As if that weren't bad enough, the entire tool runs server-side, requiring you to upload your data, for precisely what reason? It's not like these aren't rathe

As if that weren't bad enough, the entire tool runs server-side, requiring you to upload your data, for precisely what reason? It's not like these aren't rather boring, bog-standard visualizations. It would be rather more interesting to have a tool that processed and dumped git history data, locally, into Postgres, sqlite or whatever with a standard DB schema. Nicely structured, that data would then be readily available for investigation with whatever viz tools you had to hand (d3 and other charting libs, R, Tableau, etc.)