Developing quick and simple. Babel, Browserify, Stylus and Server simple only with package.json

package.js

{
  "name": "public_app",
  "version": "2.0.0",
  "description": "",
  "author": "Eduardo Paixão (@duduindo)",
  "license": "MIT",
  "watch": {
    "js": {
      "patterns": [
        "./assets/js/"
      ],
      "extensions": "js"
    },
    "css": {
      "patterns": [
        "./assets/css/"
      ],
      "extensions": "styl, css"
    }
  },
  "scripts": {
    "postinstall": "mkdir -p assets/css assets/js dist; touch ./assets/css/common.styl ./assets/js/app.js index.html",
    "css": "stylus --compress ./assets/css/common.styl -o ./dist/common.css",
    "js": "browserify ./assets/js/app.js -t babelify --outfile ./dist/common.js",
    "start": "concurrently npm-watch \"http-server -p 8080\" "
  },
  "devDependencies": {
    "babel-cli": "^6.24.1",
    "babel-preset-latest": "^6.24.1",
    "babelify": "^7.3.0",
    "browserify": "^14.3.0",
    "concurrently": "^3.4.0",
    "http-server": "^0.9.0",
    "npm-watch": "^0.1.8",
    "stylus": "^0.54.5"
  }
}