Google Cast: going beyond TTS (media control, playback state, Chromecast video)

Hi! The Google Cast integration that arrived in 4.43 is great for making Gladys talk on Google speakers. I have 8 Cast devices at home (Nest speakers and Chromecasts) and I’d like to go further: playback control (pause, volume, next), playback status exposed as a feature (usable as a scene trigger, e.g., dim the lights when a Chromecast starts playing), and why not sending media (audio/video URL, radio) to a device from a scene. This would turn Chromecast TVs into real home automation actors. What do you think?

Identified need based on my home automation setup, analyzed and written with the help of Claude (AI) — reviewed and approved by me.