Guide to Start (without this repo)

1. Init your node.js project

mkdir <Folder Name>
cd <Folder Name>
npm init -y

2. Install package that need on your project (if having more you can install it later)

npm i express dotenv nodemon

3. Setting up Startup Script

{
  ...,
  "scripts": {
    "start": "node app.js",
    "dev": "npx nodemon app.js"
  },
  ...
}

4. Create file name app.js in root of your project