nero-env

What is nero-env?

nero-env is a CLI tool for validating and comparing .env files against .env.example. It helps catch missing, empty, and unused environment variables early.

Installation

Install globally using npm:

npm install -g nero-env

Basic Usage

Run in your project directory:

nero-env

This will check for .env and .env.example files in the current directory.

Check a Specific Project

Specify a custom path:

nero-env --path ./apps/api

What it checks

• Missing variables → defined in .env.example but not in .env
• Empty values → defined in .env but has no value assigned
• Unused variables → present in .env but not declared in .env.example

Output clearly shows which file needs fixing.