Worked on robustness and security improvements across two repositories, focusing on defensive programming and secure deployment practices. In pyOpenSci/python-package-guide, addressed CI reliability by enhancing the translation statistics generation process with Python, adding checks to ensure output directories exist and gracefully handling missing .po files or build errors. In nextcloud/all-in-one, applied containerization and DevOps skills to reduce privileged access by running the session-deduplicator as www-data instead of root, aligning with security best practices. These targeted bug fixes improved reliability and security posture, demonstrating careful privilege management and a methodical approach to maintaining back end systems in containerized environments.