text: const express = require('express');
  const path = require('path');
  const PORT = 5500;
  
  const app = express();
  app.use(express.json());
  app.use(express.static(path.join(__dirname, 'static')));
  
  app.get('/', (req, res) => {
    res.status(200).sendFile(path.join(__dirname, 'index.html'));
  });
  
  app.get('/index.html', (req, res) => {
    res.status(200).sendFile(path.join(__dirname, 'index.html'));
  });
  
  app.get('/offline.html', (req, res) => {
    res.status(200).sendFile(path.join(__dirname, 'offline.html'));
  });
  
  app.get('/service-worker.js', (req, res) => {
    res.status(200).sendFile(path.join(__dirname, 'service-worker.js'));
  });
  
  app.get('/tulo', (req, res) => {
    res.status(200).sendFile(path.join(__dirname, '../tulo.js'));
  });
  
  app.listen(PORT, () => console.log(`listening on ${PORT}`));
  