During March 2026, Baptiste Perreyon focused on backend development for the powsybl-open-loadflow repository, addressing a critical bug affecting AC-DC generator target power updates in hybrid network simulations. He implemented a targeted fix in Java, ensuring that generator target power values update accurately within AC-DC networks. To enhance reliability, Baptiste improved listener management for network elements, preventing stale events and reducing the risk of regressions during network model updates. His work included thorough unit testing and clear commit documentation, contributing to more dependable load-flow simulations. This effort improved the accuracy and maintainability of AC-DC network modeling used in operational planning.