Hamza Amar contributed targeted configuration and reconstruction enhancements to the DUNE/dunereco and DUNE/dunesw repositories, focusing on low-energy event clustering and detector geometry fidelity. He introduced new FCL-based parameters and cluster definitions to improve low-energy physics reconstruction, and developed MUSUN generator configurations to expand simulation coverage for specific VD geometries. Hamza also updated detector service configurations to ensure correct alignment with the 1x8x14 geometry, addressing simulation reliability. His work included a careful adjustment and subsequent rollback of the opflash10ppm reconstruction workflow, demonstrating attention to deployment stability. These efforts reflect depth in configuration management and simulation setup using FCL.