Worked on the withastro/starlight repository to enhance documentation accuracy and package extensibility. Addressed a documentation issue by correcting the Icons import in multi-language examples, ensuring consistency and clarity for developers referencing Markdown-based guides. Introduced a new export, SidebarPersister, to the package, enabling users to implement custom persistence strategies and improving the flexibility of the API. Focused on documentation and package management skills, the work reduced onboarding friction and support overhead while supporting advanced customization for performance-oriented applications. The contributions demonstrated attention to detail and a practical approach to improving both the developer experience and the maintainability of the codebase.