I put this on another comment, but I like it so much I'll do it again here. This is fabulous, and pretty much the graph you're looking for: https://anvaka.gith

I put this on another comment, but I like it so much I'll do it again here. This is fabulous, and pretty much the graph you're looking for: https://anvaka.github.io/map-of-github/ https://anvaka.github.io/map-of-github/