TrueNAS CORE is enterprise-quality software-defined storage that can be used without restrictions or cost. It is also the core of the full-fledged enterprise edition, TrueNAS Enterprise, which provides the additional fault-tolerance, performance, and support that businesses and critical applications require.
JDownloader is a free, open-source download management tool with a huge community of developers that makes downloading as easy and fast as it should be.
Sonarr is a PVR for Usenet and BitTorrent users. It can monitor multiple RSS feeds for new episodes of your favorite shows and will grab, sort and rename them. It can also be configured to automatically upgrade the quality of files already downloaded when a better quality format becomes available.