Haz deploy de un sitio Gatsby

import express from 'express';
import path from 'node:path';

const app = express();
const distPath = path.join(import.meta.dirname, 'public');

app.use(express.static(distPath));

// SPA fallback: serve index.html for any route not matched above
app.use((req, res) => {
  res.sendFile(path.join(distPath, 'index.html'));
});

// Square Cloud sets PORT=80; 0.0.0.0 accepts connections from outside the container
const port = Number(process.env.PORT) || 80;
app.listen(port, '0.0.0.0', () => console.log(`Server running on port ${port}`));

MAIN=server.mjs
MEMORY=512
VERSION=recommended
DISPLAY_NAME=My website
SUBDOMAIN=mywebsite

"scripts": {
  "start:prod": "serve -s public"
}

RUNTIME=nodejs
START=npm run start:prod
MEMORY=512
VERSION=recommended
DISPLAY_NAME=My website
SUBDOMAIN=mywebsite