Strapi, an open-source headless CMS, is used to build a blog with Jekyll as the frontend, showcasing how to enhance functionality with plugins from the Strapi Market. The tutorial demonstrates using three plugins: the SEO plugin to optimize content for search engines, the Internationalization (i18n) plugin to manage content in multiple languages, and the Comments plugin for moderating blog comments. Strapi provides a customizable API that can be integrated with various frontends, including mobile apps and IoT devices. The tutorial guides users through setting up a Strapi backend, creating and managing content types, linking posts to users, and generating dynamic slugs. It also covers setting up Cloudinary for media management, enhancing the blog's performance by offloading image handling to a CDN. The tutorial concludes with suggestions for deploying the blog on a production server and encourages exploring additional plugins from the Strapi Market.