This tutorial guides the creation of files and their commitment to a GitHub repository using Octokit and TypeScript. To get started, one needs to install Octokit via npm, create a TypeScript entry point with an instance of the Octokit client, and replace placeholders with actual credentials for authentication. The process involves generating a tree by retrieving the latest commits, adding files to the tree in a specific format, constructing the tree, committing the files, and pushing the commit to the repository. This approach allows developers to easily manage automatically generated or frequently changing files in their repositories.