About a year ago I started with Volumio on a Raspy4 and a hifiberry Dac. Volumio is very flexible and esay to use. Albumcovers, Artistpictures and the webbrowser are working really fine on Laptop an smartphone. Because of the poor Soundquality of the Hifiberry Dac+ Pro now i changed to a Volumio Primo Hifi edition as Player and usb-bridge and use a matrix audio elemet x as Dac. The emenet x was imedyatly identifyed by the Primo. Soundquality now is fanthastic. I like the little infos to the artists and albums. Sure, there isn't as much information as there is with Roon, but for me it's exactly the right thing. I only wish for a few small tweaks for future updates. It should not only be possible to add individual tracks or albums at the end of the queue, but also next after the current song.