Greeks don't normally get to complain about cultural appropriation because the things we usually think are being appropriated from us were never really "ours" in the first place. We were happy fishermen and goat herders calling ourselves "romioi" (romans) and then a bunch of westerners who read some books came and started calling us descendants of the ancients. And to be free from the Turks, we played along and learned from them how to be "proper" descendants of the ancients.
Yet Greek nationalists, from the Greek state and its history books all the way down to the fascists of Golden Dawn, claim exactly the opposite.
Sunbeam City is a Libertarian Socialist solarpunk instance. It is ran democratically by a cooperative of like-minded individuals.