You want Owncast http://owncast.online/

Probably Owncast?
https://owncast.online/

could you do it with peertube? I never used twitch, so not sure what all features you want or need, but I’m pretty sure peertube has live streaming now

OwnCast for now - but #GreatApe is worth keeping a watch out for…

peertube has p2p livestreaming support

Thanks everyone!!