Comment by embedding-shape

9 hours ago

Yes, but it's STUN that sucks. If the software ships with a public (on the internet) relay/STUN server for connecting the two clients, it won't work if either aren't connected to the internet, even though the clients could still be on the same network and reach each other.

That seems like a nonissue for the purposes of this discussion though, in terms of user uptake. Tiktok and Facebook and other websites aren't exactly focused on serving to people on the same network.