MarsSeed [1] filed a deletion request for sdl2-minimal-x11-git [2]: Unneeded variant VCS package. Unmaintained since 2021. Flagged as broken since 1+ year ago, no response.
There is a properly maintained sdl2-git package on AUR. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/sdl2-minimal-x11-git/
