Current (temporary) setup that is working pretty well:
Sony VPCS111FM with 8GB ram and I5 CPU M 430 @ 2.27GHz (Wife's Laptop

- i'll swap disks when she needs to use it)
128GB SSD (That's more "definitive")
I have 2 Dacs that i'm currently testing and both seems to work well:
Cambridge Audio Dacmagic 100 and
HRT Music streammer III
(With the HRT i see this messages in log: "usb 2-1.1: current rate 4500480 is different from the runtime rate 44100" - But it seems to play well. Anything to worry?)
Music is stored in Homemade Nas (Xigmanas) and shared to SnakeOil by CIFS
Did try to put that disk in a Asus eeebox 1036 that i have around and not used, but UEFI crap didn't "allow" me to do it

(i'll make another post about that and some other doubts that i may have)
Great Piece of software - Immediately saw improvement over previous setup with Quod Libet in my normal usage pc , an old Asus Rog G51 with exactly same dacs used and Ubuntu 20.04.
Congrats Agent Kith. Thanks for such great piece of software.