MarsSeed [1] filed a deletion request for xneur-devel-git [2]: Broken, badly packaged Gtk2 VCS build from 2019, without a pkgver() function. Upstream development discontinued since Jan 2021. [a] [a]: https://github.com/AndrewCrewKuznetsov/xneur-devel/commits/master [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/xneur-devel-git/