During November 2024, J.C.A. worked on the PowerShell/openssh-portable repository, focusing on enhancing system security and stability through targeted bug fixes in C. Addressing a memory-safety issue, J.C.A. implemented a fix to the getgrouplist function, ensuring it no longer reads past the allocated buffer when users belong to more groups than the system maximum. This required updating group access logic to safely handle large group memberships and prevent buffer overflows, as well as documenting the new behavior and memory safety considerations. The patch was submitted upstream, with careful attention to CI compatibility, demonstrating depth in system programming and security.