It's a constellation of tools that have the suffix "arr" - a winking nod to what a stereotypical pirate says, because they are commonly used for media piracy. S

It's a constellation of tools that have the suffix "arr" - a winking nod to what a stereotypical pirate says, because they are commonly used for media piracy. Some examples are Radarr, Sonarr and Prowlarr, but there's lots of other ones. They all kind of fit together nicely into a stack that can be used to self host your own automatic media downloading and streaming platform.