gistfile1.js

// make andrew a gist of a Gruntfile with watch and express

module.exports = function(grunt){
  
  grunt.initConfig({
    concurrent: {
      dev: ['watch:sass', 'watch:browserify'],
    },
    
    watch: {
      browserify: {
        files: ['public/js/**/*.js'],
        tasks: ['browserify:dev'],
      },
      sass: {
        files: ['public/sass/**/*.scss'],
        tasks: ['sass:dev'],
      },
    },

    sass: {
      dev: {
        files: {
          'public/css/main.css': 'public/sass/main.scss',
        },
      },
      prod: {
        // prod jazz
      },
    },
    
    browserify: {
      dev: {
        files: {
          'public/build/app.js': 'public/js/app.js'
        },
      },
      prod: {
        // prod jazz
      },
    }
    
  });
  
  grunt.loadNpmTasks('grunt-concurrent');
  grunt.loadNpmTasks('grunt-contrib-watch');
  grunt.loadNpmTasks('grunt-contrib-sass');
  grunt.loadNpmTasks('grunt-browserify');
  
  grunt.registerTask('default', ['concurrent']);  
};