The tutorial outlines how to use Strapi as a central hub for managing and automatically publishing blog content across multiple platforms such as Dev.to, Medium, and Hashnode. It explains the process of creating a Strapi project, setting up a content type for blog posts, and configuring webhooks to trigger a serverless function hosted on AWS Lambda. This function handles API calls to the respective platforms, utilizing REST APIs for Dev.to and Medium, and a GraphQL API for Hashnode, to create and update posts. The guide emphasizes the efficiency of having a single source of truth for content management, thus reducing manual work and ensuring synchronization across platforms. It also highlights the necessity of adding more fields to the blog content type and enabling webhooks for content updates and deletions to accommodate more complex real-world scenarios.