It works like email. All instances talk in the background between each other.

@sting here’s me trying to figure out how activity pub works. https://beehaw.org/comment/188913.
The entire thread that follows is very useful for understanding how this works, in a simple way.

Edit: markdown wasn’t working.

Same lol. But I’m glad it send to be working. I’m getting used to this slowly but surely.

And it seems to be improving fast enough, and I’ll try to contribute soon, too, once I get used to how this all works.