What to do with a pi4 after canceling my roon subscription? Equipped with additional allo digi spdif hat and external psu. Well, discovered volumio OS and I am very happy with this solution now. The qobuz integration works fine and handling of the Android remote on tablet is comfortable for me. Missing power switch of rpi4 is solved by connecting the psu to a furman AC 210 model. Clears sound and saves the equipement as well. Enjoy the music.