doppelhelix [1] filed a deletion request for gnome-shell-extension- compiz-alike-windows-effect-git [2]: Outdated gnome-shell-extension (gnome-shell<=42) github repository is archived. aur-package probably of now use anymore. [1] https://aur.archlinux.org/account/doppelhelix/ [2] https://aur.archlinux.org/pkgbase/gnome-shell-extension-compiz-alike-windows...