Document official Decky frontend API compatibility audit

Prepare Frame Control 0.4.33 (#235 )
* Prepare Frame Control 0.4.33 * Record Framey sample and Decky recovery limits --------- Co-authored-by: SAPHID <saphid@users.noreply.github.com>
2026-10-25 14:01:36 +01:00 · 2026-10-25 10:15:48 +00:00 · 2026-10-25 09:51:10 +00:00 · 2026-10-25 09:39:01 +00:00 · 2026-10-25 09:34:39 +00:00 · 2026-10-25 09:30:52 +00:00
30 changed files with 1897 additions and 27 deletions
@@ -1,12 +1,12 @@
 {
  "name": "frame-control",
-  "version": "0.4.31",
+  "version": "0.4.33",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "frame-control",
-      "version": "0.4.31",
+      "version": "0.4.33",
      "license": "MIT",
      "devDependencies": {
        "electron": "^44.4.5",
@@ -1,7 +1,7 @@
 {
  "name": "frame-control",
  "productName": "Frame Control",
-  "version": "0.4.31",
+  "version": "0.4.33",
  "description": "Desktop app for managing a Valve Steam Frame over SSH",
  "private": true,
  "main": "main.js",
@@ -1,6 +1,6 @@
 # What we have tested

-Current for Frame Control **v0.4.31**, 25 October 2026. “Real Frame + physical PC” means an actual headset and a non-virtual computer. “VM only” means a Windows virtual machine, sometimes connected to the real Frame. A CI test or a simulated device is **not** a physical hardware test. The date/version column is the last relevant check, not a promise that every new release was retested on that platform. See each link for the exact procedure and limits.
+Current for Frame Control **v0.4.33**, 25 October 2026. “Real Frame + physical PC” means an actual headset and a non-virtual computer. “VM only” means a Windows virtual machine, sometimes connected to the real Frame. A CI test or a simulated device is **not** a physical hardware test. The date/version column is the last relevant check, not a promise that every new release was retested on that platform. See each link for the exact procedure and limits.

 | Feature | Real Frame + physical PC tested | VM only | Untested or limited | Last check and proof |
 |---|---|---|---|---|
@@ -23,7 +23,7 @@ Current for Frame Control **v0.4.31**, 25 October 2026. “Real Frame + physical
 | Open at login | No Frame needed; Linux autostart file toggled on a physical Linux host with an isolated config directory | No | A full login session and physical Windows/macOS host login have not been checked; OS API calls were unit tested | 25 Oct, v0.4.26: [PR #189](https://github.com/saphid/frame-control/pull/189) |
 | Local Frame Control extensions | Example panel displayed live Frame status in a browser preview; the real Frame served a read-only example in the experimental headset panel | No | No wearer-visible extension view; third-party extensions and physical Windows/macOS extension folders untested | 25 Oct, v0.4.29: [PR #194](https://github.com/saphid/frame-control/pull/194), [PR #201](https://github.com/saphid/frame-control/pull/201), [extension guide](extensions.md) |
 | Experimental Frame Control SteamVR panel | Real Frame OS 0.5.6 installed its user service, registered an overlay, served authenticated live status and a read-only extension, saved a screenshot and short MP4, and removed owned resources | No | Headset was unworn in standby: overlay reported `not_visible`, stereo capture was dark; wearer-visible pixels and controller input are unverified. The new large read-only status screen has browser layout and packaging checks only | 25 Oct, v0.4.29 device check and v0.4.31 status screen: [PR #198](https://github.com/saphid/frame-control/pull/198), [PR #201](https://github.com/saphid/frame-control/pull/201), [PR #220](https://github.com/saphid/frame-control/pull/220), [panel guide](headset-app.md) |
-| Experimental Decky Loader manager | Real Frame OS 0.5.6 ARM64 user-service install, status, update and remove completed; seven official-store plugin backends loaded, and ProtonDB Badges completed managed store install/update/remove | No | Plugin pages, settings, routes, toasts and controller input in VR remain unverified; some plugins need root, x86_64 binaries or Deck-specific hardware | 25 Oct, v0.4.31: [PR #208](https://github.com/saphid/frame-control/pull/208), [compatibility table](decky-frame.md) |
-| Experimental Framey VR plugin panels | No live real-Frame panel test | No | ProtonDB Badges settings rendered and sent a setting call in local Chromium; the fake Frame exercised the store and method bridge. Wearer-visible pixels, controller input and live settings persistence remain unverified | 25 Oct, [PR #223](https://github.com/saphid/frame-control/pull/223), [browser/fake Frame evidence](evidence/framey-browser-2026-10-25.md), [guide](framey-loader.md) |
+| Experimental Decky Loader manager | Real Frame OS 0.5.6 ARM64 user-service install, status, update and remove completed; seven official-store plugin backends loaded, and ProtonDB Badges completed managed store install/update/remove | No | v0.4.33 shared transaction lock and stopped-loader plugin removal have Linux and CI tests, but no live recovery test on the Frame. Plugin pages, settings, routes, toasts and controller input in VR remain unverified; some plugins need root, x86_64 binaries or Deck-specific hardware | 25 Oct, v0.4.31 hardware and v0.4.33 tests: [PR #208](https://github.com/saphid/frame-control/pull/208), [PR #230](https://github.com/saphid/frame-control/pull/230), [PR #234](https://github.com/saphid/frame-control/pull/234), [compatibility table](decky-frame.md) |
+| Experimental Framey VR plugin panels and store | No live real-Frame panel test | No | ProtonDB Badges settings rendered and sent a setting call in local Chromium. Fake Frame tests cover setting read/write through update and reinstall; page tests cover the official JSX runtime, stale job recovery and an author sample bundle. The sample is not published in the store. Wearer-visible pixels, controller input and live settings persistence remain unverified | 25 Oct, v0.4.32–0.4.33: [#223](https://github.com/saphid/frame-control/pull/223), [#224](https://github.com/saphid/frame-control/pull/224), [#225](https://github.com/saphid/frame-control/pull/225), [#226](https://github.com/saphid/frame-control/pull/226), [#227](https://github.com/saphid/frame-control/pull/227), [#229](https://github.com/saphid/frame-control/pull/229), [#231](https://github.com/saphid/frame-control/pull/231), [#232](https://github.com/saphid/frame-control/pull/232), [#233](https://github.com/saphid/frame-control/pull/233), [browser/fake Frame evidence](evidence/framey-browser-2026-10-25.md), [guide](framey-loader.md) |

 Release notes must preserve these limits until a newer recorded check changes them. When a feature is retested, add its date, exact app/Frame version, host type and proof here. The older [v0.3.1 matrix](support-matrix.html) is a historical snapshot and does not describe current coverage.
@@ -42,6 +42,27 @@ files or behavior. The official store's digest checks the archive in transit;
 it does not certify plugin code. Plugins run with the headset user's access.
 For a new plugin, follow the [Frame plugin and extension guide](frame-plugin-author.md).

+### Which of these plugins can open a Framey panel?
+
+The separate Framey panel accepts a Frame Control store install only when its
+`plugin.json` declares `api_version: 2` and it has `dist/index.js`. A backend
+load does not bypass this frontend check. We downloaded the 11 versions above
+again on 25 October 2026 and matched every ZIP's SHA-256 to the official store
+catalogue. All 11 had a frontend bundle, but their manifests differed:
+
+| Manifest in the checked archive | Plugins | Framey panel result |
+| --- | --- | --- |
+| API v2 | ProtonDB Badges 1.3.4 | Eligible; settings rendered in local Chromium. No worn VR check. |
+| API v1 | Bluetooth 3.1.1, HLTB for Deck 2.0.12, SteamGridDB 1.8.1, Storage Cleaner 1.4.0, Wine Cellar 0.2.1, MagicPods 2.0.21 | Framey refuses these frontends. Wine Cellar and MagicPods also fail the ARM64 archive check. |
+| No `api_version` field | CSS Loader 2.1.3, Animation Changer 1.3.2, Audio Loader 1.6.1, PowerTools 2.0.3 | Framey refuses these frontends. Audio Loader and PowerTools also request root. |
+
+The [archive audit record](evidence/framey-official-archive-audit-2026-10-25.json)
+has each store ID, exact version, SHA-256, manifest field, and bundle check.
+This is a static PC inspection. It does not show that any plugin is visible or
+usable in the headset. The earlier real Frame backend checks in the table above
+remain the only device evidence for these versions. A new store version needs a
+new check because its manifest and binaries can change.
+
 The new store transaction was also exercised on the same real Frame:
 **managed loader install → ProtonDB Badges 1.3.4 store install → status →
 store update → store remove → managed loader remove**. Status reported the
@@ -165,6 +186,8 @@ It preserves plugin files and settings so unrelated user data is not deleted.
 Open **Official plugin store** to review a plugin, then confirm each install,
 update, or remove. Root and x86-only plugins are blocked. The manager only
 removes plugin folders that it installed; it leaves other Decky folders alone.
+The desktop app and headset panel share one lock for managed Decky changes.
+If another change is in progress, wait for it to finish and try again.
 Restart Steam or the headset to clear the frontend already injected into its
 current web helper process. No action wipes the headset.

