Sesame Database Manager - Lantica Software, LLC - Sesame, A Q&A-compatible Database Manager.
Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
DbFace - DbFace is an online database application & report building tool.
ioBroker - flexible and modular application for the IoT and Smarthome
Sheep - Membership and events for SMEs and nonprofits
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation