My system is simple one I use an Intel NUC i5 !.8 with 16GB memory SSD boot disk all music file kept on an external USB 3 drive.
The NUC holds your program and connects via USB to a Resonessence DAC Mirus and preamp functions volume mostly. The system prefore flawlessly under old software.
I have put close to 100 hours on this and it’s killing my love of Roon. What I would please ask is that you do a remote login on my machine get back up and running. I am more than willing to pay for the service.