Alan Hoskins updated the documentation for the highlight/highlight repository to support the migration to the Next.js app router, focusing on aligning onboarding materials with the new app directory structure. He revised Markdown-based guides to ensure users could correctly configure analytics and performance instrumentation under the updated framework conventions. By replacing outdated references to the ‘pages’ directory with the new ‘app’ directory, Alan reduced confusion for developers transitioning to the latest Next.js patterns. His work emphasized clarity and accuracy in documentation, leveraging his skills in technical writing and Markdown to keep the repository’s guidance in sync with ongoing codebase changes.