During the review period, contributed to the Jfranbm04/racehub and Jfranccbm04/racehub repositories by building and enhancing event and participant management systems for trail running and cycling. Focused on backend development using PHP and Symfony, the work included refactoring authentication workflows to improve JSON decoding reliability and updating database handling for participant edits. Developed new event creation and management features, introducing robust form handling and administrative interfaces with enhanced status displays and gender selection. Applied skills in API development, HTML, and CSS to ensure scalable workflows, data integrity, and improved user experience across both frontend and backend components of the projects.