Even in Arcadia Am I is a user on octodon.social. You can follow them or interact with them if you have an account anywhere in the fediverse.
If you don't, you can sign up here.
4/ It's an "intercultural nexus of the low end global economy," a place where traders, tourists, entrepreneurs, asylum seekers, hustlers of all minor sorts, and in general the 'othered' of Hong Kong society go--largely in search of their fortune.