Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
Square - Square helps millions of sellers run their business-from secure credit card processing to point of sale solutions. Get paid faster with Square. Sign up today!
ioBroker - flexible and modular application for the IoT and Smarthome
Lightspeed - retail and restaurant point-of-sale, ecommerce, and omnichannel solution
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation
ITSCircle POS - ITSCircle POS is a point of sale solution for retail stores.