Developed and delivered a Lichess integration for ha-core, adding support for puzzle games and ratings to enhance user engagement and analytics. Focused on backend development and API integration, the work enabled puzzle-based discovery and scoring by modeling new data pathways for puzzle content and ratings. The implementation, written in Python and leveraging JSON for data handling, emphasized maintainability through unit testing and collaborative code review. No major bugs were addressed during this period, but ongoing refactoring improved stability. This feature strengthened cross-service integration patterns within the repository, supporting richer analytics and retention for users interacting with Lichess puzzle content.