LR-BEHAV-ACCESS: the Flatpak may talk to the accessibility bus, so Orca can read LightCraft

docs/whats-new.md

@@ -2,6 +2,9 @@
 
 ## 2026-10-30
 
+### The Flatpak may talk to the accessibility bus
+- The Flatpak package now has access to the accessibility bus (`org.a11y.Bus`) and no other new permission; its network, Pictures folder and GPU access are unchanged. Before, the sandbox hid the bus, so a screen reader such as Orca could not see LightCraft's window. The Flatpak build is the only one affected.
+
 ### A keyboard shortcut for Clear Color Label
 - Clear Color Label is now a command of its own in Help ▸ Keyboard Shortcuts, so it can have a key like Set Rating or
   Set Flag; before, only the red, yellow, green and blue labels (6–9) had keys and clearing a label was menu-only. It has

packaging/check-app-specific.sh

@@ -17,6 +17,8 @@ for name in ("ai.storyteller.lightcraft.yml", "ai.storyteller.lightcraft.bundle.
     with open("packaging/linux/flatpak/" + name) as source:
         manifest = yaml.safe_load(source)
     assert manifest["id"] == "ai.storyteller.lightcraft" and manifest["command"] == "lightcraft", name
+    # Without this talk-name the sandbox hides the accessibility bus and Orca cannot see the app.
+    assert "--talk-name=org.a11y.Bus" in manifest["finish-args"], f"{name} lost --talk-name=org.a11y.Bus"
     manifests.append(manifest)
 for key in ("runtime", "runtime-version", "sdk", "finish-args"):
     assert manifests[0][key] == manifests[1][key], f"Flatpak manifests disagree on {key}"

packaging/linux/flatpak/ai.storyteller.lightcraft.bundle.yml

@@ -25,6 +25,10 @@ finish-args:
   - --share=ipc
   # GPU access for the wgpu renderer (Vulkan, or GL as a fallback).
   - --device=dri
+  # Screen readers: AccessKit asks the accessibility bus (org.a11y.Bus) whether one is running and
+  # publishes the window there over AT-SPI. Without it the sandbox hides the bus and the app is
+  # invisible to Orca and other assistive technology.
+  - --talk-name=org.a11y.Bus
   # The library lives in ~/Pictures/LightCraft Library by default, and imports usually come from
   # Pictures. Open/Save dialogs go through the file-chooser portal (rfd's xdg-portal backend) and
   # drag-and-drop through the document portal, so picked folders elsewhere work without broad

packaging/linux/flatpak/ai.storyteller.lightcraft.yml

@@ -31,6 +31,10 @@ finish-args:
   - --share=ipc
   # GPU access for the wgpu renderer (Vulkan, or GL as a fallback).
   - --device=dri
+  # Screen readers: AccessKit asks the accessibility bus (org.a11y.Bus) whether one is running and
+  # publishes the window there over AT-SPI. Without it the sandbox hides the bus and the app is
+  # invisible to Orca and other assistive technology.
+  - --talk-name=org.a11y.Bus
   # The library lives in ~/Pictures/LightCraft Library by default, and imports usually come from
   # Pictures. Open/Save dialogs go through the file-chooser portal (rfd's xdg-portal backend) and
   # drag-and-drop through the document portal, so picked folders elsewhere work without broad