What are the key takeaways from “MERN Stack Разработка / #2 - Установка и настройка проекта” on Гоша Дударь?

What is this episode about?

This tutorial details the essential initialization and configuration of a Node.js web project using Express. It emphasizes modular code structure, environment variable management via the dotenv library, and effective API testing strategies using professional tools like Thunder Client instead of browser-only requests.