Simple

This starts an HTTP server listening on port 3000. It responds to all requests with a Response with status 200 and body "Welcome to JSTime!".

See JSTime.serve for details.

const server = JSTime.serve({
  port: 3000,
  fetch(request) {
    return new Response("Welcome to JSTime!");
  },
});

console.log(`Listening on localhost: ${server.port}`);