This is running roon (previously lms), Plex server, media and a number of other services. Personally I have win10 with m.2 ssd for system and hybrid disks for data. I have hdhomerun for broadcast TV which although supported by plesk and emby, I find works best in the native android live app which is fantastic (all though less used these days with iPlayer, Netflix and prime all on the shield). Have streamed from UK to Greece with good quality when on holiday! Emby probably improved since I last used, and may test again, but no real issues with plex. Primarily because lifetime membership makes accessing remotely fantastic. I tried emby many times (even getting lifetime) but preferred Plex for a few reasons. The same problem with a few usb dacs (although not tried DAC in shield, but hate input switching on amps, particularly with hdmi being completely capable. I found jriver a pita even though I had the license I couldn’t get things to work as I wanted. Same as me - shield is a massive improvement over windows as htpc.

Jriver nvidia shield