text: 'use strict';
  
  var express = require('express');
  var path = require('path');
  
  module.exports = function(done) {
      var app = express();
      var port = process.env.PORT || 80;
      var dir = path.join(__dirname, '..');
      console.log('Servering static files from', dir);
      app.use(express.static(dir));
  
      app.listen(port, function() {
          console.log(`Listening on http://localhost:${port}/ for requests.`);
          done();
      });
  };
  