Prerequisites: Node.js, npm.
Once those who are installed, go to the product folder and type npm i to install the packages required.
Once necessary packages are installed, run node index.js in the product folder to run the server. On first run, you should run it multiple times as it copies the .env.template and .env and creates a database.db file.
If the process execution doesn't stop and the console doesn't have any errors, you can access the system on default port 3000. Go to the browser and write 127.0.0.1:3000 or localhost:3000\