Guillaume Berche focused on improving user-facing documentation in the authzed/docs repository, addressing a critical issue that impacted community access. He identified and fixed a broken Discord invitation link, restoring reliable entry to the official support and discussion channel. Working primarily with Markdown, Guillaume applied strong documentation skills to validate the fix and ensure its persistence, reducing onboarding friction for new users. His approach emphasized version-control discipline, with clear commit messages and traceability for future audits. While the scope of work was limited to a single bug fix, the solution directly enhanced documentation accessibility and supported ongoing community engagement for authzed.