@@ -0,0 +1,116 @@
+{
+  "checkedAtUtc": "2026-10-25",
+  "source": "https://plugins.deckbrew.xyz/plugins",
+  "method": "Downloaded exact current official store versions; local SHA-256 matched each store hash; inspected ZIP plugin.json and dist/index.js without running plugin code.",
+  "limit": "Static inspection on PC. Prior backend load results are documented in docs/decky-frame.md; VR visibility and controller input remain unverified.",
+  "plugins": [
+    {
+      "storeId": 7,
+      "name": "CSS Loader",
+      "storeVersion": "2.1.3",
+      "sha256": "99beaf1374af82408e6d056e0b0147e5fca544e1035fa7ab88419231697bc231",
+      "manifestApiVersion": null,
+      "manifestFlags": [],
+      "frontendBundle": true
+    },
+    {
+      "storeId": 14,
+      "name": "ProtonDB Badges",
+      "storeVersion": "1.3.4",
+      "sha256": "90a3453ac02709cad64096e7539fd8141fa56f99ae3441fc24a4990dc9684358",
+      "manifestApiVersion": 2,
+      "manifestFlags": [],
+      "frontendBundle": true
+    },
+    {
+      "storeId": 16,
+      "name": "Audio Loader",
+      "storeVersion": "1.6.1",
+      "sha256": "fd5a090c2e2cd4da6723d7bd08937ab31b9f8d4663510431713da531343e303f",
+      "manifestApiVersion": null,
+      "manifestFlags": [
+        "_root"
+      ],
+      "frontendBundle": true
+    },
+    {
+      "storeId": 18,
+      "name": "Bluetooth",
+      "storeVersion": "3.1.1",
+      "sha256": "f07f7b74f31da15b5e3a8234a3f00faa01365b56b8f496aca7bb79120be7b8a5",
+      "manifestApiVersion": 1,
+      "manifestFlags": [],
+      "frontendBundle": true
+    },
+    {
+      "storeId": 21,
+      "name": "PowerTools",
+      "storeVersion": "2.0.3",
+      "sha256": "47614f53b8c538c4caa15f89a01e4ab106fa328e89f78545bacb3166d104d964",
+      "manifestApiVersion": null,
+      "manifestFlags": [
+        "root",
+        "global-dfl"
+      ],
+      "frontendBundle": true
+    },
+    {
+      "storeId": 23,
+      "name": "Animation Changer",
+      "storeVersion": "1.3.2",
+      "sha256": "f2c62b90ca60d8a80b6d0f75d8027552b1509c7a05842c6f4a24a9072846d133",
+      "manifestApiVersion": null,
+      "manifestFlags": [],
+      "frontendBundle": true
+    },
+    {
+      "storeId": 26,
+      "name": "HLTB for Deck",
+      "storeVersion": "2.0.12",
+      "sha256": "bd54a23b0b8ec0798aa590e5be236522a593529d7680e77fb888e2971bf3d558",
+      "manifestApiVersion": 1,
+      "manifestFlags": [],
+      "frontendBundle": true
+    },
+    {
+      "storeId": 36,
+      "name": "SteamGridDB",
+      "storeVersion": "1.8.1",
+      "sha256": "e84f5b1f111af8862b06218479491fbf61036e1bfd9f16f93f9901e9b9ebc5e0",
+      "manifestApiVersion": 1,
+      "manifestFlags": [
+        "debug"
+      ],
+      "frontendBundle": true
+    },
+    {
+      "storeId": 50,
+      "name": "Storage Cleaner",
+      "storeVersion": "1.4.0",
+      "sha256": "1afa1a6f129c5d419de0e0bf0f6db8d8e50385a5659179346e996031ea372591",
+      "manifestApiVersion": 1,
+      "manifestFlags": [],
+      "frontendBundle": true
+    },
+    {
+      "storeId": 68,
+      "name": "Wine Cellar",
+      "storeVersion": "0.2.1",
+      "sha256": "7e077b933c234414d172b5c6d1c804b026bf39fa4e18e6663495a282637031e8",
+      "manifestApiVersion": 1,
+      "manifestFlags": [
+        "debug"
+      ],
+      "frontendBundle": true
+    },
+    {
+      "storeId": 82,
+      "name": "MagicPods",
+      "storeVersion": "2.0.21",
+      "sha256": "abe2eef5788cb3ff6e73fcb9783e30a54b127e28c761a9bf99e64ab5fc4be9ab",
+      "manifestApiVersion": 1,
+      "manifestFlags": [],
+      "frontendBundle": true
+    }
+  ]
+}
@@ -32,6 +32,9 @@ Frame Control now has an experimental [Framey panel host](framey-loader.md)
 for API v2 Decky frontend bundles. It renders common settings controls in the
 separate SteamVR dashboard panel, but Steam library and store page patches
 remain unavailable. Wearer-visible use is not yet verified.
+The [settings sample](../examples/framey-settings/README.md) shows an official
+Decky JSX build, backend persistence, a toggle and a local toast. Framey offers
+only official-store-owned plugins in its VR panel.

 To test safely, use a separate Frame Control managed Decky install, verify the
 ZIP digest from the official store, install one plugin at a time, and inspect
@@ -47,9 +50,10 @@ none of these frontend controls has passed a worn-headset check yet.
 | Decky API or UI feature | Framey behavior | Verified in |
 | --- | --- | --- |
 | `definePlugin` with `content`, `titleView` | Renders a React panel and optional title | Local browser with ProtonDB Badges; host unit test |
+| Official `@decky/rollup` JSX (`SP_JSX.jsx`, `jsxs`, `Fragment`) | Creates React elements in the isolated panel | Sample bundle smoke test; host unit test |
 | `PanelSection`, rows, buttons, toggles, dropdowns | Local touch-sized controls | Local browser and host unit test |
 | Optional `settings`, `frameyQuickActions` | Separate settings tab; up to eight actions with result text | Host unit test; these fields are Framey additions |
-| `serverAPI.call` / `callable` | Calls only that plugin's Decky Python backend via the headset service | Fake Frame e2e for get/set setting; host unit test |
+| `serverAPI.call` / `callable` | Calls only that plugin's Decky Python backend via the headset service | Fake Frame e2e for setting read/write across CEF calls, update, and reinstall; host unit test. Real Decky persistence remains unverified. |
 | `toaster.toast` | Visible toast inside the plugin panel; `dismiss` and optional `onClick` | Host unit test; no Steam system notification |
 | `routerHook.addRoute` / `removeRoute`, `Navigation.Navigate` / `NavigateBack` | Local routes inside this plugin panel only | Host unit test |
 | `routerHook.addPatch`, global components | No-op; cannot patch Steam routes | Not applicable |
@@ -54,22 +54,35 @@ has no supported injection target in the Frame Control panel.
 The [browser and fake Frame evidence](evidence/framey-browser-2026-10-25.md)
 records exactly what was exercised.

+The fake Frame integration test now writes a Decky setting through Framey's
+scoped backend endpoint, reads it in a new CEF request, updates the plugin,
+then checks it again. It also confirms removal blocks method calls and a
+reinstall can read the retained setting. This tests the bridge and fixture;
+real Decky settings persistence on a worn Frame is still unverified.
+
 The in-headset **Open official store** view loads the full official catalogue.
 Search matches names, authors, and descriptions. Filters show non-root plugins
 or installed plugins, and Previous/Next buttons browse 20 results per page.
 The root label is a compatibility warning; other APIs are checked only when a
 plugin is opened. The store still needs the managed Decky user service running
-before its Install or Update buttons are enabled.
+before its Install or Update buttons are enabled. If a plugin prevents Decky
+from starting, Remove remains available for Frame Control-owned plugins while
+the managed service is stopped; it does not restart the service.

 Install, Update, and Remove show the current job stage in the headset panel.
 The store verifies each downloaded archive and the headset applies it with a
 rollback if Decky cannot start. The panel remembers the current job ID for this
 browser session, so **Check result** can resume polling after a navigation or
 temporary connection error. Refresh the installed list before starting another
-operation after an error.
+operation after an error. If Frame Control restarts, it cannot recover the old
+job result. The panel clears that job ID and asks you to refresh the installed
+list before making another change.

