MarsSeed [1] filed a deletion request for plasma5-wallpapers- wallpaper-engine-without-mpv-git [2]:
Broken KDE5 wallpaper changer engine plugin. EOL for 2 years, repo archived. [a] Not compatible with KDE Plasma 6. [a]: https://github.com/j1g5awi/wallpaper-engine-kde-plugin/tree/without- mpv [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/plasma5-wallpapers-wallpaper-engine-without-mpv-git/
