Worked on improving configuration reliability and documentation clarity across the biomejs/website and withastro/astro repositories. Updated Biome documentation to reference schema version 2.3.13, ensuring users access the latest configuration guidelines in multiple languages. Addressed a configuration validation issue in Astro by making the 'integrations' field optional and defaulting to existing integration settings, aligning with newer Zod validation logic to reduce user errors. Utilized TypeScript, JSON, and Zod validation to manage schema updates and documentation changes. The work focused on streamlining onboarding and minimizing configuration mistakes by keeping validation logic and documentation in sync with evolving tooling standards.