The tutorial outlines the process of building a bookmarking app using React, styled with Tailwind CSS, and a backend developed with Strapi, a Node.js-based open-source headless content management system (CMS). It begins by explaining the concept of a headless CMS, which provides only a backend, allowing developers to build the frontend separately. The tutorial guides users through creating and managing API endpoints with Strapi, which can be accessed by various clients like mobile or web apps. It then covers setting up a React app, configuring Tailwind CSS for styling without traditional CSS files, and developing components like BookmarkCard and AddBookmarkDialog for functionalities such as adding, editing, viewing, and deleting bookmarks. The app is designed to allow public access to bookmark endpoints, and the tutorial emphasizes the ease and efficiency of using Tailwind CSS, highlighting the absence of custom CSS code in the project's development.