Site: https://gruntjs.com/
Grunt setup with Webpack for JS bundeling.
I personlay moved to Gulp and/or Webpack. So I am not using Grunt that much any more.
Still this setup rocks! Since it builds the CSS just the way I want it. And JS via the power of webpack.
I was planing to also add an Uglify option so you don't need the Webpack. But I am not going to add this anymore.