I use a Dell Wyse 5060 Thin Client as my file server and the reason for that is I needed something that is low powered as electricity isn't cheap in my country . My backup solution is really simple and cheap. I use a HDD docking station (only has one slot) as the main and a laptop HDD enclosure as secondary.

I've configured a script that would mirror the main drive to the laptop HDD. This executes every midnight. Then every week or two, i perform a cold storage backup to another laptop hard drive. This way, I keep a third snapshot in case either one of those two hard drives go out. Or if i need to restore a file to the original.

My thin client runs Windows 11 and I'll probably get crucified for it but in all honesty, it works just fine. It doesn't connect to the internet since I restricted it to only LAN on my router. If it needs an update, I simply just download the latest patch from Microsoft on another computer and then transferring it over to the server. File transfer speeds are what i expect from a mechanical HDD.