Jackett works as a proxy server: it translates queries from apps (Sonarr, Radarr, SickRage, CouchPotato, Mylar, DuckieTV, etc) into tracker-site-specific http queries, parses the html response, then sends results back to the requesting software.

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.

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.

Jellyseerr is a free and open source software application for managing requests for your media library. It is a a fork of Overseerr built to bring support for Jellyfin & Emby media servers!

Prowlarr is a indexer manager/proxy built on the popular arr .net/reactjs base stack to integrate with your various PVR apps. Prowlarr supports both Torrent Trackers and Usenet Indexers. It integrates seamlessly with Sonarr, Radarr, Lidarr, and Readarr offering complete management of your indexers with no per app Indexer setup required (we do it all).

Fluidd is a lightweight & responsive user interface for Klipper, the 3D printer firmware.