EDIT: Should probably mention that as soon as Kbin sorts our their technical difficulties, then you can use this exact approach to pull in Kbin magazines (https://kbin.social/m/cs, for example)

Is that why I can't do the same thing from Kbin to a lemmy community?

I made a pretty simple one a few years ago https://github.com/fireshaper/parcelpony

You do have to create an account at trackinghive.com to use their API (free for now). All the instructions are in the readme.

He thinks he gets to make the deal. We know how good his art of the deal is.

Someone on Tilde posted that they used to work for Reddit and the way they have the front page set up to pull your subscribed subreddits and the ones that you might like to read from is spaghetti code and very brittle.