And the forks/network tree.

For any given project, are there any forks / is this one a fork, and which ones are more recently/actively maintained, and what are the changes?

That network display where you can not only see all the forks in a timeline, but click on the individual commits is super handy.

Idk how you'd assemble that out of a federated system. It's probably possible but seems like it would require a lot of update traffic going in all directions between all nodes.