@nebulon You people are awesome!
I was just about to make a request for Jellyfin, after scouting around for some sort of Karaoke solution. Jellyfin looked like the best option. Others included OpenKJ and Karaoke Forever:
https://docs.openkj.org/
https://github.com/bhj/karaoke-forever/
Has anybody had much experience with these applications? I was hoping for a bit more from them but maybe they are quite good.