Knock has open-sourced its documentation under an MIT license to encourage community contributions and improve the developer experience by allowing users to enhance the documentation directly rather than filing support tickets. The documentation site, available on GitHub, was custom-built from the start using technologies like MDX for content, Tailwind for styling, and Algolia for search, with the aim of maintaining flexibility and a high-quality user experience. The site has been developed over two years, incorporating various features such as API sections, CLI introductions, new integrations, and a dark mode, while maintaining a static foundation. Challenges like implementing multi-language code samples were addressed with a simple approach, and future improvements include adding mobile navigation, code-splitting for loading efficiency, and restructuring the API reference for better linkability. The project serves as a potential model for others looking to build their own documentation sites, offering insights through its open-source code and inviting contributions for further refinement.