Thanks for the reply. I guess I did not understand what ROCK is. My MAC Mini works great and I have zero intention of getting a NUC/Linus setup.
I am interested in a OS developed by Euphony Audio (EA) that I think would accomplish something similar to ROCK setup in that the EA system completely dominates the computer as a server only setup. I think it also works with Roon to be come an Endpoint like it is now?