Installation

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System Requirements

Before installing env-twin, ensure your system meets the following requirements:

env-twin uses only built-in Node.js modules with zero external dependencies, making it lightweight and fast.

Install env-twin as a development dependency using your preferred package manager:

npm install --save-dev env-twin

We recommend installing env-twin as a dev dependency since it’s primarily used during development and CI/CD workflows.

After installation, verify that env-twin is correctly installed by checking the version:

npx env-twin --version

You should see output similar to:

env-twin version 1.1.1

While not recommended for project-specific use, you can install env-twin globally:

npm install -g env-twin

Global installation may lead to version conflicts across projects. We recommend per-project installation for consistency.

Now that you have env-twin installed, you’re ready to:

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