echarts-5.5.0-rc.2/dist/server.js

const express = require('express');
const app = express();
const path = require('path');

// Serve static files from the current directory
app.use(express.static(__dirname));

// Start the server
const PORT = process.env.PORT || 3000;
app.get('/favicon.ico', (req, res) => res.status(204));
app.listen(PORT, () => {
  console.log(`Server is running on http://localhost:${PORT}`);
});