 ## For plugin authors

+Start with the [Framey settings sample](../examples/framey-settings/README.md)
+for a buildable Decky API v2 panel and Python settings backend.
+
 Publish a normal [Decky store](https://plugins.deckbrew.xyz/) API v2 release
 with `plugin.json`, a single `dist/index.js` ESM frontend entry point, and a
 Python backend if needed. Give the frontend a `content` React element returned
@@ -0,0 +1 @@
+node_modules/
@@ -0,0 +1,37 @@
+# Framey settings sample
+
+This is a small Decky API v2 plugin for authors. Its panel uses the official
+`@decky/api`, `@decky/ui`, and `@decky/rollup` packages. A toggle calls a Python
+backend method, stores one boolean under `decky.decky_SETTINGS_DIR`,
+and reads it back when the panel opens. The backend rejects other keys and
+values. The frontend also shows a local toast after a successful save.
+
+## Build
+
+From this directory, run:
+
+```sh
+pnpm install --frozen-lockfile
+pnpm build
+pnpm exec tsc --noEmit
+```
+
+The committed `dist/index.js` is the built frontend. For a Decky release ZIP,
+put `plugin.json`, `main.py`, and `dist/index.js` inside one top-level plugin
+folder. Publish it through the official Decky store if you want Frame Control's
+managed installer to offer it. Framey deliberately opens only plugins that the
+official store installed and marked as owned; copying this example into the
+plugin directory does not enable its VR panel.
+
+## Test and adapt
+
+Run `python3 -m unittest discover -s tests -p test_framey_sample.py` from the
+repository root. It checks backend persistence and evaluates the built bundle
+against Framey's actual host script. The fake Frame store flow is exercised by
+the repository's e2e suite. No worn-headset visibility or controller-input test
+has passed for this sample yet.
+
+The plugin needs no root access or system changes. Its settings remain after
+the managed plugin folder is removed, following Decky's settings behavior.
+For a production plugin, add migration and recovery handling for damaged
+settings files, and test every UI path in a worn headset.
@@ -0,0 +1,71 @@
+const manifest = {"name":"Framey Settings Sample"};
+const API_VERSION = 2;
+const internalAPIConnection = window.__DECKY_SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED_deckyLoaderAPIInit;
+if (!internalAPIConnection) {
+    throw new Error('[@decky/api]: Failed to connect to the loader as as the loader API was not initialized. This is likely a bug in Decky Loader.');
+}
+let api;
+try {
+    api = internalAPIConnection.connect(API_VERSION, manifest.name);
+}
+catch {
+    api = internalAPIConnection.connect(1, manifest.name);
+    console.warn(`[@decky/api] Requested API version ${API_VERSION} but the running loader only supports version 1. Some features may not work.`);
+}
+if (api._version != API_VERSION) {
+    console.warn(`[@decky/api] Requested API version ${API_VERSION} but the running loader only supports version ${api._version}. Some features may not work.`);
+}
+const callable = api.callable;
+const toaster = api.toaster;
+const definePlugin = (fn) => {
+    return (...args) => {
+        return fn(...args);
+    };
+};
+
+const getSetting = callable('get_setting');
+const setSetting = callable('set_setting');
+function Content() {
+    const [enabled, setEnabled] = SP_REACT.useState(false);
+    const [busy, setBusy] = SP_REACT.useState(true);
+    const [message, setMessage] = SP_REACT.useState('Loading setting…');
+    async function refresh() {
+        setBusy(true);
+        try {
+            const value = await getSetting('enabled', false);
+            setEnabled(value);
+            setMessage(`Saved setting: ${value ? 'on' : 'off'}`);
+        }
+        catch (error) {
+            setMessage(`Could not read setting: ${String(error)}`);
+        }
+        finally {
+            setBusy(false);
+        }
+    }
+    SP_REACT.useEffect(() => { void refresh(); }, []);
+    async function change(value) {
+        setBusy(true);
+        try {
+            await setSetting('enabled', value);
+            setEnabled(value);
+            setMessage(`Saved setting: ${value ? 'on' : 'off'}`);
+            toaster.toast({ title: 'Framey sample', body: 'Setting saved' });
+        }
+        catch (error) {
+            setMessage(`Could not save setting: ${String(error)}`);
+        }
+        finally {
+            setBusy(false);
+        }
+    }
+    return SP_JSX.jsxs(DFL.PanelSection, { title: "Framey settings sample", children: [SP_JSX.jsx(DFL.PanelSectionRow, { children: SP_JSX.jsx(DFL.ToggleField, { label: "Example setting", description: "Stored by the Decky Python backend", checked: enabled, disabled: busy, onChange: (value) => { void change(value); } }) }), SP_JSX.jsx(DFL.PanelSectionRow, { children: SP_JSX.jsx(DFL.ButtonItem, { disabled: busy, onClick: () => { void refresh(); }, children: "Reload saved setting" }) }), SP_JSX.jsx(DFL.PanelSectionRow, { children: SP_JSX.jsx("p", { role: "status", children: message }) })] });
+}
+var index = definePlugin(() => ({
+    name: 'Framey Settings Sample',
+    icon: SP_JSX.jsx("span", { "aria-hidden": "true", children: "\u2699" }),
+    content: SP_JSX.jsx(Content, {}),
+}));
+
+export { index as default };
+//# sourceMappingURL=index.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sources":["decky://decky/plugin/Framey%20Settings%20Sample/node_modules/.pnpm/@decky+api@1.1.3/node_modules/@decky/api/dist/index.js","decky://decky/plugin/Framey%20Settings%20Sample/src/index.tsx"],"sourcesContent":["import _manifest from '@decky/manifest';\nexport * from \"./types\";\nconst manifest = _manifest;\nconst API_VERSION = 2;\nif (!manifest?.name) {\n    throw new Error('[@decky/api]: Failed to find plugin manifest.');\n}\nconst internalAPIConnection = window.__DECKY_SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED_deckyLoaderAPIInit;\nif (!internalAPIConnection) {\n    throw new Error('[@decky/api]: Failed to connect to the loader as as the loader API was not initialized. This is likely a bug in Decky Loader.');\n}\nlet api;\ntry {\n    api = internalAPIConnection.connect(API_VERSION, manifest.name);\n}\ncatch {\n    api = internalAPIConnection.connect(1, manifest.name);\n    console.warn(`[@decky/api] Requested API version ${API_VERSION} but the running loader only supports version 1. Some features may not work.`);\n}\nif (api._version != API_VERSION) {\n    console.warn(`[@decky/api] Requested API version ${API_VERSION} but the running loader only supports version ${api._version}. Some features may not work.`);\n}\nexport const call = api.call;\nexport const callable = api.callable;\nexport const addEventListener = api.addEventListener;\nexport const removeEventListener = api.removeEventListener;\nexport const routerHook = api.routerHook;\nexport const toaster = api.toaster;\nexport const openFilePicker = api.openFilePicker;\nexport const executeInTab = api.executeInTab;\nexport const injectCssIntoTab = api.injectCssIntoTab;\nexport const removeCssFromTab = api.removeCssFromTab;\nexport const fetchNoCors = api.fetchNoCors;\nexport const getExternalResourceURL = api.getExternalResourceURL;\nexport const useQuickAccessVisible = api.useQuickAccessVisible;\nexport const definePlugin = (fn) => {\n    return (...args) => {\n        return fn(...args);\n    };\n};\n","import {callable, definePlugin, toaster} from '@decky/api';\nimport {ButtonItem, PanelSection, PanelSectionRow, ToggleField} from '@decky/ui';\nimport {useEffect, useState} from 'react';\n\nconst getSetting = callable<[key: string, fallback: boolean], boolean>('get_setting');\nconst setSetting = callable<[key: string, value: boolean], boolean>('set_setting');\n\nfunction Content() {\n  const [enabled, setEnabled] = useState(false);\n  const [busy, setBusy] = useState(true);\n  const [message, setMessage] = useState('Loading setting…');\n\n  async function refresh() {\n    setBusy(true);\n    try {\n      const value = await getSetting('enabled', false);\n      setEnabled(value);\n      setMessage(`Saved setting: ${value ? 