MarsSeed [1] filed a deletion request for systemd-kcm [2]: EOL version of a KDE5 only System Settings module from 2015.
Upstream repo is discontinued and got archived 4 years ago. [a] Does not work on KDE Plasma 6: the module does not get loaded and shown in System Settings. [a]: https://invent.kde.org/unmaintained/systemd-kcm [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/systemd-kcm/
