Bless My Request - An online request platform and digital Jukebox
Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
Gramofon - Turn your sound system into a WiFi music player
ioBroker - flexible and modular application for the IoT and Smarthome
Jukebox - Collaborative music player
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation