During March 2025, Andre Caldas enhanced code hygiene in the gismo/gismo repository by focusing on namespace management within C++ code. He delivered a targeted feature that removed the 'using namespace gismo;' directive from a header file, thereby preventing implicit exposure of the gismo namespace across dependent files. This approach required explicit namespace qualification, which reduces the risk of naming conflicts and encourages safer API usage. Andre applied his skills in C++, software design, and namespace management to improve code organization. The work demonstrated a focused, incremental improvement that addressed a specific maintainability concern rather than broad architectural changes or bug fixes.