Gulp.js - Automate and enhance your workflow
Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.
Assemble - The static site generator for Node.js, Grunt.js and Yeoman
Java - A concurrent, class-based, object-oriented, language specifically designed to have as few implementation dependencies as possible
Yogini - A cross-platform layout engine, by Facebook
Rust - A safe, concurrent, practical language