MarsSeed [1] filed a deletion request for teyjus [2]: Broken, abandoned ocaml 4 based package from 2016. Not compatible with repo's current ocaml 5.
(Even the slightly newer version mentioned in OOD flag is only for ocaml4.) [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/teyjus/
