Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
StepShot - Make knowledge sharing more time-efficient!
ioBroker - flexible and modular application for the IoT and Smarthome
Sygic Travel Maps - Itinerary planner for independent travelers
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation
Visit a City - Create your personal travel guide