I have a pretty standard *arr stack going, but my media repo is stored on a single (albeit large) drive.
In the future, if I want to add storage, how would I configure the apps to look in multiple places to build their libraries? Is there some documentation someone can point me to?
Unraid is the GOAT for self hosting. An excellent way to learn VMs, Docker, and Linux in general. They have an “app store,” which is community templates for Docker containers, and have all the *arr programs you could want. Drive management is super easy, too.