1. this is so cool. i'd love to see more name for the regions!
2. nit: one repo dear to my heart dbt-labs/dbt-core was previously dbt-labs/dbt as well as fishtownanalytics/dbt. they show up as unique nodes on your map. what most interesting to me is that each name of this repo links to a different set of related repos?
The connections are inferred from stargazers. If they lead to different set of related projects it might be a sign that different group of people gave stars different things at that time.
Github of course has much more dimensions than a flat 2d surface can show