SUMMARY I reinstalled my PC and I copied my home directory to the new install. Unfortunately, AudioTube does not use /home to store user data and I completely lost all my songs and lists. OBSERVED RESULT After reinstall and /home backup, AudioTube is still empty EXPECTED RESULT I'd expect AudioTube to follow the XDG Base Directory specification and save user related data in $HOME/.local/share, just like any other KDE app does: https://specifications.freedesktop.org/basedir-spec/basedir-spec-0.6.html