Do ActivityPub services work over "The Dark Web"/i2p/Tor? More specifically, could one make a sort of "Hidden Fediverse"?

**EDIT (2023-07-31T22:18:52Z):**I have realized that I was not clear in my original intent for this post – it could be interepereted to mean that I am asking whether or not you could access, for example, Lemmy through the Tor browser. This is not what I meant. What I was more alluding to was if it were possible to create a...