That is an awesome library. It didn't see any sort of documentation, but I imagine that this does not work on a local library, correct? I believe at some point I heard that there were some DNS settings on the Chromecast that couldn't be changed? Personally, I'm really looking forward to someone creating some sort of an open-source receiver clone that I can install on my Nvidia Jetson or some other SoC. I would love t…
Unfortunately, Crestron-style systems are still the only way to go if you want a system that you don't have to babysit too much. They support wireless or wired HDMI across multiple inputs and outputs. But they're pretty expensive (a few thousand dollars per room) so most people don't bother.
Something like Chromecast works ok, but there's no easy way to swap back to other inputs (e.g. a game console) without a remote. Chromecast also has some significant input lag (a second or two) when issuing commands to it.