Local Node.js Site Setup

I have an existing GitHub repository for a dynamic site that runs on a Node.js backend. I use npm for dependency management. I need clear, step-by-step guidance—and, if required, a brief live troubleshooting session—so I can:

• clone or pull the repo,
• install all dependencies,
• set up any environment variables or config files,
• spin up the server locally without errors, and
• push changes back to my test environment.

A short written checklist or README update outlining the commands and settings you use will be the final deliverable. Familiarity with common Node.js tooling, npm scripts, environment handling, and Git workflows is essential.