Ruby on Rails - Ruby on Rails is an open source full-stack web application framework for the Ruby programming...
PowerSchool - PowerSchool provides a K-12 education technology platform for operations, classroom, student growth, and family engagement.
ASP.NET - ASP.NET is a free web framework for building great Web sites and Web applications using HTML, CSS and JavaScript.
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.
wai-routes - Type safe routing framework for wai
Clever - syncing between education applications for K-12 schools