Kodi - Kodi is an award winning free and open source media player that got its start on the Xbox console.
Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
Emby - media server for personal streaming movies tv music photos in mobile app or browser for all devices android iOS windows phone appletv androidtv smarttv and dlna.
ioBroker - flexible and modular application for the IoT and Smarthome
Serviio - Web on Big Screen. Serviio enables playback of online sources like RSS feeds, live streams or web site content so that you can listen to your favourite podcasts or watch latest TV programmes published online.
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation