Why don’t more audio hardware manufactures integrate Chromcast into their streamers? Is it that difficult to program? Are there onerous licensing terms? The 3 manufacturers that have adopted this functionality are Pioneer, Naim and now Cambridge Audio.
From my point of view:
The owner of the streamer would have the ability to ‘cast’ audio to the device from whatever is playing from most any modern web browser via a Chromecast browser plugin. That, for many people, would eliminate the need for anything else.
Most (all?) streaming services incorporate cast functionality within their mobile apps. So in addition to browser support, most mobile apps are ready to stream.
Server software like Plex allows ‘cast’ functionality so a FLAC or MP3 library would be easily accessible and stream-able.
When I see several hardware manufacturers each with proprietary and competing software, allowing various services but not others, I wonder why more haven’t adopted Chromecast. It’s about as easy and as flexible as it gets.
I’m not begrudging anyone their aspirations for Roon or other proprietary platforms. Go nuts. Develop your heart out. But what’s so hard about adding Chromecast?