micwoj92 [1] filed a deletion request for ruby-state_machine [2]: Gem unmaintained since 2013, de facto superseeded by state_machines (which isn't packaged anywhere on AUR) https://github.com/pluginaweek/state_machine/issues/343 [1] https://aur.archlinux.org/account/micwoj92/ [2] https://aur.archlinux.org/pkgbase/ruby-state_machine/