Katana MRP - Katana Cloud Inventory gives you a live look at all the moving parts of your business — sales, inventory, and beyond. Combining a visual interface and smart real-time master planner, Katana makes managing inventory and manufacturing intuitive.
Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
ESP - C language web framework.
ioBroker - flexible and modular application for the IoT and Smarthome
The Manager's Red Book - Other Retail
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation