[dade_]

Works well and looks great. It would better meet my needs with Chromecast support, but I don't see a way to do this on MacOS without having embedded the Chrome browser instead of Safari: https://developers.google.com/cast/docs/downloads "The Google Cast SDK and API libraries support the development of Android, iOS, and Chrome sender applications"

AirPlay audio streaming would also work for me, such as the way iTunes works, but I assume that Apple keeps that locked down as well.

[girvo]

Iirc, AirPlay would actually be possible. Would be fiddly, but possible. I have a plugin that lets me send any video in a web page to my Apple TV, and that's just a safari plugin (so only JavaScript basically) -- considering this is just a webview with wicked styling, I think it might be doable. I'm gonna take a look myself actually...