Maxence Thevenet focused on enhancing the stability and accuracy of Gaussian laser initialization in the EZoni/WarpX repository, addressing a critical bug affecting stretch factor calculations under spatial and angular chirp conditions. By reverting a previous modification, Maxence restored correct initialization behavior while maintaining the performance benefits of single-precision arithmetic. The work involved deep debugging and code refactoring in C++, applying numerical methods and physics simulation expertise to reduce initialization errors and improve simulation reliability. Although no new features were released during this period, the targeted fix demonstrated careful attention to code robustness and traceability within a complex scientific codebase.