npm init -y
npm install express myapp
npm install nodemon --save-dev  //auto deploy

To connect to a Postgres database, we need to install the pg package, which is the official PostgreSQL client for Node.js. Open your terminal and run the following command:
$ npm install pg
or
npm install -g nodemon
nodemon server.js


start postgresql

C:\Users>
pg_ctl start -D "C:\Program Files\PostgreSQL\16\data" 


npm install dotenv