Mine runs on a mini PC(NUC) hooked up to a hard drive array for the storage. So it’s basically a tiny PC and another box full of hard drives(not required, but you’ll need space somehow…). Pc was around $250.

Very easy and you don’t need to set up an actual “server rack”. Hell, you can use an old laptop.

Also, keep in mind you can hook the miniPC up to your TV or another PCs monitor(assuming you have extra plugs). You don’t need a dedicated monitor for this. Mine uses the same monitor as my gaming PC on a different input. It basically lives on my keyboard tray tucked away running.