During June 2025, Stef contributed to the hibernate/hibernate-orm repository by focusing on maintenance and code quality within the metamodel-generation pipeline. Stef addressed a formatting issue in TypeUtils.java, applying targeted code formatting improvements without altering functionality. This work, performed in Java and leveraging skills in code formatting and metamodel generation, enhanced the readability and maintainability of the metamodel-generator tooling. By reducing technical debt and aligning the codebase with established standards, Stef’s changes support safer and more efficient future enhancements. The depth of work reflects a careful approach to long-term tooling reliability, prioritizing maintainability over new feature development during this period.