GitHub - Lockzi/node-sonos-mqtt-api: A simple HTTP API for Sonos for easy automation. Hostable on any node.js capable device, like a raspberry pi or similar.
node-sonos-http-api + Shortcuts for Album Art : r/shortcuts
HOMEAUTOMATION: Build your own speaker proxy for your SONOS speakers – martinsblog.dk
node-sonos-http-api - Bountysource
SonosRemote - A remote for Sonos installations running on an ESP8266 and using Sonos HTTP API - Showcase - OctoPrint Community Forum