'on' : 'off'}`);\n    } catch (error) {\n      setMessage(`Could not read setting: ${String(error)}`);\n    } finally {\n      setBusy(false);\n    }\n  }\n\n  useEffect(() => {void refresh();}, []);\n\n  async function change(value: boolean) {\n    setBusy(true);\n    try {\n      await setSetting('enabled', value);\n      setEnabled(value);\n      setMessage(`Saved setting: ${value ? 'on' : 'off'}`);\n      toaster.toast({title: 'Framey sample', body: 'Setting saved'});\n    } catch (error) {\n      setMessage(`Could not save setting: ${String(error)}`);\n    } finally {\n      setBusy(false);\n    }\n  }\n\n  return <PanelSection title=\"Framey settings sample\">\n    <PanelSectionRow>\n      <ToggleField label=\"Example setting\" description=\"Stored by the Decky Python backend\"\n        checked={enabled} disabled={busy} onChange={(value: boolean) => {void change(value);}} />\n    </PanelSectionRow>\n    <PanelSectionRow><ButtonItem disabled={busy} onClick={() => {void refresh();}}>Reload saved setting</ButtonItem></PanelSectionRow>\n    <PanelSectionRow><p role=\"status\">{message}</p></PanelSectionRow>\n  </PanelSection>;\n}\n\nexport default definePlugin(() => ({\n  name: 'Framey Settings Sample',\n  icon: <span aria-hidden=\"true\">⚙</span>,\n  content: <Content />,\n}));\n"],"names":[],"mappings":"AAEA,MAAA,QAAA,GAAiB,CAAA,MAAA,CAAA,wBAAA,CAAS;AAC1B,MAAA,WAAA,GAAA,CAAA;AAIA,MAAA,qBAAA,GAAA,MAAA,CAAA,2EAAA;AACA,IAAA,CAAA,qBAAA,EAAA;AACA,IAAA,MAAA,IAAA,KAAA,CAAA,+HAAA,CAAA;AACA;AACA,IAAA,GAAA;AACA,IAAA;AACA,IAAA,GAAA,GAAA,qBAAA,CAAA,OAAA,CAAA,WAAA,EAAA,QAAA,CAAA,IAAA,CAAA;AACA;AACA,MAAA;AACA,IAAA,GAAA,GAAA,qBAAA,CAAA,OAAA,CAAA,CAAA,EAAA,QAAA,CAAA,IAAA,CAAA;AACA,IAAA,OAAA,CAAA,IAAA,CAAA,CAAA,mCAAA,EAAA,WAAA,CAAA,4EAAA,CAAA,CAAA;AACA;AACA,IAAA,GAAA,CAAA,QAAA,IAAA,WAAA,EAAA;AACA,IAAA,OAAA,CAAA,IAAA,CAAA,CAAA,mCAAA,EAAA,WAAA,CAAA,8CAAA,EAAA,GAAA,CAAA,QAAA,CAAA,6BAAA,CAAA,CAAA;AACA;AAEA,MAAA,QAAA,GAAA,GAAA,CAAA,QAAA;AAIA,MAAA,OAAA,GAAA,GAAA,CAAA,OAAA;AAQA,MAAA,YAAA,GAAA,CAAA,EAAA,KAAA;AACA,IAAA,OAAA,CAAA,GAAA,IAAA,KAAA;AACA,QAAA,OAAA,EAAA,CAAA,GAAA,IAAA,CAAA;AACA,IAAA,CAAA;AACA,CAAA;;ACnCA,MAAA,UAAA,GAAA,QAAA,CAAA,aAAA,CAAA;AACA,MAAA,UAAA,GAAA,QAAA,CAAA,aAAA,CAAA;AAEA,SAAA,OAAA,Line truncated
@@ -0,0 +1,41 @@
+"""Small, unprivileged Decky backend for the Framey author example."""
+import json
+import os
+from pathlib import Path
+import tempfile
+import decky
+
+
+def settings_file():
+    # Decky provides this per-plugin path through its official Python module.
+    return Path(decky.decky_SETTINGS_DIR) / 'settings.json'
+
+
+class Plugin:
+    async def get_setting(self, key: str, default=False):
+        if key != 'enabled':
+            raise ValueError('Unknown setting')
+        try:
+            stored = json.loads(settings_file().read_text())
+        except FileNotFoundError:
+            return default
+        return stored.get(key, default)
+
+    async def set_setting(self, key: str, value: bool):
+        if key != 'enabled' or type(value) is not bool:
+            raise ValueError('Expected an enabled boolean')
+        target = settings_file()
+        target.parent.mkdir(mode=0o700, parents=True, exist_ok=True)
+        temporary = None
+        try:
+            with tempfile.NamedTemporaryFile('w', encoding='utf-8', dir=target.parent,
+                                             prefix='.settings-', delete=False) as output:
+                temporary = Path(output.name)
+                json.dump({'enabled': value}, output)
+                output.write('\n')
+            temporary.chmod(0o600)
+            os.replace(temporary, target)
+        finally:
+            if temporary is not None:
+                temporary.unlink(missing_ok=True)
+        return True
@@ -0,0 +1,20 @@
+{
+  "name": "framey-settings-sample",
+  "version": "0.1.0",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "build": "rollup -c"
+  },
+  "dependencies": {
+    "@decky/api": "^1.1.3",
+    "@decky/ui": "^4.11.0",
+    "react": "^19.1.1"
+  },
+  "devDependencies": {
+    "@decky/rollup": "^1.0.2",
+    "@types/react": "^19.1.1",
+    "rollup": "^4.53.3",
+    "typescript": "^5.6.2"
+  }
+}
@@ -0,0 +1,6 @@
+{
+  "name": "Framey Settings Sample",
+  "author": "Frame Control contributors",
+  "flags": [],
+  "api_version": 2
+}
@@ -0,0 +1,3 @@
+import deckyPlugin from '@decky/rollup';
+
+export default deckyPlugin({});
@@ -0,0 +1,56 @@
+import {callable, definePlugin, toaster} from '@decky/api';
+import {ButtonItem, PanelSection, PanelSectionRow, ToggleField} from '@decky/ui';
+import {useEffect, useState} from 'react';
+
+const getSetting = callable<[key: string, fallback: boolean], boolean>('get_setting');
+const setSetting = callable<[key: string, value: boolean], boolean>('set_setting');
+
+function Content() {
+  const [enabled, setEnabled] = useState(false);
+  const [busy, setBusy] = useState(true);
+  const [message, setMessage] = useState('Loading setting…');
+
+  async function refresh() {
+    setBusy(true);
+    try {
+      const value = await getSetting('enabled', false);
+      setEnabled(value);
+      setMessage(`Saved setting: ${value ? 'on' : 'off'}`);
+    } catch (error) {
+      setMessage(`Could not read setting: ${String(error)}`);
+    } finally {
+      setBusy(false);
+    }
+  }
+
+  useEffect(() => {void refresh();}, []);
+
+  async function change(value: boolean) {
+    setBusy(true);
+    try {
+      await setSetting('enabled', value);
+      setEnabled(value);
+      setMessage(`Saved setting: ${value ? 'on' : 'off'}`);
+      toaster.toast({title: 'Framey sample', body: 'Setting saved'});
+    } catch (error) {
+      setMessage(`Could not save setting: ${String(error)}`);
+    } finally {
+      setBusy(false);
+    }
+  }
+
+  return <PanelSection title="Framey settings sample">
+    <PanelSectionRow>
+      <ToggleField label="Example setting" description="Stored by the Decky Python backend"
+        checked={enabled} disabled={busy} onChange={(value: boolean) => {void change(value);}} />
+    </PanelSectionRow>
+    <PanelSectionRow><ButtonItem disabled={busy} onClick={() => {void refresh();}}>Reload saved setting</ButtonItem></PanelSectionRow>
+    <PanelSectionRow><p role="status">{message}</p></PanelSectionRow>
+  </PanelSection>;
+}
+
+export default definePlugin(() => ({
+  name: 'Framey Settings Sample',
+  icon: <span aria-hidden="true">⚙</span>,
+  content: <Content />,
+}));
@@ -0,0 +1,13 @@
+{
+  "compilerOptions": {
+    "outDir": "dist",
+    "module": "ESNext",
+    "target": "ES2020",
+    "jsx": "react-jsx",
+    "moduleResolution": "node",
+    "strict": true,
+    "esModuleInterop": true,
