Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
OpenTheatre - Search movies, series, anime, subtitles, torrents and archives from open directories
ioBroker - flexible and modular application for the IoT and Smarthome
Veso - Veso is an open source media server. An emby/jellyfin fork that will move to a js react framework and focus on remote/rclone mounted media rather than local storage.
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation
Home - Securely control all your HomeKit accessories from your favorite iOS device.