kotontrion [1] filed a deletion request for astal-git [2]: astal was the gtk4 port of ags (aylurs-gtk-shell). This project was abandoned in favor of libastal. The github repository is already deleted, breaking this packages.
[1] https://aur.archlinux.org/account/kotontrion/ [2] https://aur.archlinux.org/pkgbase/astal-git/
