note to myself and anyone with same problem who finds the thread:

stumbled on psync: A naive tool for syncing partitions using rsync which sounds like it’s at lest trying to do this task.

No documentation, no users, no project changes in 6 years… Will give it a try another time.

Did you ever find out? I was just trying some gaming via a retro console and it is pretty cool! Seems very promising, certainly people must be doing other stuff.

it might be time for the Mbin team to start getting a little more free with the fork.

the impression i had of mbin was very “anything goes” did that not end up being how things shaped up??