This would be a lovely thing if signal also enables the interoperability.
I can’t remember where I’ve seen it, probably on the signal community forum, but I don’t believe signal have any plans to integrate the interoperability stuff; specifically because they can’t guarantee their users won’t have metadata collected by third parties like Meta.
You’ll want to look into the *arr apps.
Specifically… sonarr, radarr and prowlarr.
Wiki is: https://wiki.servarr.com/
Also, jellyseerr looks like a nice requesting front end https://github.com/Fallenbagel/jellyseerr
I haven’t used jellyseerr as I use a VPS that only offers Ombi, but that’s pretty good too.
It’s most likely easiest to use docker to spin everything up.