The tutorial guides users through setting up an authentication system for an e-commerce website using Strapi, Nuxt.js, and Vuex. It begins with creating a Strapi project and installing necessary dependencies for the frontend, such as the Nuxt.js HTTP module. The process involves setting up a store to manage user information and sessions using Vuex and cookies, ensuring users remain logged in even after page reloads. The tutorial then details creating registration and login pages with form inputs for user credentials, using REST API calls for user actions like registration and login, and redirecting users upon successful authentication. A Header component is introduced to provide navigation links for logging in, registering, and logging out, as well as displaying a shopping cart dropdown. The tutorial concludes with integrating these components into the main layout and hints at future enhancements involving Stripe for the checkout process. Pierre, one of Strapi's creators, is mentioned as an advocate for open-source projects and enjoys windsurfing and mountain biking.