Flagged Out-of-Date Comment: phonon-gstreamer-git

MarsSeed flagged phonon-gstreamer-git out-of-date on 2024-03-20 (UTC) for the following reason:

Maintenance ended a year ago; upstream repo archived. (Also its dependency phonon-qt5-git is broken, fails to build, and extra-cmake-modules-git fails testing.) Anyway, this should be deleted as upstream repo is read-only.