Comment by Tepix
Have you looked at Trystero https://oxism.com/trystero to establish the WebRTC connection? I used it on a small PoC last week and it worked well. Thanks to latching on to various decentralized services (Nostr etc) you don’t need your own TURN/STUN server etc.
I'm pretty sure this still uses STUN/TURN [0], it just uses Nostr and friends as a signaling server. Again, the main stumbling block of WebRTC is the signaling server stuff. STUN/TURN is honestly pretty trivial
[0] https://github.com/dmotz/trystero/blob/65fa48e33c82a7d0fa627...