The tutorial provides a comprehensive guide on how to build an ecommerce store using Medusa, an open source node.js ecommerce platform, and Contentful, a headless CMS solution. With this integration, developers can create rich ecommerce pages with full control over content management, product details, and advanced features like local pricing and gift-carding. The tutorial covers setting up the Medusa server, configuring the environment variables, connecting to Contentful, migrating data models, seeding initial data, and running the Medusa server. Additionally, it explains how to set up a Gatsby storefront that connects to the Medusa server, making it possible for customers to browse products and make purchases. The tutorial also highlights the benefits of using a headless commerce solution like Medusa, including abstraction level, open source nature, and decoupling of frontend from backend. It provides developers with freedom in choosing their preferred stack, integrating any payment provider or CMS solution, and customizing the ecommerce store to meet specific use cases.