Contributed to the 89luca89/distrobox repository by updating Fedora Toolbox compatibility documentation, ensuring Fedora 41 was accurately reflected in both general and Toolbox-specific compatibility lists. This work improved clarity for Fedora users adopting containerized workflows. Later, in the AOSC-Dev/aosc-os-abbs repository, addressed authentication reliability in container environments by adjusting resource limits and relocating configuration files, enhancing login success across systemd-nspawn, LXC, Docker, and Podman. Upgraded the linux-pam library to version 1.7.2 and refined build automation by disabling fatal GCC Guarded Control Stack warnings. Utilized C, Shell scripting, and Linux administration skills to deliver maintainable, security-focused improvements.