MarsSeed [1] filed a deletion request for virtualbox-host-modules-pf [2]: It seems this package has never been properly maintained all through several years. Because it depends on a version-bound 'virtualbox-host-dkms', which should be provided by AUR/linux-pf, but the latter package only ever provided versionless 'virtualbox-host-dkms'. There is a comment on this package page from 2016 about the same. (It comes from a package merge, as this current package has been first submitted in 2020. But this comment indicates that even the predecessor of this package was not maintained properly.) [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/virtualbox-host-modules-pf/