Simply GRUNT playground
Use of grunt plugins. (some examples)
Install Node.js and then:
$ git clone git://github.com/krainet/GruntPlayground2
$ cd GruntPlayground2
$ sudo npm -g install grunt-cli
$ sudo npm installHappy hacking!
GruntPlayground is a simple playground Git tagged for teach.
Grunt-based build system to ensure maximum productivity.
All you have to do is clone it and start coding!
To teach Grunt
Ampliate doc.
See the issues list. And feel free to submit your own!