PowerSchool - PowerSchool provides a K-12 education technology platform for operations, classroom, student growth, and family engagement.
FINAL CUT - Library for creating terminal applications with text-based widgets
Clever - syncing between education applications for K-12 schools
termbox - Termbox is a library that helps making terminal-based pseudo-GUIs.
Teachable - Create and sell beautiful online courses with the platform used by the best online entrepreneurs to sell $100m+ to over 4 million students worldwide.
Slang - Slang is a powerful visual programming language using a newly developed stream-based paradigm.