I'm not sure about self hosted specific. There is a device called WiiM. Works with most of the major streaming services. I believe they're also working on plexamp integration too.
this post was submitted on 13 Mar 2025
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I actually looked into Wiim and it's really great, but you need to open the music in their app in order to do mutiroom. You can't just "cast" from Spotify or whatever.
EDIT: Some Wiim devices have chromecast built in
Good to know, thanks!
I've seen some interesting development with Music Assistant but I haven't personally used it. It's not sure if it can be commanded using the cast button.
Music assistant is indeed cool and can do multi-room, but you have to go to it specifically first.
Yeah, they have a spotify connect plugin that works, but chromecast probably will not be supporter because google holds all of the cast keys and esphome/music assistant/ home assistant would have to register with them (and probably play the fees) i think
Dang OK thanks yeah we need all apps (Tidal, BandCamp, Pocketcasts etc) not just Spotify.
The Google Casting protocol is proprietary (and indeed the outage was caused because the system that verifies a receiver's "legitimacy" broke down lol) so AFAIK there is no Open Source solution that can replicate the functionality. At least so far.
The cast button works with Apple Airplay and Sonos devices yeah? I also believe it works with (some) Wiim devices.
I always thought since the cast button on Spotify/tidal/etc. is a Google thing it would only ever work with the Chromecast protocol.
That makes sense but I just wanted to check. Someone else linked this to me but it appears at least one other open source project works with it https://github.com/rgerganov/shanocast
Great find! I hope it works! Maybe things like this will get more use now that Chromecast Audio is getting deprecated
It’s iOS-specific, but if your family happen to have iOS devices https://github.com/mikebrady/shairport-sync works amazingly with Rpi ZeroWs. But I’d spring for the 2W version for some breathing room, if you could. All the iOS apps I’ve used are able to play to an airplay2 group in sync, but I don’t have either of the apps you called out specifically.
I've never had any luck finding anything open source / self hosted that actually works reliably. The best I came up with was an Nvidia Shield, which at least allows to you to run stuff like Kodi, Jellyfin, and Smart Tube Next (ad blocking YouTube client).
I have a home server, I just need the little parts that plug into the speaker.
This is the closest thing I've heard of that does some sort of casting. AFAIK it doesn't replace chromecast. I've never actually used it.
My solution to this since my house is small is to use an amp that supports multiple speakers that all the devices connect to and then wire speakers through the house. I've thought about connecting the amp to a small computer and streaming the audio to my sheds using ROC. The neat thing about this solution is I can play my records and tapes too and listen to them seamlessly between rooms.
Thanks, someone else linked this too: https://github.com/rgerganov/shanocast
I've thought about running wires too but I don't always want it playing in every room, and the convenience of "cast to [group A] [group B] etc is too convenient for my family to give up.
You can get standalone Bluetooth devices that just output audio.
But my chromecast transports digital signal to my DAC. Probably better quality than the DAC in the bluetooth speaker
ok, then keep using your chromecast.
Won't work with multiroom unfortunately.
You use it as an input for something like snapcast.
Snapcast allows me to use the "chromecast" button inside the spotify app?
no, but then you want something like this https://github.com/rgerganov/shanocast
Now that's interesting! Thanks