FYI, while this isn’t specifically about Home Assistant, one of the cofounders has been interacting a lot lately about how determined they are to bring us RTSP. I’d recommend reading all the comments from him in this thread:
You may even consider posting a comment or 2 over there since he’s been interacting with people.
Here’s a relevant statement based on what you were asking in your comment:
The survey did have a question asking if we’d like to help beta test their RTSP efforts.
He’s also posted about it in a few other threads. You can read all his other recent activity/posts here: