MERN E-commerce Environment Variables

The video tutorial explains how to set up environment variables using the dot ENV package. It covers installing and configuring dot ENV, creating a .env file, and using environment variables in server.js. The tutorial emphasizes the importance of securing the .env file by adding it to .gitignore to prevent exposing sensitive information. Additionally, it discusses transitioning from CommonJS to ES modules for a consistent module system across frontend and backend.

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