MarsSeed [1] filed a deletion request for passbox [2]: Seems this was a binary app. Package last updated in 2020. Website and source gone (server doesn't exist). Google does not find anything related to this app. So I'd say it's not worth keeping. No dependents, no harm in deleting. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/passbox/