This would be several hundred lines in grunt.

scripts.json

{
  "start": "node --harmony server.js",
  "dev": "exec-parallel 'npm run watch' 'npm run watch:test' 'nodemon --harmony server.js'",
  "test": "mocha --harmony",
  "coverage": "npm run coverage:report",
  "coverage:build": "rm -rf coverage && node --harmony istanbul cover _mocha",
  "coverage:report": "npm run coverage:build && istanbul report",
  "coverage:html": "npm run coverage && node-open coverage/lcov-report/index.html",
  "build": "exec-parallel 'npm run build:js' 'npm run build:css'",
  "build:js": "browserify assets/js/main.js -o public/js/bundle.js",
  "build:css": "stylus --compress --out public/css assets/css",
  "watch": "exec-parallel 'npm run watch:js' 'npm run watch:css'",
  "watch:js": "onchange 'assets/js/**/*.js' -- npm run build:js",
  "watch:css": "onchange 'assets/css/**/*.styl' -- npm run build:css",
  "watch:test": "onchange '*.js' 'controllers/*.js' 'models/*.js' 'public/js/**/*.js' 'test/**/*.js' -- npm test"
}