Andrea Bressan focused on enhancing codebase quality and documentation within the gismo/gismo repository during February 2025. Concentrating on C++ code, Andrea applied code refactoring and documentation skills to clean up header files, particularly gsTHBSpline.h, addressing typographical errors and improving clarity in comments and documentation strings. The work did not introduce new features or alter functionality but instead targeted non-functional aspects to improve readability and maintainability. By ensuring consistency and professionalism in documentation, Andrea’s contributions supported better onboarding and reduced the risk of misinterpretation, reflecting a methodical approach to long-term code health and collaborative development practices.