Model City Mondays is thing in siskind's substack, and Prospera is featured constantly.
It's seasteading that's the strictly libertarian thing where you fuck off to the ends of the earth to do drugs and marry twelve-year-olds. Despite the considerable overlap charter cities seem more of a rat/stembrained thing were you decide you're going to be the one to do a polis from first principles but get it right this time.
Well done.