The first deploy to the Steam Frame aborted in install.sh: OVRAS creates
its QApplication before it handles --force-install-manifest, and Qt's
default platform plugin (xcb) aborts when there is no display, as over
SSH. Registering and unregistering draw nothing, so the generated
install.sh and uninstall.sh now run them with QT_QPA_PLATFORM=offscreen.
The normal start keeps DISPLAY=:0, as rendering needs a real context.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>