A used laptop with a messed up screen will work as well.

Ohhhhh… Let me see if this Dell I’m using can run ddr4, I would like to have 16GB of ram

It is but ddr5 is not cheap

This is the way.

I find 8th gen i5 and i7 laptops under 200 all over eBay. Hard to beat.

I see a ton of i5-8th gen 2-in-1s with dead batteries, but under 100 on ebay

Just look at the processors in the Synology offerings, you didn’t need much to run a bunch of services.