Since I was planning on making this a client side hack, I can’t affect how the server or other clients render it. I was thinking of making it just a small length, possibly with small text, which can be expanded like spoiler text. Then the existing markdown should support it.

I remember someone here on the fediverse used to post with a kind of sig ( I think it was something like a copyright disclaimer.) I haven’t seen them in a while though, and not sure what client they were using.

Plus no one uses my custom voyager fork AFAIK, so I would be the only one with an sig. which would be kind of dumb.