I don't know of anything similar in any context. But i mention it now particularly in relation to scale, and how world -level issues can only be solved with world-level government, and the absolute necessity for reduction in scale of all things in order to enable more egalitarian options at all. And the inherent legitimacy that comes with necessary management districts.

Also, i don't acknowledge Zomia or any civilization to be non-heirarchical, only horizontally disbursed. Even an egalitarian council of heads of household, which is a functional minimum, is a heirarchical system. But perhaps you intend something more about central planning?