Lineman
Lineman helps you build fat-client JavaScript apps
Lineman is a Node.js/Grunt-based toolchain for developing fat-client web apps. It provides asset compilation (JS, CSS, templates), live server, file-watching with auto-tests, mock backends, and build optimizations. It simplifies SPA development without tightly coupling frameworks, and includes plugins for blogging, Angular/Ember, etc. Though less maintained nowadays, it was pioneer in front-end tooling.