MarsSeed [1] filed a deletion request for mirrorbrain [2]: Seems like a dead project since 2014. [a] Package is defunct because it is missing a dependency. I suggest to delete it. It is a server component used for content delivery and mirroring. Even if it worked, it would be seriously insecure, and also most likely lack modern standards support. [a]: https://mirrorbrain.org/ [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/mirrorbrain/