MarsSeed  filed a deletion request for shmupmametgm-git :
This is a now deprecated VCS package for a customized MAME emulator fork. Code development discontinued in 2020.
Its GitHub repo is inactivated (archived), so it's read-only and even the issue tracker is frozen in time. There are no continuation forks available.
Safe to delete. Nothing requires this package.
 https://aur.archlinux.org/account/MarsSeed/  https://aur.archlinux.org/pkgbase/shmupmametgm-git/
Request #34971 has been Accepted by Muflone :
[Autogenerated] Accepted deletion for shmupmametgm-git.