Which ones?
Northern Iroquois Slavery
https://www.jstor.org/stable/482790How can a system be both agrarian and strong enough to survive contact with non-agrarian systems? How do you stop 10 people from secretly working hard and producing an extra ration of gruel right under your commie nose?
Pre-Colonial American societies were decimated by the biological warfare of the Europeans first. Now America turns its taste for biological warfare on itself. But, anyway, I digress.
I am talking about a voluntary system that works in some ways like wikipedia. I want to get together with others, under a libertarian system of free exchange, and build systems that are designed to meet core human needs as cheaply as possible. Then people can band together and buy those machines if they want, and they can share the output or whatever.
If 10 people want to go do something else, that doesn't affect me any more than Apple affects Wikipedia.