My setup is pretty easy. I got a Lenovo M900 Tiny from eBay, add a 2tb drive (i wouldnt go smaller), install Umbrel from a USB drive (the website has good directions), install bitcoin node from the Umbrel store, wait about 3 days for full node to download. That's it for a basic node.

Look also into start9

@npub126nt...e9ll or @Umbrel ☂️ is a really good and super easy starting point.