Learn to create a VSCode extension in this comprehensive tutorial. Explore extension boilerplate, custom commands, and webviews using vanilla JavaScript and Svelte. Dive into sidebar development, Svelte basics, and message posting. Build an Express.js API with TypeORM, implement GitHub OAuth, and handle token management in VSCode. Master Todo CRUD operations, webview state persistence, and Express request typing. Access provided code and resources to enhance your learning experience.