I definitely couldnt do it in a weekend. But I have been wondering how new cities are born, like not a suburb beside an existing city, but the ones that are in

I definitely couldnt do it in a weekend. But I have been wondering how new cities are born, like not a suburb beside an existing city, but the ones that are in the middle of "no where". And what would stop a few thousand people from having a mutual interest to start something in the middle of no where? Most of the jobs could be remote save for the ones that support the citizens themselves. maybe this would fail for the same reason those preplanned cities in china failed? IDK. I'm definitely not implying it's dead easy, just that maybe it's easier than fitting 1M more people in a city that is already dense and full of NIMBYs?