In this tutorial, we'll be building an invoicing app using Next.js for the frontend development, Strapi as the backend content management system, and jsPDF for PDF generation. We'll create a functional invoicing app where users can create, edit, and delete invoices on the frontend while managing the data on the Strapi backend. First, we'll set up our development environment by installing Next.js, Strapi, and jsPDF libraries. Then, we'll configure the Strapi backend to store the invoice data. After that, we'll connect the Strapi backend to the frontend using axios library. We'll implement CRUD operations in Strapi for creating, reading, updating, and deleting invoices. Finally, we'll integrate PDF generation functionality into our app using jsPDF library. By the end of this tutorial, you should have a functional invoicing app where users can create, edit, and delete invoices on the frontend while managing the data on the Strapi backend. You'll also be able to download the invoice in a PDF format.