Worked on the openmrs/openmrs-core repository, focusing on a targeted domain refactor to support project-wide adoption of JPA. The primary task involved migrating the VisitType domain from Hibernate XML mappings to JPA annotations, which improved code readability and maintainability while aligning with modern Java persistence practices. This change aimed to streamline onboarding for new contributors and ensure consistency across the codebase. The work leveraged Java, Hibernate, and JPA, emphasizing software architecture principles to remove legacy XML configurations. No bug fixes were reported during this period, with efforts concentrated on delivering this feature to enhance the maintainability of the VisitType domain.