Uliana Dmitrieva developed a ZDC Spectator Plane Q-vector Centroid Producer for the AliceO2Group/O2Physics repository, focusing on enhancing data analysis capabilities in physics simulation. She refactored the existing ZDCInterCalibTask by renaming it to ZdcExtraTableProducer and expanded its functionality to calculate and store ZDC Q-vectors (centroids) alongside existing data. Using C++ and CMake, Uliana improved the maintainability and naming consistency of ZDC-related code, which reduces future refactor risk. Her work increased the accessibility of spectator plane measurement data for downstream analyses, demonstrating a thoughtful approach to both technical implementation and long-term codebase organization.