Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
Google Home - Set up, manage, and control your Chromecast, Chromecast Audio and Google Home devices.
Gladys - An open-source home assistant powered by a Raspberry Pi 🗣️
Sonos One - A self-contained, Alexa-connected speaker from Sonos
PiDome.org - PiDome is the Home Automation Platform for the Raspberry Pi containing a server, multiple clients with user friendly interfaces
SYMFONISK - A new speaker lamp by Sonos and IKEA