Where can I see the forks?

[light]

From that thread (emphasis mine)

@jorge

The Aragon Court has taken some ideas from Kleros and implemented them with a better architecture and cleaner code. We’ve never had a problem recognizing that Kleros has had a big influence in our work and implementation of the Aragon Court. But even though the Aragon Court project started as a fork of Kleros’ code, we haven’t been able to reuse any code.

You can find more technical details about Aragon Court in this blog post:

https://blog.aragon.one/aragon-court-v1-technical-details/

And of course to see that it is not a fork, simply compare the code repos of Aragon Court and Kleros and you can easily see no code has been re-used.