During February 2025, work centered on enhancing the quality and clarity of documentation within the gismo/gismo repository. Focusing on C++ code, the developer undertook a thorough review and cleanup of header files, particularly gsTHBSpline.h, to correct typographical errors and improve comment consistency. No user-facing features were introduced, and all changes were non-functional, targeting only documentation and code comments. This approach emphasized code refactoring and documentation skills, ensuring that the codebase remained stable and readable. The improvements support better onboarding for new contributors and help prevent misinterpretations, contributing to the long-term maintainability of the project.