I’m not sure how much you can trust them, but you might want to have a look at Authelia

It’s WebOS for now sadly. I have a jellyfin server, but it frequently doesn’t have internet as family members need the cable. And I don’t have a lot of money to spare at the moment, but I hope to buy an nvidia shield 4k, and stream everything from jellyfin soon.

I’ve heard an nvidia shield with lineageOS is really quite good!