Grav - The modern open source flat-file CMS
jQuery - The Write Less, Do More, JavaScript Library.
Bludit - Bludit is a web application to build your own website or blog in seconds, it's completely free and open source. Markdown support.
React Native - A framework for building native apps with React
HTMLy - HTMLy is an open source databaseless blogging platform. A Flat-File Blog and Flat-File CMS written in PHP prioritizes simplicity and speed.
Babel - Babel is a compiler for writing next generation JavaScript.