For me the challenge is that right now my wonderlust and comitments require me to travel extensively, so I can't be a part of such a community for very long.
Having reviewed my options I arrived at two. Either organize something caravan style (perhaps on a boat, since it is somewhat easier). Or seed and spend time building several such communities in different parts of the world, and then travel between them. Perhaps spending time as part of existing communities in places where they exist. Where my friends moved seems like a good such place to start.

Anyhow, that is my plan for forseeable future!