During April 2025, Cristian Vijdea focused on improving cross-platform build reliability for the Esri/zlib-ng repository. He addressed a FreeBSD-specific issue by refining the build system configuration, ensuring that POSIX and C11 standards were properly defined during try_compile checks. This adjustment prevented incorrect HAVE_ALIGNED_ALLOC definitions, resulting in more accurate and predictable build configurations. Working primarily with C++ and shell scripting, Cristian demonstrated expertise in cross-platform development and build system management. His targeted bug fix enhanced CI reliability and reduced maintenance overhead, reflecting a deep understanding of platform-specific build environments and standards compliance within complex open-source projects.