old_contents: 'use strict'
  
  var open = require('opn')
  var meow = require('meow')
  var degree = require('./')
  
  var cli = meow({
    help: [
      'Usage',
      '  degree [entries...]'
    ]
  })
  
  var entries = cli.input
  if (!entries.length) throw new Error('entries are required')
  
  degree(entries, cli.flags)
    .on('connect', function (server) {
      var uri = server.uri
      console.log('Server running at', uri)
      open(uri)
    })
  
new_contents: #!/usr/bin/env node
  
  'use strict'
  
  var open = require('opn')
  var meow = require('meow')
  var degree = require('./')
  
  var cli = meow({
    help: [
      'Usage',
      '  degree [entries...]'
    ]
  })
  
  var entries = cli.input
  if (!entries.length) throw new Error('entries are required')
  
  degree(entries, cli.flags)
    .on('connect', function (server) {
      var uri = server.uri
      console.log('Server running at', uri)
      open(uri)
    })
  
subject: Add node shebang