Yes, and it’s a bit weird way of coupling afaik. Not sure it’s used that much? I know a couple of companies are all-inn on federation, and Apollo is pushing it. But doesn’t seem to get that much adoption.

Well, we have an internal mandate, which means I get to work on it.

What's this federation stuff?

Apollo federation

It’s basically making a gateway using different graphql micro services

I don't know much about it, but graphql-kotlin supports it, so it might be useful as inspiration.