+    "skipLibCheck": true
+  },
+  "include": ["src"]
+}
@@ -109,13 +109,25 @@ u=h/'.config/systemd/user/frame-control-decky.service'; u.parent.mkdir(parents=T
                            {'id':123,'method':'get_setting','args':['theme','dark']})['result'], 'dark')
        self.assertTrue(ok('POST', '/api/framey/method',
                           {'id':123,'method':'set_setting','args':['theme','light']})['result'])
+        self.assertEqual(ok('POST', '/api/framey/method',
+                            {'id':123,'method':'get_setting','args':['theme','dark']})['result'], 'light')
        StoreFixture.release = 1
        job = finished(ok('POST', '/api/decky/plugin',
                          {'action':'update','id':123,'acknowledged':True}))
        self.assertFalse(job.get('error'), job)
        self.assertEqual(ok('GET', '/api/decky')['plugins'][0]['version'], '1.1.0')
+        self.assertEqual(ok('POST', '/api/framey/method',
+                            {'id':123,'method':'get_setting','args':['theme','dark']})['result'], 'light')
        job = finished(ok('POST', '/api/decky/plugin',
                          {'action':'remove','id':123,'acknowledged':True}))
        self.assertFalse(job.get('error'), job)
        self.assertEqual(ok('GET', '/api/decky')['plugins'], [])
        self.assertEqual(ssh('test -e ~/.local/share/frame-control/decky/plugins/sample-panel && echo yes || echo no').strip(), 'no')
+        status, _, _ = api('POST', '/api/framey/method',
+                           {'id':123,'method':'get_setting','args':['theme','dark']})
+        self.assertEqual(status, 400)  # No method calls while the plugin is removed.
+        job = finished(ok('POST', '/api/decky/plugin',
+                          {'action':'install','id':123,'acknowledged':True}))
+        self.assertFalse(job.get('error'), job)
+        self.assertEqual(ok('POST', '/api/framey/method',
+                            {'id':123,'method':'get_setting','args':['theme','dark']})['result'], 'light')
@@ -30,8 +30,14 @@ function build(steam) {
  const deckyBackend = {async call(route, plugin, method, ...args) {
    if (route !== 'loader/call_plugin_method' || plugin !== 'Sample Panel')
      throw Error('unexpected Decky plugin route');
-    if (method === 'get_setting') return args[1];
-    if (method === 'set_setting') return true;
+    const settings = (steam.decky_settings ||= {});
+    const owned = (settings[plugin] ||= {});
+    if (method === 'get_setting')
+      return Object.hasOwn(owned, args[0]) ? owned[args[0]] : args[1];
+    if (method === 'set_setting') {
+      owned[args[0]] = args[1];
+      return true;
+    }
    throw Error('method unavailable in fake Decky backend');
  }};
  const findShortcut = id => steam.shortcuts.find(s => s.appid === Number(id));
@@ -19,6 +19,15 @@ const context=vm.createContext({window,document:{getElementById:id=>{
  navigator:{language:'en'}, parent,addEventListener:(type,handler)=>listeners.push({type,handler}),
  setTimeout:()=>1,clearTimeout(){}});
 vm.runInContext(testSource,context);
+// Official @decky/rollup bundles use the automatic JSX runtime, including keyed lists.
+const jsx=window.SP_JSX.jsx('p',{id:'message',children:'Saved'},'message-key');
+assert.equal(jsx.type,'p');
+assert.equal(jsx.props.id,'message');
+assert.equal(jsx.props.key,'message-key');
+assert.deepEqual(jsx.children,['Saved']);
+const fragments=window.SP_JSX.jsxs(window.SP_JSX.Fragment,{children:['one','two']});
+assert.equal(fragments.type,React.Fragment);
+assert.deepEqual(fragments.children,[['one','two']]);
 const nodes=(tree,type)=>[...(tree?.type===type?[tree]:[]),...(tree?.children||[]).flatMap(child=>nodes(child,type))];
 let called=0;
 const plugin={content:{type:'content'},settings:{type:'settings'},titleView:{type:'title'},
@@ -0,0 +1,25 @@
+import assert from 'node:assert/strict';
+import {readFileSync} from 'node:fs';
+import vm from 'node:vm';
+
+const host=readFileSync(new URL('../../ui/framey-host.js',import.meta.url),'utf8')
+  .replace(/\n  start\(\);\n\}\)\(\);\s*$/, '\n})();');
+const bundle=readFileSync(new URL('../../examples/framey-settings/dist/index.js',import.meta.url),'utf8');
+assert.match(bundle,/SP_JSX\.jsx/);
+const React={Fragment:Symbol('fragment'),Component:class {},
+  createElement:(type,props,...children)=>({type,props:props||{},children}),
+  useState:value=>[value,()=>{}],useEffect(){},isValidElement:value=>!!value?.type};
+const window={React,ReactDOM:{createRoot:()=>({render(){}})},addEventListener(){}};
+const context=vm.createContext({window,document:{getElementById:()=>({})},
+  navigator:{language:'en'},parent:{postMessage(){}},addEventListener(){},
+  setTimeout:()=>1,clearTimeout(){}});
+vm.runInContext(host,context);
+Object.assign(context,{SP_REACT:window.SP_REACT,SP_JSX:window.SP_JSX,DFL:window.DFL});
+vm.runInContext(bundle.replace(/export \{ index as default \};/, 'window.sample = index;'),context);
+const plugin=window.sample();
+assert.equal(plugin.name,'Framey Settings Sample');
+assert.equal(typeof plugin.content.type,'function');
+const content=plugin.content.type();
+assert.equal(content.type,window.DFL.PanelSection);
+assert.equal(content.props.title,'Framey settings sample');
+assert.equal(content.children[0][0].type,window.DFL.PanelSectionRow);
@@ -60,6 +60,16 @@ assert.equal(el('deckyJobStatus').textContent,'Installed Plugin 2');
 assert.equal(el('deckyJobProgress').value,100);
 assert.equal(el('deckyJobCheck').hidden,true);
 assert.equal(session.has('frameyPluginJob'),false);
+// A stopped Decky service must still offer recovery by removing its owned plugin.
+ctx.mockApi=async path => path==='/api/decky' ?
+  {managed:true,running:false,plugins:[{storeId:2,name:'Plugin 2',version:'1.0'}]} :
+  Promise.reject(Error(`unexpected ${path}`));
+vm.runInContext('api=mockApi',ctx);
+await vm.runInContext('refreshDecky()',ctx);
+assert.equal(el('deckyInstalled').children[0].children[2].disabled,false);
+el('deckySearch').value='';el('deckyStoreFilter').value='all';
+vm.runInContext('showDeckyStore()',ctx);
+assert.equal(el('deckyStoreList').children[1].children[1].disabled,true);
 ctx.mockApi=async path => {
  if(path==='/api/decky/plugin')return {job:'job-2'};
  if(path.startsWith('/api/job'))return {done:true,error:'archive digest mismatch'};
@@ -70,3 +80,17 @@ vm.runInContext('api=mockApi',ctx);
 await vm.runInContext('deckyChange("update",{id:2,name:"Plugin 2"})',ctx);
 assert.match(el('deckyJobStatus').textContent,/Error: archive digest mismatch/);
 assert.equal(session.has('frameyPluginJob'),false);
+
+// A saved job does not survive a server restart. Clear it instead of offering
+// Check result forever for an ID that the new server cannot know.
+session.set('frameyPluginJob',JSON.stringify({job:'old-job',action:'install',name:'Plugin 2'}));
+ctx.mockApi=async path => {
+  if(path.startsWith('/api/job'))throw Error('no such job (the app may have restarted)');
+  if(path==='/api/decky')return {running:true,plugins:[]};
+  throw Error(`unexpected ${path}`);
+};
+vm.runInContext('api=mockApi',ctx);
+await vm.runInContext('checkDeckyJob()',ctx);
+assert.match(el('deckyJobStatus').textContent,/app restarted and lost this job result/);
+assert.equal(el('deckyJobCheck').hidden,true);
+assert.equal(session.has('frameyPluginJob'),false);
@@ -15,6 +15,7 @@ import zipfile

