github-code Web Component

Simon Willison has released an experimental web component called github-code that lets developers embed code snippets directly from GitHub repositories. The component takes a GitHub URL pointing to a specific file and optional line range, fetches the raw content via the fetch() API, and displays the requested lines with line numbers. The component was built using GPT-5.5 based on a prompt, emphasizing the role of AI in prototyping even small developer tools. Notably, it does not include syntax highlighting, which may limit its use for polished documentation but keeps it lightweight. For developers building AI workflows or technical blogs, this component offers a way to ensure code examples are always up-to-date by linking to the live repository rather than copying static snippets. However, the lack of styling and reliance on raw.githubusercontent.com might require additional customization for production use. The project is currently a proof-of-concept, but it demonstrates how AI-assisted development can quickly produce functional components for common developer needs.