The tutorial outlines the process of creating custom plugins in Strapi, specifically focusing on implementing new data import methods beyond the existing file upload option. It introduces two new components, ExternalUrlForm and RawInputForm, designed to facilitate data import via external URLs and raw text input, respectively. Each component is equipped with functions to handle state updates and data analysis requests. The tutorial guides users through setting up these components, integrating them into the main application, and modifying the HomePage index.js file to accommodate the new import options. This allows users to choose between uploading files, inputting URLs, or pasting raw data for analysis. The tutorial is part of a larger series on plugin creation and acknowledges that some content might be outdated due to newer Strapi versions, inviting users to report discrepancies.