 sys.path.insert(0, str(Path(__file__).resolve().parent.parent / 'ui'))
 import frame_decky_store
+import frame_decky


 def archive(flags=(), extra=None):
@@ -111,8 +112,66 @@ class StoreTransaction(unittest.TestCase):
        self.assertNotEqual(result.returncode, 0)
        self.assertTrue(external.exists())

+    def test_remove_while_service_is_stopped_does_not_restart_it(self):
+        data, _ = archive()
+        self.assertEqual(self.apply('install', data).returncode, 0)
+        fake = Path(self.tmp.name) / 'systemctl'
+        fake.write_text('#!/bin/sh\nif [ "$2" = is-active ]; then exit 1; fi\n'
+                        'echo "$*" >> "$HOME/service-calls"\nexit 0\n')
+        result = self.apply('remove')
+        self.assertEqual(result.returncode, 0, result.stderr)
+        self.assertFalse(self.folder.exists())
+        self.assertEqual((Path(self.tmp.name) / 'service-calls').read_text().splitlines(),
+                         ['--user stop frame-control-decky.service'])
+
+    def test_shared_lock_rejects_plugin_and_loader_changes(self):
+        import fcntl
+
+        lock_path = Path(self.tmp.name) / '.local/share/frame-control/decky-transaction.lock'
+        lock_path.parent.mkdir(parents=True, exist_ok=True)
+        data, _ = archive()
+        with lock_path.open('w+b') as held:
+            fcntl.flock(held, fcntl.LOCK_EX | fcntl.LOCK_NB)
+            plugin = self.apply('install', data)
+            loader = subprocess.run([sys.executable, '-', 'remove', 'none', 'none', 'none'],
+                                    input=frame_decky.APPLY, text=True, capture_output=True,
+                                    env=self.env, timeout=15)
+            self.assertNotEqual(plugin.returncode, 0)
+            self.assertNotEqual(loader.returncode, 0)
+            self.assertIn('Another Decky change is in progress', plugin.stderr)
+            self.assertIn('Another Decky change is in progress', loader.stderr)
+            self.assertFalse(self.folder.exists())
+
+        installed = self.apply('install', data)
+        self.assertEqual(installed.returncode, 0, installed.stderr)
+        self.assertEqual(self.apply('remove').returncode, 0)
+

