I also built a time tracker library that tracks how much time was spent on the current open tab. It also detects when the user moves away from the page or comes back.
Actively - https://github.com/arkokoley/actively
For a GIS project, I needed to extract county level data from NASA's MODIS dataset. Wrote a bash utility to do that: https://github.com/arkokoley/modis_county_cropper
Also wrote a boilerplate latex template for Academic homework: https://github.com/arkokoley/latex-homework-boilerplate