I’ll start. Did you know you can run a headless version of JD2 on a raspberry pi? It’s not the greatest thing in the world, but sometimes its nice to throw a bunch of links in there and go to sleep.
General information on all the software setup and configuration: https://wiki.servarr.com/
Flexible solution based on docker but complicated for a beginner: https://nick-rondeau.medium.com/creating-the-ultimate-media-server-with-docker-portainer-plex-and-ubuntu-server-f47a4503897f
Simple script based solution (easy for beginner but less flexible): https://swizzin.ltd/