Jellyfin is a free, open-source media system that allows end-users to manage and stream media from a dedicated server via multiple apps. The project is an alternative to proprietary media systems such as Emby and Plex, with no hidden agendas or premium licenses. The Jellyfin Server code repository is one of many projects developed by Jellyfin, with backend server development instructions provided on GitHub. Users must first install the .NET 7.0 SDK and ffmpeg to build the project, with a range of options to run the server from Visual Studio, Visual Studio Code, or the command line. Advanced configurations are available, including hosting the web client separately.
https://github.com/jellyfin/jellyfin