Chandradoy Chatterjee focused on enhancing physics accuracy in detector simulations by correcting aerogel refractive indices in the eic/EICrecon and eic/epic repositories. Working in C++ and leveraging expertise in detector physics and simulation configuration, Chandradoy implemented non-breaking updates that improved consistency between simulated and experimental data, particularly for reconstructed Cherenkov angles. The work included updating default values, maintaining backward compatibility, and providing clear documentation and migration guidance to collaborators. By coordinating cross-repository communication and ensuring adoption of the changes, Chandradoy enabled more reliable particle identification and reproducible physics analyses, demonstrating depth in both technical implementation and collaborative engineering practices.