 class StoreHost(unittest.TestCase):
+    def test_stopped_managed_service_allows_removing_owned_plugin(self):
+        state = {'managed': True, 'running': False, 'plugins':
+                 [{'storeId': 42, 'folder': 'Example', 'name': 'Example', 'version': '1.0'}]}
+        calls = []
+        with patch.object(frame_decky_store.frame_decky, 'status', return_value=state), \
+             patch.object(frame_decky_store, 'catalog') as network:
+            result = frame_decky_store.change(lambda command, **kwargs: calls.append(command) or '{}',
+                                               'remove', 42)
+        self.assertEqual(result, {})
+        self.assertEqual(len(calls), 1)
+        network.assert_not_called()
+
+    def test_renamed_store_plugin_cannot_be_installed_twice(self):
+        state = {'managed': True, 'running': True, 'plugins':
+                 [{'storeId': 42, 'folder': 'OldFolder', 'name': 'Old Name', 'version': '1.0'}]}
+        catalog = [{'id': 42, 'name': 'New Name', 'root': False, 'sha256': 'a' * 64, 'version': '2.0'}]
+        with patch.object(frame_decky_store.frame_decky, 'status', return_value=state), \
+             patch.object(frame_decky_store, 'catalog', return_value=catalog) as network, \
+             patch.object(frame_decky_store.urllib.request, 'urlopen', side_effect=AssertionError('No download expected')):
+            with self.assertRaisesRegex(ValueError, 'already installed'):
+                frame_decky_store.change(lambda *args, **kwargs: self.fail('No headset write expected'),
+                                         'install', 42)
+            network.assert_not_called()
+
    def test_owned_plugin_can_be_removed_without_store_network(self):
        state = {'managed': True, 'running': True, 'plugins':
                 [{'storeId': 42, 'folder': 'Example', 'name': 'Example', 'version': '1.0'}]}
@@ -0,0 +1,50 @@
+"""The author example stores settings as a normal Decky user plugin."""
+import asyncio
+import importlib.util
+from pathlib import Path
+import subprocess
+import sys
+import tempfile
+import types
+import unittest
+from unittest.mock import patch
+
+
+EXAMPLE = Path(__file__).resolve().parents[1] / 'examples/framey-settings/main.py'
+
+
+def backend(settings_dir):
+    decky = types.ModuleType('decky')
+    decky.decky_SETTINGS_DIR = settings_dir
+    spec = importlib.util.spec_from_file_location('framey_sample', EXAMPLE)
+    module = importlib.util.module_from_spec(spec)
+    with patch.dict(sys.modules, {'decky': decky}):
+        spec.loader.exec_module(module)
+    return module.Plugin()
+
+
+class SamplePlugin(unittest.TestCase):
+    def test_frontend_bundle_loads_in_framey_host(self):
+        result = subprocess.run(['node', str(Path(__file__).parent / 'page/framey_sample.mjs')],
+                                capture_output=True, text=True, timeout=10)
+        self.assertEqual(result.returncode, 0, result.stderr)
+
+    def test_setting_survives_backend_instance_restart(self):
+        with tempfile.TemporaryDirectory() as folder:
+            first = backend(folder)
+            self.assertFalse(asyncio.run(first.get_setting('enabled', False)))
+            self.assertTrue(asyncio.run(first.set_setting('enabled', True)))
+            second = backend(folder)
+            self.assertTrue(asyncio.run(second.get_setting('enabled', False)))
+            self.assertTrue((Path(folder) / 'settings.json').is_file())
+
+    def test_backend_rejects_unknown_keys_and_non_boolean_values(self):
+        with tempfile.TemporaryDirectory() as folder:
+            plugin = backend(folder)
+            with self.assertRaises(ValueError): asyncio.run(plugin.get_setting('other'))
+            with self.assertRaises(ValueError): asyncio.run(plugin.set_setting('enabled', 'yes'))
+            self.assertFalse((Path(folder) / 'settings.json').exists())
+
+
+if __name__ == '__main__':
+    unittest.main()
@@ -63,7 +63,7 @@ print(json.dumps({'arch':platform.machine(), 'frameOS':os_release.get('VERSION_I


 APPLY = r'''
-import hashlib, json, os, pathlib, subprocess, sys
+import fcntl, hashlib, json, os, pathlib, subprocess, sys
 action, token, digest, version = sys.argv[1:]
 home = pathlib.Path.home()
 base = home / '.local/share/frame-control/decky'
@@ -72,6 +72,7 @@ binary = base / 'PluginLoader'
 receipt = base / '.frame-control/receipt.json'
 legacy = base / 'settings/release.json'
 stage = pathlib.Path('/tmp/frame-control-decky-' + token)
+transaction_lock = None
 def systemd(*args):
    p = subprocess.run(['systemctl','--user',*args], capture_output=True, text=True, timeout=20)
    if p.returncode: raise RuntimeError((p.stderr or p.stdout).strip() or 'systemd failed')
@@ -79,6 +80,13 @@ def owned():
    try: return json.loads((receipt if receipt.exists() else legacy).read_text()).get('managedBy') == 'Frame Control' and service.is_file()
    except (OSError, ValueError): return False
 try:
+    # The desktop and headset servers are separate processes. Lock the shared
+    # user-service transaction on the Frame before inspecting or changing it.
+    base.parent.mkdir(parents=True, exist_ok=True)
+    lock_path = base.parent / 'decky-transaction.lock'
+    transaction_lock = os.fdopen(os.open(lock_path, os.O_CREAT | os.O_RDWR | os.O_NOFOLLOW, 0o600), 'r+b')
+    try: fcntl.flock(transaction_lock, fcntl.LOCK_EX | fcntl.LOCK_NB)
+    except BlockingIOError: raise RuntimeError('Another Decky change is in progress; try again after it finishes')
    if action == 'remove':
        if not owned(): raise RuntimeError('No Frame Control managed Decky install to remove')
        systemd('disable','--now','frame-control-decky.service')
@@ -141,6 +149,7 @@ try:
        print(json.dumps({'message':'Decky Loader '+version+' is running as a user service. The VR menu is experimental.'}))
 finally:
    stage.unlink(missing_ok=True)
+    if transaction_lock is not None: transaction_lock.close()
 '''


@@ -104,7 +104,7 @@ def archive_info(data, expected_hash, expected_name):


 APPLY = r'''
-import hashlib,json,pathlib,shutil,subprocess,sys,zipfile
+import fcntl,hashlib,json,os,pathlib,shutil,subprocess,sys,zipfile
 action,token,plugin_id,digest,folder,version = sys.argv[1:]
 base=pathlib.Path.home()/'.local/share/frame-control/decky/plugins'
 unit=pathlib.Path.home()/'.config/systemd/user/frame-control-decky.service'
@@ -113,6 +113,7 @@ archive=pathlib.Path('/tmp/frame-control-decky-plugin-'+token)
 stage=base/('.frame-control-stage-'+token)
 backup=base/('.frame-control-old-'+token)
 marker='.frame-control-store.json'
+transaction_lock=None
 def owned():
    if target.is_symlink() or not target.is_dir(): return False
    try: return json.loads((target/marker).read_text()).get('storeId') == int(plugin_id)
@@ -120,12 +121,19 @@ def owned():
 def service(*args):
    p=subprocess.run(['systemctl','--user',*args],capture_output=True,text=True,timeout=25)
    if p.returncode: raise RuntimeError((p.stderr or p.stdout).strip()[-400:] or 'Decky service failed')
-if not unit.is_file(): raise RuntimeError('Install Frame Control managed Decky first')
-if action not in ('install','update','remove'): raise RuntimeError('Invalid plugin action')
-if action=='install' and (target.exists() or target.is_symlink()): raise RuntimeError('Plugin folder already exists')
-if action in ('update','remove') and not owned(): raise RuntimeError('Only a Frame Control store plugin can be changed')
-running=subprocess.run(['systemctl','--user','is-active','--quiet','frame-control-decky.service']).returncode==0
 try:
+    # A desktop request and a headset-panel request must not change the same
+    # Decky user service at once. Keep this lock until rollback/cleanup ends.
+    base.parent.parent.mkdir(parents=True,exist_ok=True)
+    lock_path=base.parent.parent/'decky-transaction.lock'
+    transaction_lock=os.fdopen(os.open(lock_path,os.O_CREAT|os.O_RDWR|os.O_NOFOLLOW,0o600),'r+b')
+    try: fcntl.flock(transaction_lock,fcntl.LOCK_EX|fcntl.LOCK_NB)
+    except BlockingIOError: raise RuntimeError('Another Decky change is in progress; try again after it finishes')
+    if not unit.is_file(): raise RuntimeError('Install Frame Control managed Decky first')
+    if action not in ('install','update','remove'): raise RuntimeError('Invalid plugin action')
+    if action=='install' and (target.exists() or target.is_symlink()): raise RuntimeError('Plugin folder already exists')
+    if action in ('update','remove') and not owned(): raise RuntimeError('Only a Frame Control store plugin can be changed')
+    running=subprocess.run(['systemctl','--user','is-active','--quiet','frame-control-decky.service']).returncode==0
    if action!='remove':
        data=archive.read_bytes()
        if not 1024<len(data)<=50*1024*1024 or hashlib.sha256(data).hexdigest()!=digest:
@@ -143,7 +151,8 @@ try:
            unpacked=stage/folder
            if not unpacked.is_dir(): raise RuntimeError('Missing plugin folder')
            (unpacked/marker).write_text(json.dumps({'storeId':int(plugin_id),'sha256':digest,'version':version})+'\n')
-    if running: service('stop','frame-control-decky.service')
+    # Stop even a failed unit before removal to cancel any pending auto-restart.
+    if running or action=='remove': service('stop','frame-control-decky.service')
    try:
        if action!='install': target.rename(backup)
        if action!='remove': (stage/folder).rename(target)
@@ -159,6 +168,7 @@ try:
 finally:
    archive.unlink(missing_ok=True)
    if stage.exists(): shutil.rmtree(stage)
+    if transaction_lock is not None: transaction_lock.close()
 '''


