Eh, looks like a (sorta) fun project. But you can turn pretty much any Linux machine into a home server, so this isn't really that surprising - and as plenty have pointed out here, there are better hardware choices.

I have a file/dns server in my basement that is built of my desktop upgrade leftovers. Every so often I swap out the mobo/cpu and reinstall a Debian flavor of some sort. Run my setup scripts, start up my docker services and hey, presto! My server abides.