In which technology stacks have you had the most experience?

My most extensive experience is with the following technology stacks:

• Node.js with Express for creating REST APIs
• MongoDB as the database
• React for the frontend (in projects with Node.js)
• Using TypeScript for typing

Example of a simple server on Node.js with Express:

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

app.get('/', (req, res) => {
  res.send('Hello World!');
});

app.listen(3000, () => {
  console.log('Server is running on port 3000');
});