The tutorial provides a comprehensive guide on integrating Nuxt.js with Strapi to implement content previews in a JamStack environment. It begins by introducing the concept of static site generation, highlighting its benefits and limitations, such as the lack of server-side rendering and content previews. The guide then outlines the steps to set up a Strapi project and a Nuxt.js application, focusing on enabling Nuxt preview mode. This involves creating and configuring specific files and scripts to allow client-side JavaScript to dynamically fetch content from the Strapi backend. The tutorial details how to create content collections in Strapi and manage post data, ensuring that the Nuxt application can retrieve and display this content effectively. It also addresses permissions settings within Strapi to facilitate API access and demonstrates how to implement, test, and manage content preview functionality using Nuxt's static generation capabilities. This integration is particularly useful for developers looking to streamline content updates and previews in a static site context, leveraging the strengths of both Strapi and Nuxt.js for efficient content management and display.