$> npm init -y
$> npm install express
$> npm install ejs
$> npm install mongoose
$> npm install dotenv
$> npm install bcryptjs
$> npm i passport express-flash
$> npm i express-session
$> npm i method-override
$> npm i passport-local
SESSION_SECRET=abc123
PORT=3000
HOST=127.0.0.1
$> npm start