A simple question to this community, what are you self-hosting? It’s probably fun to hear from each-other what services we are running.
Please mention at least the service (e.g. e-mail) and the software (e.g. postfix). Extra bonus points for also mentioning the OS and/or hardware (e.g. Linux Distribution, raspberry pi, etc) you are running on.
They search IMDb-like services for movies (radarr) or TV shows (sonarr). They can then look at your media folder and see what’s present /missing. They do stuff like bulk rename and tag files for injesting to a media server (like jellyfin). They also automatically search online torrent indexes and can queue up torrents for download using an external download server (like transmission). Basically it just makes the process easier.
