Roots
A toolkit for rapid advanced front-end development
Roots is a CoffeeScript-based toolkit designed to speed up front-end and static site development. It functions as a fast, flexible static site generator but also offers MV* integration with frameworks like Backbone or Angular. Roots comes with extensible pipelines, asset compilation, template engines (Jade, etc.), live reloading, server integration, and plugin support. Widely used in production, it's maintained actively and is MIT-licensed.