[MM3-users] export/import list?

I'm migrating to a new Mailman3 instance, finally escaping a fairly old (3.1.1) and problematic distribution repo install on a Linux VM and moving to a venv install in a native SmartOS Zone. I've gotten everything running well and integrated with our (fairly complex) mail server. I'd like to begin migration of the lists on the old mm3 instance.

Is there a way to export a list from one Mailman 3 instance and import it into another, on a different machine? Ideally some way to capture its settings, members, members' settings, etc?

         Thanks,
         -Dave

-- Dave McGuire, AK4HZ New Kensington, PA