Make Your Own Period Tracker

made by alizauf, submitted by nicholasbs
Aliza wanted to own her own data, so she built her own period tracker using a spreadsheet. This post walks you through how you can do this, too.

Coördinator

made by alizauf, submitted by nicholasbs
A visual interface for turning an SVG into XY coördinates.

The Bike Electric

made by alizauf, submitted by porterjamesj
This app uses CitiBike's open data feeds to help you find the electric bike riding experience of your dreams. You can see the code here: https://github.com/alizauf/the-bike-electric