MarsSeed [1] filed a deletion request for gnome-shell-extension-wanda- the-fish [2]:
Upstream abandoned for 30 months, [a] and not compatible with current gnome-shell, only with v42 and lower (as per metadata.json). [a]: https://gitlab.com/tallero/wandathefish [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/gnome-shell-extension-wanda-the-fish/
