Morganamilo [1] filed a deletion request for ruby-test-unit [2]: Package exists in official repositories These duplicates keep popping up. And the AUR packages are often old. This makes me think these packages used to be AUR only then were added to the offical repos. Maybe it's time for some hook to automatically flag these packages when they drop in the repos. [1] https://aur.archlinux.org/account/Morganamilo/ [2] https://aur.archlinux.org/pkgbase/ruby-test-unit/