📚 Let's discuss .env management in Express.js.

[peppapig13132]

I would like to discuss .env management for Express.js backend development in package.json.
Used node modules: corss-env, dotenv

# package.json
... ... ...
"scripts": {
  "test": "echo \"Error: no test specified\" && exit 1",
  "start": "cross-env NODE_ENV=development ts-node src/index.ts",
  "start:dev": "cross-env NODE_ENV=development nodemon",
  "build": "tsc",
  "serve:dev": "cross-env NODE_ENV=development node dist/index.js",
  "serve:prod": "cross-env NODE_ENV=production node dist/index.js"
},
... ... ...