@v-fi , Yes, I'm modestly experienced with Roon--been using it for about 3 years now. I built a Roon ROC NUC before and it worked well til I wore it out. Recently I was using my Mac as the Roon Core.
Despite the amazing suggestions above, many of which I really wanted to try, I ended up with this as my new Roon Core and streamer. https://www.audiogon.com/listings/lisbcb0a-roon-labs-poor-man-s-nucleus-music-servers-docks
I think it sounds even better than the Lumin T3 into my LTA Aero DAC. The price is amazing. Seller was awesome to work with. The unit is badass. $600 + shipping from Poland.