Scala Lang - Scala is a pure-bred object-oriented language that runs on the JVM
JavaScript - Lightweight, interpreted, object-oriented language with first-class functions
CKEditor - Real-time collaborative future-ready rich text editor
Elixir - Dynamic, functional language designed for building scalable and maintainable applications
Qt - Powerful, flexible and easy to use, Qt will help you not only meet your tight deadline, but also reduce the maintainable code by an astonishing percentage.
RubyGems - RubyGems. org is the Ruby community's gem hosting service. Instantly publish your gems and then install them. Use the API find out more about available gems. Become a contributor and improve the site yourself.