feat: fix the davinco .desktop launcher

davinci/README.md

@@ -110,23 +110,36 @@ reports something like "Unsupported GPU processing mode" on launch.
 
 ## App menu entry (icon, no terminal)
 
-Resolve ships its own `.desktop` files and icons under
-`/opt/resolve/share` and `/opt/resolve/graphics` — no need to write one by
-hand:
+Same approach as Houdini's: write a minimal `.desktop` by hand and export
+it, rather than adapting Resolve's own shipped `.desktop` files. Resolve's
+shipped `DaVinciResolve.desktop` uses the `%u` field code for file-manager
+"open with" support, and Resolve crashes (`AppConfig::LoadAllSiteInfo`
+assertion) if it's ever launched with a stray/unexpanded argument — not
+every app launcher strips unused field codes before running `Exec=`. A
+hand-written `.desktop` with no field codes at all sidesteps this
+entirely. See CLAUDE.md for how this was found.
 
 ```bash
 distrobox enter davinci
-mkdir -p ~/.local/share/applications
-cp /opt/resolve/share/*.desktop ~/.local/share/applications
-rm ~/.local/share/applications/DaVinciResolveInstaller.desktop
-sed -i 's/RESOLVE_INSTALL_LOCATION/\/opt\/resolve/' \
-    ~/.local/share/applications/{blackmagicraw*,DaVinci*}.desktop
-sed -i "s,Exec=,Exec=distrobox enter -n davinci -- /usr/local/bin/davinci-run ," \
-    ~/.local/share/applications/{blackmagicraw*,DaVinci*}.desktop
-distrobox-export --app "$HOME/.local/share/applications/DaVinciResolve.desktop"
+cat > /tmp/davinci.desktop << 'EOF'
+[Desktop Entry]
+Type=Application
+Name=DaVinci Resolve
+Comment=Editing, visual effects, color correction and audio post production
+Exec=davinci-run
+Icon=/opt/resolve/graphics/DV_Resolve.png
+Terminal=false
+Categories=AudioVideo;AudioVideoEditing;
+StartupWMClass=resolve
+EOF
+distrobox-export --app /tmp/davinci.desktop
 ```
 
-(Adapted from davincibox's `add-davinci-launcher` script — see CLAUDE.md.)
+This copies the icon to `~/.local/share/icons/` on the host and writes
+`~/.local/share/applications/davinci-davinci.desktop`. Distrobox also
+auto-creates a generic `davinci.desktop` ("Terminal entering davinci") when
+the box is created — set `NoDisplay=true` in that file, or delete it, if you
+don't want both entries in the app menu.
 
 ## Known gotchas (from upstream, not yet hit here ourselves)