I also started off with a converted gaming PC. I went with unraid because there was a simple path to upgrading my drives. I started off with 1 and 2 TB drives and eventually upgraded over the years to 12+ TB drives.

From my brief research back then growing a pool in freenas was a headache where upgrading in unraid was easy.

What scanner do you have? My biggest hurdle in making real use of paperless revolves around the annoyance of using a flatbed that’s not within arms each of my desk lol