In April 2025, Matthias Fuessling focused on enhancing documentation within the gammapy/gammapy-meetings repository. He updated the LaLaguna 2025-04 README to accurately reflect the participant roster, specifically adding his own name to support onboarding and sprint coordination. Working exclusively with Markdown, Matthias applied his documentation skills to ensure project materials were current and accessible for new contributors. No codebase changes or bug fixes were required, as the work centered on improving clarity and readiness for the upcoming sprint. The update provided a streamlined onboarding experience, demonstrating careful attention to documentation quality and the practical needs of collaborative development.