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Sean-Der

Open Source doesn’t have an instant scalability offering yet. I hope someone takes it on!

Quite a few companies offer this a service though. Cloudflare, Twitch’s IVS, Dolby Millicast, Phenix RTS…

LiveKit did a write up on how they built theirs https://blog.livekit.io/scaling-webrtc-with-distributed-mesh...

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Interesting that "but a particular session can only be hosted by one instance"

Why is that? Is that a protocol issue with WebRTC or an implementation issue with the way WebRTC servers are written?

There are lots of ways to share session state across servers.

To build this quickly I would chain Broadcast Box instances. Have it look like a n-ary tree and spin up another broadcast box instance when you need it.

`OBS -> Broadcast Box -> Broadcast Box -> Broadcast Box -> Viewer`

To start I would do WHIP between the servers as well. More optimization can be done, but it would be a good quick start.

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