Jellyfin
Jellyfin is the Free Software Media System that puts you in control of managing and streaming your media. There are no strings attached, no premium licenses or features, and no hidden agendas.
RomM
RomM is your beautiful, powerful, self-hosted rom manager. Scan, enrich, and browse your game collection with a clean and responsive interface. With support for multiple platforms, various naming schemes and custom tags, RomM is a must-have for anyone who plays on emulators.
HomeAssistant
Open source home automation that puts local control and privacy first. Powered by a worldwide community of tinkerers and DIY enthusiasts.
Tdarr
Tdarr is a self hosted web-app for automating media library transcode/remux management and making sure your files are exactly how you need them to be in terms of codecs/streams/containers etc. Designed to work alongside Sonarr/Radarr and built with the aim of modularisation, parallelisation and scalability, each library you add has its own transcode settings, filters and schedule. Workers can be fired up and closed down as necessary, and are split into 3 types - 'general', 'transcode' and 'health check'. Worker limits can be managed by the scheduler as well as manually. For a desktop application with similar functionality please see HBBatchBeast.
Radarr
Radarr is an independent fork of Sonarr reworked for automatically downloading movies via Usenet and BitTorrent. The project was inspired by other Usenet/BitTorrent movie downloaders such as CouchPotato.
Nzbget
NZBGet is a binary downloader, which downloads files from Usenet based on information given in nzb-files. NZBGet is written in C++ and is known for its extraordinary performance and efficiency.