height: 64px;
  color: #fff;
  background: linear-gradient(135deg, #2d6d9d, #247857);
-  border-radius: 10px;
-  font-size: 14px;
+  border-radius: 12px;
+  font-size: 16px;
  font-weight: 800;
+  overflow: hidden;
 }
+.cover img { width: 100%; height: 100%; object-fit: cover; display: block; }

 .card-body { min-width: 0; }
 .card-body h3 { margin: 0 0 6px; overflow-wrap: anywhere; font-size: 16px; }
@@ -292,6 +431,10 @@ h2 { font-size: 18px; line-height: 1.2; }
  color: var(--muted);
 }
 .versions b { color: var(--ink); font-weight: 700; }
+.card-note { flex-basis: 100%; line-height: 1.45; }
+.card-note.is-warn { color: var(--amber); }
+.prospero-line a { color: var(--blue); text-decoration: none; }
+.prospero-line a:hover { text-decoration: underline; }

 .card-actions {
  display: flex;
@@ -317,6 +460,7 @@ h2 { font-size: 18px; line-height: 1.2; }
 .pill.warn { border-color: rgba(242, 184, 75, 0.38); background: var(--amber-soft); color: var(--amber); }
 .pill.external { border-color: rgba(88, 166, 255, 0.34); background: var(--blue-soft); color: var(--blue); }
 .pill.shadow { border-color: rgba(181, 146, 255, 0.34); background: rgba(181, 146, 255, 0.14); color: #c7b1ff; }
+.pill.prospero { border-color: rgba(64, 201, 198, 0.38); background: rgba(64, 201, 198, 0.14); color: #6fe0dc; }
 .pill.blocked { border-color: rgba(255, 107, 107, 0.34); background: var(--red-soft); color: var(--red); }
 .pill.live { border-color: rgba(56, 193, 114, 0.5); background: var(--green-soft); color: var(--green-dark); }
 .pill.live::before {
@@ -358,6 +502,17 @@ h2 { font-size: 18px; line-height: 1.2; }
  background: linear-gradient(90deg, var(--green), var(--blue));
  transition: width 320ms ease;
 }
+.progress.is-indeterminate > i {
+  animation: progressSweep 1.6s linear infinite;   /* duration = INDET_MS */
+  transition: none;
+}
+@keyframes progressSweep {
+  from { transform: translateX(-100%); }
+  to   { transform: translateX(320%); }
+}
+@media (prefers-reduced-motion: reduce) {
+  .progress.is-indeterminate > i { animation: none; width: 100% !important; opacity: 0.5; }
+}
 .progress-meta {
  display: flex;
  flex-wrap: wrap;
@@ -451,8 +606,39 @@ h2 { font-size: 18px; line-height: 1.2; }
 .toggle input:checked + .track::after { transform: translateX(18px); background: var(--green); }
 .toggle input:focus-visible + .track { outline: 2px solid var(--blue); outline-offset: 2px; }
 .toggle .label { font-size: 12px; color: var(--muted); min-width: 22px; }
+.lead .toggle .label { white-space: nowrap; }

-.allowlist, .source-policy { display: grid; gap: 8px; margin-top: 16px; }
+.allowlist, .source-policy, .storage-list { display: grid; gap: 8px; margin-top: 16px; }
+.storage-list > span em { color: var(--muted); font-style: normal; margin-left: 6px; }
+.storage-list > div { display: grid; gap: 8px; }
+.storage-row {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) auto auto auto;
+  gap: 10px;
+  align-items: center;
+  padding: 10px;
+  background: var(--surface-2);
+  border: 1px solid var(--border);
+  border-radius: 8px;
+}
+.storage-row strong { font-size: 13px; overflow-wrap: anywhere; }
+.storage-row em { color: var(--muted); font-style: normal; font-size: 12px; }
+.storage-row b { font-variant-numeric: tabular-nums; }
+.storage-empty { color: var(--muted); font-size: 13px; }
+.link-button {
+  padding: 0;
+  border: 0;
+  background: none;
+  color: var(--blue);
+  font: inherit;
+  cursor: pointer;
+  text-decoration: underline;
+  text-underline-offset: 2px;
+}
+.link-button:hover { color: var(--ink); }
+@media (max-width: 640px) {
+  .storage-row { grid-template-columns: minmax(0, 1fr) auto; }
+}
 .allowlist div { display: flex; flex-wrap: wrap; gap: 6px; }
 .source-policy > div { display: grid; gap: 8px; }

@@ -528,8 +714,138 @@ pre {
 }
 .toast.is-visible { opacity: 1; transform: translate(-50%, 0); }

+/* ---------------- older patch guide (Prospero) ---------------- */
+
+.guide-backdrop {
+  position: fixed;
+  inset: 0;
+  z-index: 15;               /* below the toast (20) */
+  display: grid;
+  grid-template-columns: minmax(0, 560px);   /* an auto track would grow to the content */
+  justify-content: center;
+  align-content: center;
+  padding: 24px 16px;
+  overflow-y: auto;
+  background: rgba(5, 7, 9, 0.72);
+}
+.guide {
+  display: grid;
+  gap: 16px;
+  padding: 22px;
+  border: 1px solid var(--border);
+  border-radius: 14px;
+  background: var(--surface);
+  box-shadow: var(--shadow);
+}
+/* minmax(0, 1fr): without it an <input>'s intrinsic width pushes the tracks wider than the sheet */
+.guide, .guide-steps, .guide-steps li { grid-template-columns: minmax(0, 1fr); }
+.guide-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
+.guide-head > div { min-width: 0; }
+.guide-head h2 { margin: 0; font-size: 22px; }
+.guide-game { margin: 4px 0 0; color: var(--muted); }
+.guide-close { flex: none; width: 40px; padding: 0; font-size: 22px; line-height: 1; }
+.guide-why { margin: 0; color: var(--muted); line-height: 1.55; }
+.guide-why b { color: var(--ink); }
+
+.guide-qr {
+  display: flex;
+  align-items: center;
+  gap: 16px;
+  padding: 14px;
+  border: 1px solid var(--border);
+  border-radius: var(--radius);
+  background: var(--surface-2);
+}
+.guide-qr .qr { flex: none; width: 148px; height: 148px; border-radius: 6px; }
+.guide-qr > div { display: grid; gap: 6px; min-width: 0; }
+.guide-qr span { color: var(--muted); line-height: 1.5; }
+.guide-qr code { overflow-wrap: anywhere; color: var(--blue-dark); font-size: 13px; }
+
+/* Console view: the PS5 can't copy links, so it only hands over to a phone. */
+.guide.is-handoff { width: min(560px, 100%); justify-self: center; text-align: center; }
+.guide.is-handoff .guide-head { text-align: left; }
+.guide-handoff { display: grid; justify-items: center; gap: 12px; }
+.guide-handoff .qr { width: min(420px, 100%); height: auto; aspect-ratio: 1; border-radius: 8px; }
+.guide-handoff p { margin: 0; color: var(--muted); line-height: 1.5; }
+.guide-handoff code { overflow-wrap: anywhere; color: var(--blue-dark); font-size: 16px; }
+
+.guide-steps { display: grid; gap: 12px; margin: 0; padding: 0; list-style: none; counter-reset: step; }
+.guide-steps li {
+  display: grid;
+  gap: 10px;
+  padding: 14px 14px 14px 52px;
+  position: relative;
+  border: 1px solid var(--border);
+  border-radius: var(--radius);
+  counter-increment: step;
+}
+.guide-steps li::before {
+  content: counter(step);
+  position: absolute;
+  left: 14px;
+  top: 14px;
+  width: 26px;
+  height: 26px;
+  display: grid;
+  place-items: center;
+  border-radius: 50%;
+  background: var(--green-soft);
+  color: var(--green-dark);
+  font-weight: 800;
+  font-size: 13px;
+}
+.guide-step-text { display: grid; gap: 4px; }
+.guide-step-text span { color: var(--muted); line-height: 1.5; }
+.guide-step-text b { color: var(--ink); }
+.guide-open { width: auto; justify-self: start; padding: 0 18px; text-decoration: none; }
+
+.guide-paste { display: flex; gap: 8px; }
+.guide-input {
+  flex: 1;
+  min-width: 0;
+  width: 100%;
+  height: 44px;
+  padding: 0 12px;
+  border: 1px solid var(--border);
+  border-radius: 8px;
+  background: var(--bg);
+  color: var(--ink);
+  font-size: 16px;           /* below 16px iOS zooms the page on focus */
+}
+.guide-input::placeholder { color: var(--muted); }
+.guide-input:focus { outline: none; border-color: var(--blue); }
+.guide-start { width: auto; flex: none; min-height: 44px; padding: 0 18px; }
+
+.guide-status:empty { display: none; }
+.guide-status { display: grid; gap: 8px; }
+.guide-msg { margin: 0; line-height: 1.5; }
+.guide-msg.is-idle, .guide-msg.is-busy { color: var(--muted); }
+.guide-msg.is-ok { color: var(--green-dark); }
+.guide-msg.is-warn { color: var(--amber-dark); }
+.guide-msg.is-error { color: var(--red); }
+.guide-action { width: auto; justify-self: start; padding: 0 16px; }
+.guide-progress { display: grid; gap: 6px; margin-top: 8px; color: var(--muted); font-size: 13px; }
+
+@media (max-width: 720px) {
+  /* Already on a phone: the hand-off QR has nothing to add. */
+  .guide-qr { display: none; }
+  .guide-backdrop { align-content: start; padding: 12px; }
+  .guide { padding: 16px; }
+}
+
 /* ---------------- responsive ---------------- */

+/* Wide screens (desktop, PS5 browser): bigger covers so a card doesn't look
+   empty. */
+@media (min-width: 900px) {
+  .game-card { padding: 18px 20px; }
+  .cover { width: 104px; height: 104px; border-radius: 14px; font-size: 22px; }
+  .card-row { gap: 20px; }
+  .card-body h3 { font-size: 19px; margin-bottom: 8px; }
+  .subline { font-size: 13px; }
+  .versions { font-size: 13px; }
+}
+
@media (max-width: 1024px) {
  .app-shell { grid-template-columns: 1fr; }
  .rail {
				`@@ -0,0 +1 @@`
				`custom: ["https://paypal.me/oliverkoester"]`