After unzipping the file - Open the folder in VS Code - Install Node Js on your computer depending on the operating system you have - Install Git only if on windows - If on Linux install git and npm too - Now open the terminal or CMD and go to the folder of the project - Run "npm install" command - Once complete run "npm start" to run the app - To test out paypal, you need to go to developers.paypal and create a sandox account. - After creating it, copy the client id - Open the Public folder, and open index.html - Paste the foloowing script there <script src="https://www.paypal.com/sdk/js?client-id="></script> - Place your client id after the equals sine. - It will now work well - If you will need to do a real project, create a live account