I believe you can already do this with zap.stream. Of course, it will take a lot of polishing and improvements to make it appealing to normies.
Or maybe I’m not properly getting your point.
Discussion
As I understand nostr:nprofile1qqsv73dxhgfk8tt76gf6q788zrfyz9dwwgwfk3aar6l5gk82a76v9fgpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhszxthwden5te0wfjkccte9eekummjwsh8xmmrd9skctcppemhxue69uhkummn9ekx7mp0dutak6 the app is for viewers of the stream, not for the streamer themselves.
To start a stream I add zap.stream rtmp and streamkey to my broadcast app, and it makes that part easy.
And I can use any broadcast app, like prism or larix or whatever, so long as it can push to rtmp.
BUT, if you as a viewer message me on zap.stream (or zap me, or whatever), my broadcast app doesn't show me this. To see it, I will have to run and watch a second completey separate device in order to see my audience chat.
Big gap
That's not exclusively a zap stream problem mind you.
Was chatting with a guy who uses whatnot to break baseball cards on live stream. He says the key to being a good streamer is to provide good entertainment and audience engagement.
Pushing the video is just the start, seeing and responding to chat etc are all critical for him.
Oh, I see now. That’s definitely something that should be looked into. I guess this will be easily fixable when we have Nostr-native broadcast apps.