Sonarr lacks an RSS feed connection option that would allow an RSS reader to receive Sonarr events. Sonarr to RSS fills that gap!
Sonarr to RSS runs as a standalone service that you configure a Sonarr Webhook connection to send events too. It then pushes events to an RSS (or Atom or JSON) feed and provides a paginated website to browse historical events. Point Thunderbird, or your favourite RSS reader to it and immediately know when a new episode has been grabbed and downloaded or when your server enters an unhealthy state.
Available on docker hub or can be run independently with Node.js.