MovieNight VS owncast

I remember looking at MovieNight in the past, but I never deployed it so I can't speak to whether it will work for you or not.

Jellyfin supports "Watch parties" which I've used for movie nights in the past. It works well enough.

But if you want this going real-time and continuously it sounds like you want more of an RTMP stream setup. I recommend MovieNight[0] but you can handle it natively in Nginx I think. Then it's just a matter of setting up OBS[1] or something similar to stream to it and you can do whatever you want.

[0] https://github.com/zorchenhimer/MovieNight

You could always host your own, and forward the M3U through an RTMP server https://github.com/zorchenhimer/MovieNight

The Owncast project is planning the early stages of some re-architecting in our Go codebase to prepare for future features. I’d love to chat with you about the project! https://github.com/owncast/owncast

Owncast is what you want.

You can use OwnCast https://owncast.online/ if you host it on your own domain.

The main stage of talks are planned to be live streamed on the Monero Community Workgroup YouTube channel and to an Owncast self-hosted server (URL TBA).

it is, but OwnCast and OpenStreamingPlatform are probably closer to what Twitch does.

I always recommend people to contribute to software they use themselves. For me that is self-hosted servers like Mealie (Python+Vue) and Owncast (Go+React). Especially Owncast is a project that imo is comparatively easy to get into because the setup is kept really simple, documentation is good and the maintainers are super nice :) There are some good first issues, but in addition to that there are also often "debug problem X" issues that imo help one get into a project quick because you'll read a lot of code for them.

I've heard of owncast have not used it myself but might be worth a try