Session DBUS is not avalible without X11. It would be neat to add option in config to make MPRIS avalible through system dbus. When I edited dbus_mpris.rs
let c = Rc::new(Connection::get_private(BusType::Session).unwrap());
and changed Session to System and recompiled it everything worked great. I would make pull request but i cannot into rust so it will be mess anyway. Please can somone make it? It's big deal for headless raspberry users.