You offer the longitudinal visualization of programming languages used. You also have the drop down longitudinal visualization for individual projects. I think it would be really useful to see an 'at a glance' visualization of projects they've been most active on over time i.e. I would like to be able to quickly say with high conviction, 'I see you've been doing a lot of work on X project recently.' It's a little challenging to do that currently across github and gitsight.