MarsSeed [1] filed a deletion request for sumo-git [2]: Broken, unused, abandoned VCS package from 2016.
There is an actively maintained stable variant on AUR. [a] [a]: https://aur.archlinux.org/pkgbase/sumo [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/sumo-git/
