Matr1x-101 [1] filed an orphan request for gnome-shell-extension- coverflow-alt-tab-git [2]:

The owner has been unreponsive and has not fixed the issue that this package has. I have tried contacting the email on numerous occasions to no avail. They seem not to be active on the AUR as well.

[1] https://aur.archlinux.org/account/Matr1x-101/ [2] https://aur.archlinux.org/pkgbase/gnome-shell-extension-coverflow-alt-tab-gi...