I tried to make a Sonos replacement using OpenHAB, Snapcast, Mopidy, Raspberry Pi Zero's and speakers from Amazon! (Total cost for each unit/room ~= £52GBP) and I'm really pleased with the result! :
Multi-Room Audio System: Indoor and Outdoor Audio with Snapcast and Mopidy | Blogging to Nowhere
spotipi™: Spotify Connect on a Raspberry Pi – TurboTurbo!
The next level Mopidy music client - Dirk Groenen
mopidy · GitHub Topics · GitHub
Spotify and Pandora Wireless Remote Track / Artist / Album Display | Photons, Electrons, and Dirt
Build a multi-room audio system with Raspberry Pi — The MagPi magazine
Mopidy Pummeluff - A music box for kids – confirm blog
Perfect (and free) synchronous multiroom audio 🔊
Perfect (and free) synchronous multiroom audio 🔊
Build a multi-room audio system with Raspberry Pi — The MagPi magazine
Mopidy + Snapcast – Multi-Room Music-Setup - Hoerli.NET
Audio Control for DIY Stereo System(s) — Technically Wizardry
Turn Your Raspberry Pi Into a Home Music Server With Mopidy
Multi-room audio with Snapcast, Mopidy, and Home Assistant - #40 by MartiAbernathey - Blog - Home Assistant Community
Soundsync: an open-source Sonos alternative I built to synchronize and manage speakers in multiple rooms : r/homeautomation
Build a multi-room audio system with Raspberry Pi — The MagPi magazine
mopidy · GitHub Topics · GitHub
Multi-room audio setup w/ Mopidy, Pulseaudio & Snapcast - YouTube
Multi-room audio with Snapcast, Mopidy, and Home Assistant - Home Assistant
Multi-room audio with Snapcast, Mopidy, and Home Assistant - #40 by MartiAbernathey - Blog - Home Assistant Community
Multi-Room Audio System: Indoor and Outdoor Audio with Snapcast and Mopidy | Blogging to Nowhere
The next level Mopidy music client - Dirk Groenen
20 best alternatives to Mopidy as of 2023 - Slant
Home Assistant Multi room audio setup | Thomas shares makes
Build a multi-room audio system with Raspberry Pi — The MagPi magazine
Mopidy
Holy Grail of my Tinkering is so close yet so far: Sonos-like whole home audio. : r/homeassistant
