I have installed Volumio on a Raspberry PI 4, 2GB Ram, dedicated exclusively and connected to a USB DAC. The result is absolutely amazing: extraordinary sound quality, equal to or better than other high-cost sources in the same installation. 384khz audio in DSD over PCM. Not a noise, not a click, not a jump ... Absolute silence when the music is not playing. Better than or equal to any other streamer I've tried. Use without problems associated with a local music server, or playing Qobuz or Tidal from an Android program (ideal with Bubble UPnP). Issue to improve: the playback of Qobuz or Tidal managed from Volumio has not worked well for me, the tracks are cut at mid-playback. But both Qobuz and Tidal work well managed from Bubble, so I keep the 5 stars. Congratulations!