MarsSeed [1] filed a deletion request for shgreeter [2]: Unmaintained package from 2016; upstream repo gone (404 not found).
I was not able to turn up an alternative location of the source. Owner last updated any of their PKGBUILD's on AUR in 2016. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/shgreeter/
