[laserson]

I would love to see how this was implemented. Is this on GitHub or equivalent somewhere?

[siriniok]

Sorry, it's not open sourced (at least yet), but I was using React and Mapbox to implement it.

You can see an example in pure javascript here:

https://docs.mapbox.com/mapbox-gl-js/example/cluster/

And how to build a similar app here:

https://levels.io/hoodmaps/