The document discusses using Grunt.js to automate and improve workflows when building web sites and applications. It describes how Grunt.js can be used to speed up repetitive tasks like minification, compilation of CoffeeScript to JavaScript, compilation of LESS to CSS, running a web server, and automatically refreshing the browser on changes. The presenters then demonstrate setting up a Gruntfile to automate common tasks like compiling CoffeeScript and LESS, separating pre-compiled from production code, and watching for changes.
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