During 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 a new contributor to support onboarding and sprint coordination. Working exclusively with Markdown, Matthias applied his documentation skills to ensure project materials were current and accessible, facilitating smoother collaboration for the upcoming coding sprint. No codebase changes or bug fixes were required, as the work centered on improving the clarity and accuracy of project documentation. The update provided a targeted solution to maintain transparency and readiness for team activities.