Tried Tinker with TinkerOS.
tvh ran generally ok but broke under stress.
Occasional crash under multi recording load.
Plus some sort of lan issue with comms to a kodi client increasing with load.
Intermittent recording dropout believed to be when desktop working.
No PSU issues.
I think the issues were os-s/w issues not hardware or specific tvh.
Running Kodi on it gave somewhat similar issues.
Was the Armbian you used server or desktop?