Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
Cowboy - Small, fast, modular HTTP server written in Erlang.
ioBroker - flexible and modular application for the IoT and Smarthome
BikeSharing - Easily borrow a bike anywhere
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation
Spin - A station-less bikeshare. Pickup and drop off anywhere. 🚲