During June 2025, Joseph Kumwenda focused on enhancing the reliability and maintainability of the UCL/TLOmodel repository. He implemented a targeted refactor in Python to centralize resource path handling within simulation modules, ensuring that resource file paths were correctly propagated from the Simulation constructor to all dependent components. This approach standardized resource access, reducing the risk of runtime errors and improving the stability of continuous integration workflows. By emphasizing code maintenance, refactoring, and software architecture, Joseph’s work addressed a persistent bug, improved the testability of resource-loading logic, and established a more robust foundation for future development and feature expansion.