Casting Jellyfin through Tailscale connected device

[TheDreadPirate]

This is probably better asked on the Tailscale forum since Jellyfin is only involved by proxy. There is probably more expertise about the ins and outs of Tailscale there.

WITHOUT Tailscale, just a plain ole Internet accessible Jellyfin server (behind a reverse proxy), this is 100% possible. I've done it.

Having said all that...

I would assume that to get Tailscale to communicate over whatever local network you are on, you would need to bridge the virtual NIC that Tailscale creates with the physical NIC in your phone/PC/whatever you are trying to cast from. I have no idea whether Tailscale can do that or how to if it does.

I am also pulling this out of my ass.