Nicolo Antonelli contributed to the KratosMultiphysics/Kratos repository by delivering a feature focused on cleaning up deprecated SBM variable usage and enhancing documentation for shifted boundary conditions. He refactored C++ code to remove the obsolete IS_SBM variable and clarified the TShiftedBoundary template parameter in BrepCurveOnSurface and BrepSurface, improving code readability and maintainability. His work included targeted updates to variable.h and variable.cpp, reducing the risk of misconfiguration and easing future maintenance. By providing detailed software documentation and explanatory comments, Nicolo improved onboarding for developers working with geometry and C++ development in the context of SBM handling.