build: track AppImage and .deb release artifacts

Commit the prebuilt AppImage and Debian .deb under dist/ so they are
downloadable from the remote. appimagetool and intermediate build output
remain gitignored. README links to both artifacts.

.gitignore

@@ -6,4 +6,9 @@
 # nix
 result
 result-*
-dist/
+
+# Packaging build output. Keep the release artifacts (AppImage/.deb) tracked
+# so they are downloadable from the remote, but ignore intermediates.
+dist/*
+!dist/*.AppImage
+!dist/*.deb

README.md

@@ -80,7 +80,11 @@ systemd unit that runs the headless CLI with its own config.
 
 ## Packaging
 
-Three distribution formats are provided:
+Three distribution formats are provided. Prebuilt artifacts are tracked in
+the repo under `dist/` and downloadable from the remote:
+
+- [AppImage](http://homeserver:3050/pedley/TeleportFling/raw/branch/main/dist/TeleportFling-0.1.0-x86_64.AppImage)
+- [Debian/Ubuntu .deb](http://homeserver:3050/pedley/TeleportFling/raw/branch/main/dist/teleportfling_0.1.0_amd64.deb)
 
 ### Nix / NixOS