ref: 5535c2c3b19b42ebfe4c451600059e9418e401a6 seatd/contrib/systemd/seatd.service -rw-r--r-- 238 bytes
contrib/systemd: Use a different group

"video" was used for convenience in the example, but a dedicated group
is preferable so that a user does not gain the ability to bypass the
seat manager and open devices directly.
contrib: Add Documentation to systemd unit
contrib: Add example systemd service