npm environment variables: https://remarkablemark.org/blog/2020/06/07/npm-environment-variables/

.env

NAME=$npm_package_name
VERSION=${npm_package_version}

README.md

Example of npm environment variables loaded in a Node.js module.

Install

Clone repository:

git clone https://gist.github.com/57a43183decf58b6213e22f166b040f1.git npm-env-vars
cd npm-env-vars

Install dependencies:

npm install

Run

See npm environment variables:

npm start

index.js

const dotenv = require('dotenv');
const dotenvExpand = require('dotenv-expand');

dotenvExpand(dotenv.config());

console.log(process.env.NAME, process.env.VERSION);

package.json

{
  "name": "package-name",
  "version": "1.2.3",
  "scripts": {
    "start": "node index.js"
  },
  "dependencies": {
    "dotenv": "^8.2.0",
    "dotenv-expand": "^5.1.0"
  }
}