@@ -167,9 +177,13 @@ def change(ssh, action, plugin_id, report=lambda stage, percent=None: None):
        raise ValueError('Choose a valid store plugin action')
    report('Checking installed plugins', 5)
    state = frame_decky.status(ssh)
-    if not state['managed'] or not state['running']:
-        raise ValueError('Start Frame Control managed Decky before changing plugins')
+    if not state['managed']:
+        raise ValueError('Install Frame Control managed Decky before changing plugins')
+    if action != 'remove' and not state['running']:
+        raise ValueError('Start Frame Control managed Decky before installing or updating plugins')
    installed = [p for p in state['plugins'] if p.get('storeId') == plugin_id]
+    if action == 'install' and installed:
+        raise ValueError('This store plugin is already installed; use Update or Remove')
    if action == 'remove':
        if len(installed) != 1:
            raise ValueError('Only an installed Frame Control store plugin can be removed')
@@ -3,6 +3,14 @@
  'use strict';
  const R = window.SP_REACT = window.React;
  window.SP_REACTDOM = window.ReactDOM;
+  const jsx = (type, props, key) => {
+    const {children, ...elementProps} = props || {};
+    if (key !== undefined) elementProps.key = key;
+    return Object.prototype.hasOwnProperty.call(props || {}, 'children')
+      ? R.createElement(type, elementProps, children)
+      : R.createElement(type, elementProps);
+  };
+  window.SP_JSX = {jsx, jsxs:jsx, Fragment:R.Fragment};
  window.LocalizationManager = {m_rgLocalesToUse:[navigator.language || 'en']};
  const root = document.getElementById('framey-root');
  const error = document.getElementById('framey-error');
@@ -105,7 +105,9 @@ async function refreshGames(){const list=byId('games');try{const data=await api(
  }catch(error){list.textContent=error.message;}}
 let deckyState=null, deckyStore=[], deckyStoreIndex=0, activeFrameyId=null, deckyBusy=false;
 async function refreshDecky(){try{deckyState=await api('/api/decky');
-  byId('deckyState').textContent=deckyState.running?'Decky loader is running. Backend loading is not a VR menu check.':'Decky is not running. Install it from Frame Control on your computer.';
+  byId('deckyState').textContent=deckyState.running?'Decky loader is running. Backend loading is not a VR menu check.':
+    deckyState.managed?'Decky is stopped. You can remove a managed plugin to recover, then start Decky from Frame Control on your computer.':
+    'Decky is not running. Install it from Frame Control on your computer.';
  const list=byId('deckyInstalled');list.replaceChildren();
  for(const plugin of deckyState.plugins||[]){const row=document.createElement('div');row.className='block';
    const name=document.createElement('strong');name.textContent=`${plugin.name} ${plugin.version||''}`;row.append(name);
@@ -148,7 +150,15 @@ function deckyJobView(title,message,percent,failed=false){
 }
 async function followDeckyJob(job,action,name){
  for(let n=0;n<180;n++){
-    const progress=await api(`/api/job?id=${encodeURIComponent(job)}`);
+    let progress;
+    try{progress=await api(`/api/job?id=${encodeURIComponent(job)}`);}
+    catch(error){
+      if(/no such job/i.test(error.message)){
+        sessionStorage.removeItem('frameyPluginJob');
+        throw Error('The app restarted and lost this job result. Refresh installed plugins to see what changed.');
+      }
+      throw error;
+    }
    if(progress.done){if(progress.error){sessionStorage.removeItem('frameyPluginJob');throw Error(progress.error);}
      deckyJobView(`${action} ${name}`,progress.message||`${action} complete`,100);return;}
    deckyJobView(`${action} ${name}`,progress.stage||'Waiting for Frame…',progress.percent);
@@ -168,7 +178,7 @@ async function deckyChange(action,plugin){if(deckyBusy||!confirm(`${action} ${pl
  finally{deckyBusy=false;await refreshDecky();}
 }
 async function checkDeckyJob(){let saved;try{saved=JSON.parse(sessionStorage.getItem('frameyPluginJob')||'null');}catch(_){saved=null;}
-  if(!saved||typeof saved.job!=='string')return;
+  if(!saved||typeof saved.job!=='string'){sessionStorage.removeItem('frameyPluginJob');return;}
  deckyBusy=true;byId('deckyJobCheck').hidden=true;
  try{await followDeckyJob(saved.job,saved.action,saved.name);sessionStorage.removeItem('frameyPluginJob');}
  catch(error){deckyJobView(`${saved.action} ${saved.name}`,`Error: ${error.message}`,null,true);}
@@ -2202,7 +2202,7 @@ async function loadDecky() {
      const row=document.createElement('div');row.className='hint';
      const label=document.createElement('span');label.textContent=`${plugin.name} ${plugin.version||''}`;
      const remove=document.createElement('button');remove.className='small danger';remove.textContent='Remove plugin';
-      remove.disabled=!d.running||!$('deckyAck').checked;
+      remove.disabled=!d.managed||!$('deckyAck').checked;
      remove.onclick=()=>changeDeckyPlugin('remove',{id:plugin.storeId,name:plugin.name});
      row.append(label,remove);managedList.append(row);}
    deckyButtons();
@@ -2236,7 +2236,7 @@ function showDeckyStore() {
      button.onclick=()=>changeDeckyPlugin(entry?'update':'install',plugin);
      row.append(button);
      if(entry){const remove=document.createElement('button');remove.className='small danger';remove.textContent='Remove';
-        remove.disabled=!deckyInfo?.managed || !deckyInfo?.running || !$('deckyAck').checked;
+        remove.disabled=!deckyInfo?.managed || !$('deckyAck').checked;
        remove.onclick=()=>changeDeckyPlugin('remove',plugin);row.append(remove);}
    }
    list.append(row);
@@ -2255,7 +2255,7 @@ function deckyButtons() {
  $('deckyRemove').disabled = !ack || !deckyInfo?.managed;
 }
 $('deckyAck').onchange = () => { deckyButtons(); showDeckyStore();
-  for(const button of $('deckyManagedList').querySelectorAll('button'))button.disabled=!$('deckyAck').checked||!deckyInfo?.running; };
+  for(const button of $('deckyManagedList').querySelectorAll('button'))button.disabled=!$('deckyAck').checked||!deckyInfo?.managed; };
 $('deckyRefresh').onclick = loadDecky;
 $('deckyStoreRefresh').onclick = loadDeckyStore;
 $('deckyStoreSearch').oninput = showDeckyStore;
Author	SHA1	Message	Date
SAPHID	5932b6a8a4	Document official Decky frontend API compatibility audit	2026-10-25 10:15:48 +00:00
Alex SouthwellandSAPHID	faf7bc6224	Prepare Frame Control 0.4.33 (#235 ) * Prepare Frame Control 0.4.33 * Record Framey sample and Decky recovery limits --------- Co-authored-by: SAPHID <saphid@users.noreply.github.com>	2026-10-25 09:51:10 +00:00
Alex SouthwellandSAPHID	289a971c90	Add Decky settings sample for Framey plugin authors (#233 ) * Provide Decky automatic JSX runtime in Framey panel * Add Decky settings sample for Framey authors * Use official Decky settings path in sample backend --------- Co-authored-by: SAPHID <saphid@users.noreply.github.com>	2026-10-25 09:39:01 +00:00
Alex SouthwellandSAPHID	f2f6085887	Allow Decky plugin removal when loader is stopped (#234 ) * Allow safe Decky plugin removal when loader is stopped * Stop failed Decky unit before recovery removal --------- Co-authored-by: SAPHID <saphid@users.noreply.github.com>	2026-10-25 09:34:39 +00:00
Alex SouthwellandSAPHID	d1541099b8	Clear stale Framey job IDs after app restart (#232 ) Co-authored-by: SAPHID <saphid@users.noreply.github.com>	2026-10-25 09:30:52 +00:00
Alex SouthwellandSAPHID	0440959834	Provide Decky automatic JSX runtime in Framey panel (#231 ) Co-authored-by: SAPHID <saphid@users.noreply.github.com>	2026-10-25 09:26:47 +00:00
Alex SouthwellandSAPHID	482d031a18	Serialize managed Decky changes across desktop and headset (#230 ) Co-authored-by: SAPHID <saphid@users.noreply.github.com>	2026-10-25 09:24:48 +00:00
Alex SouthwellandSAPHID	20a5ced63d	Test Framey settings persistence across plugin lifecycle (#229 ) Co-authored-by: SAPHID <saphid@users.noreply.github.com>	2026-10-25 09:20:19 +00:00
Alex SouthwellandSAPHID	02fe664583	Prepare Frame Control 0.4.32 (#228 ) Co-authored-by: SAPHID <saphid@users.noreply.github.com>	2026-10-25 08:06:51 +00:00
Alex SouthwellandSAPHID	e2ffcd34f3	Support Decky panel routes and toasts in Framey (#227 ) * Host Decky plugin panels in Frame Control VR * Record Framey VR verification limits * Lock Frame before worn checks and clean private captures * Browse and search the full Decky store in VR * Show Decky plugin job progress in VR * Show plugin quick actions and settings in Framey panel * Add local Decky routes and toasts to Framey --------- Co-authored-by: SAPHID <saphid@users.noreply.github.com>	2026-10-25 07:56:38 +00:00
				`@@ -0,0 +1 @@`
				{"version":3,"file":"index.js","sources":["decky://decky/plugin/Framey%20Settings%20Sample/node_modules/.pnpm/@decky+api@1.1.3/node_modules/@decky/api/dist/index.js","decky://decky/plugin/Framey%20Settings%20Sample/src/index.tsx"],"sourcesContent":["import _manifest from '@decky/manifest';\nexport * from \"./types\";\nconst manifest = _manifest;\nconst API_VERSION = 2;\nif (!manifest?.name) {\n throw new Error('[@decky/api]: Failed to find plugin manifest.');\n}\nconst internalAPIConnection = window.__DECKY_SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED_deckyLoaderAPIInit;\nif (!internalAPIConnection) {\n throw new Error('[@decky/api]: Failed to connect to the loader as as the loader API was not initialized. This is likely a bug in Decky Loader.');\n}\nlet api;\ntry {\n api = internalAPIConnection.connect(API_VERSION, manifest.name);\n}\ncatch {\n api = internalAPIConnection.connect(1, manifest.name);\n console.warn(`[@decky/api] Requested API version ${API_VERSION} but the running loader only supports version 1. Some features may not work.`);\n}\nif (api._version != API_VERSION) {\n console.warn(`[@decky/api] Requested API version ${API_VERSION} but the running loader only supports version ${api._version}. Some features may not work.`);\n}\nexport const call = api.call;\nexport const callable = api.callable;\nexport const addEventListener = api.addEventListener;\nexport const removeEventListener = api.removeEventListener;\nexport const routerHook = api.routerHook;\nexport const toaster = api.toaster;\nexport const openFilePicker = api.openFilePicker;\nexport const executeInTab = api.executeInTab;\nexport const injectCssIntoTab = api.injectCssIntoTab;\nexport const removeCssFromTab = api.removeCssFromTab;\nexport const fetchNoCors = api.fetchNoCors;\nexport const getExternalResourceURL = api.getExternalResourceURL;\nexport const useQuickAccessVisible = api.useQuickAccessVisible;\nexport const definePlugin = (fn) => {\n return (...args) => {\n return fn(...args);\n };\n};\n","import {callable, definePlugin, toaster} from '@decky/api';\nimport {ButtonItem, PanelSection, PanelSectionRow, ToggleField} from '@decky/ui';\nimport {useEffect, useState} from 'react';\n\nconst getSetting = callable<[key: string, fallback: boolean], boolean>('get_setting');\nconst setSetting = callable<[key: string, value: boolean], boolean>('set_setting');\n\nfunction Content() {\n const [enabled, setEnabled] = useState(false);\n const [busy, setBusy] = useState(true);\n const [message, setMessage] = useState('Loading setting…');\n\n async function refresh() {\n setBusy(true);\n try {\n const value = await getSetting('enabled', false);\n setEnabled(value);\n setMessage(`Saved setting: ${value ? 'on' : 'off'}`);\n } catch (error) {\n setMessage(`Could not read setting: ${String(error)}`);\n } finally {\n setBusy(false);\n }\n }\n\n useEffect(() => {void refresh();}, []);\n\n async function change(value: boolean) {\n setBusy(true);\n try {\n await setSetting('enabled', value);\n setEnabled(value);\n setMessage(`Saved setting: ${value ? 'on' : 'off'}`);\n toaster.toast({title: 'Framey sample', body: 'Setting saved'});\n } catch (error) {\n setMessage(`Could not save setting: ${String(error)}`);\n } finally {\n setBusy(false);\n }\n }\n\n return <PanelSection title=\"Framey settings sample\">\n <PanelSectionRow>\n <ToggleField label=\"Example setting\" description=\"Stored by the Decky Python backend\"\n checked={enabled} disabled={busy} onChange={(value: boolean) => {void change(value);}} />\n </PanelSectionRow>\n <PanelSectionRow><ButtonItem disabled={busy} onClick={() => {void refresh();}}>Reload saved setting</ButtonItem></PanelSectionRow>\n <PanelSectionRow><p role=\"status\">{message}</p></PanelSectionRow>\n </PanelSection>;\n}\n\nexport default definePlugin(() => ({\n name: 'Framey Settings Sample',\n icon: <span aria-hidden=\"true\">⚙</span>,\n content: <Content />,\n}));\n"],"names":[],"mappings":"AAEA,MAAA,QAAA,GAAiB,CAAA,MAAA,CAAA,wBAAA,CAAS;AAC1B,MAAA,WAAA,GAAA,CAAA;AAIA,MAAA,qBAAA,GAAA,MAAA,CAAA,2EAAA;AACA,IAAA,CAAA,qBAAA,EAAA;AACA,IAAA,MAAA,IAAA,KAAA,CAAA,+HAAA,CAAA;AACA;AACA,IAAA,GAAA;AACA,IAAA;AACA,IAAA,GAAA,GAAA,qBAAA,CAAA,OAAA,CAAA,WAAA,EAAA,QAAA,CAAA,IAAA,CAAA;AACA;AACA,MAAA;AACA,IAAA,GAAA,GAAA,qBAAA,CAAA,OAAA,CAAA,CAAA,EAAA,QAAA,CAAA,IAAA,CAAA;AACA,IAAA,OAAA,CAAA,IAAA,CAAA,CAAA,mCAAA,EAAA,WAAA,CAAA,4EAAA,CAAA,CAAA;AACA;AACA,IAAA,GAAA,CAAA,QAAA,IAAA,WAAA,EAAA;AACA,IAAA,OAAA,CAAA,IAAA,CAAA,CAAA,mCAAA,EAAA,WAAA,CAAA,8CAAA,EAAA,GAAA,CAAA,QAAA,CAAA,6BAAA,CAAA,CAAA;AACA;AAEA,MAAA,QAAA,GAAA,GAAA,CAAA,QAAA;AAIA,MAAA,OAAA,GAAA,GAAA,CAAA,OAAA;AAQA,MAAA,YAAA,GAAA,CAAA,EAAA,KAAA;AACA,IAAA,OAAA,CAAA,GAAA,IAAA,KAAA;AACA,QAAA,OAAA,EAAA,CAAA,GAAA,IAAA,CAAA;AACA,IAAA,CAAA;AACA,CAAA;;ACnCA,MAAA,UAAA,GAAA,QAAA,CAAA,aAAA,CAAA;AACA,MAAA,UAAA,GAAA,QAAA,CAAA,aAAA,CAAA;AAEA,SAAA,OAAA,Line truncated