During April 2025, this developer focused on stabilizing container deployment for the DivinumOfficium/divinum-officium repository, addressing permission issues on SELinux-enabled environments. By updating the docker-compose.yml configuration to include SELinux-aware volume mounts using the :Z relabeling option, they ensured that Docker containers received correct file labeling, which reduced permission-denied runtime errors. This solution was implemented using YAML and leveraged skills in DevOps, Docker, and SELinux. The approach maintained compatibility across different platforms, improving deployment reliability in development, CI, and production environments while minimizing support overhead related to container permissions. No new features were added during this period.