Deploy React/Php Site on VPS

I already have the full codebase for a React.js front-end paired with a PHP back-end. What I need now is a smooth launch on my VPS.

Here is the current situation:
• Hosting: VPS (I can provide root and control-panel access).
• Access: Control-panel login is ready; SSH can be enabled if you prefer.
• Requirement level: I want the entire server stack configured from scratch—web server, database, SSL, environment variables, the works—so the site runs without errors and auto-starts on reboot.

Your tasks will include:
1. Configure the VPS (web server, PHP version, Node, database, firewalls, SSL).
2. Upload the React and PHP code, build the React front-end, and link it to the PHP API.
3. Point my domain, set DNS records, and verify HTTPS.
4. Test all routes and forms to be sure both front-end and back-end communicate correctly.
5. Provide a short hand-off note outlining what you changed and how to redeploy future updates.

Everything is ready on my side—just need your deployment expertise so the site goes live and stays stable.