Cirrus7 nimbini media edition, fanless NUC10i5, 16GB RAM, 250 GB Samsung SSD 970 EVO Plus for Roon ROCK, 4 TB Samsung 860 EVO for data.
I know, overspecced for Roon, but this way it is more than future proof and it was hard not to click on stuff during configuration because it was always just 50 Euros here or there (well except for the 4 TB SSD 
). Also, came out at the same price as the basic Nucleus and after all the spending this year who cares anymore