2. PrototopeSwift library of lightweight interfaces for prototyping, bridged to JS
5. SnippetsCode related to collecting and pushing weekly snippets
8. GuacamoleGeneral Use Machine Learning for Learning Library
11. Khan ExercisesA (deprecated) framework for building exercises to work with Khan Academy.
15. PerseusPerseus is Khan Academy's new exercise question editor and renderer.
19. FrankenserverA fork of the Google App Engine SDK with modifications required by Khan Academy
20. Gittip GdocExtract records from a Google Doc spreadsheet and bulk set the results on Gittip.
22. AphroditeFramework-agnostic CSS-in-JS with support for server-side rendering, browser prefixing, and minimum CSS generation
23. Tota11yan accessibility (a11y) visualization toolkit
25. Khan ApiDocumentation for (and examples of) using the Khan Academy API
28. KASA lightweight JavaScript CAS for comparing expressions and equations.
29. webapp-i18n-bigfileThe next generation of webapp-i18n, starting in April 2015, that uses git-bigfile to avoid storing large resources.
32. alertlibA small library to make it easy to send alerts to various platforms
40. culture-cowNO LONGER USED! This is Culture Cow for HipChat. See Culture Cow code for Slack here: https://github.com/Khan/culture-cron