During May 2025, John contributed to the john0312/hitcon-pcb-badge repository by enhancing the leaderboard functionality through a refined data model and improved test automation. He extended the ScoreEntry schema to capture both per-game and total scores, enabling more accurate and flexible leaderboard rankings. Using Python, John focused on backend development and data modeling, optimizing the fake client to support updated API endpoints and better environment variable management. His work also introduced new utilities for fetching and posting scores, which increased test coverage and reliability. The depth of these changes strengthened scoring accuracy and stabilized the project’s quality assurance processes.