Personal Robots - Discover a new toy robot every day
Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
Lego Boost - Build + Code + Play
ioBroker - flexible and modular application for the IoT and Smarthome
Nerdify Bot - First AI-powered tutor bot for Facebook Messenger
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation