Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
Double 2 - Giving you a physical presence when you can’t be there
ioBroker - flexible and modular application for the IoT and Smarthome
Perch - A bird’s eye view of social activity for you AND your competition.
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation
Virtual Booth - A photo booth for virtual events