Has anyone written up a document of how their fantasy society would operate, from a governance/operational perspective? Feels like a better approach than relying on rapidly-shifting labels/semantics.

I'm trying to write one rn, good exercise.

yes. https://asgardia.space/en/ the oh network state

A doodler and computerer. I like permissive/permissionless open source, smart contracts, p2p systems, room-scale VR, and NixOS.

Currently: WhatsABI

True, those are good examples but I mean more personal ones: Have you tried braindumping how your dream society would operate?

This is the alt account of Sister Hazel. Writings at https://powerlaw.systems

That's a great starting point, would love to read yours too. I'll DM you a draft of mine, I feel like I need a few passes of critique before I'm comfortable with it. :)

This is super interesting to me. Would love to read what you come up with. I wrote about certain ideas and rules that would improve current democracies in my mind, but I did not fully line out a whole another system in its totality yet. That sounds quite challenging to be honest.