the ihost in the current shape I had gotten last week was not that great or a real mess. You do not have access to the command line therefore no chance to move your installation files to a save place cause with the first update from HA announced where I pressed OK and lost all data.
Therefore I would love to run HAOS with all its glory on the ihost instead of running that on an older Pi3 like I do right now. But I have no clue how too port it. Sorry.