GelatinousSlime [1] filed a deletion request for gnome-shell- extension-shell-volume-mixer-git [2]:
Duplicate of https://aur.archlinux.org/packages/gnome-shell-extension- volume-mixer-git/ [1] https://aur.archlinux.org/account/GelatinousSlime/ [2] https://aur.archlinux.org/pkgbase/gnome-shell-extension-shell-volume-mixer-git/