MarsSeed [1] filed a deletion request for xnretro [2]: Orphan bin32 binary package, release date 2013 (last for Linux, and only bin32). Otherwise latest release is from 2020 for Windows & MacOS. I recommend deletion: not worth keeping. There are many photo editors with filtering effect natively for Linux nowadays. Or someone can just pour the 2020 Windows version into a WINE bottle (prefix). :P [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/xnretro/