Eaze - Uber for medical marijuana
Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
Marijuana 101 - Free course to become a better cannabis user in 10 days
ioBroker - flexible and modular application for the IoT and Smarthome
Confident Cannabis - The stock exchange of weed
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation