Worked on the DivinumOfficium/divinum-officium repository to enhance infrastructure stability and improve EPUB generator language display. Updated the Dockerfile to adopt the latest Debian version, addressing security and compatibility concerns by moving away from an End-Of-Life release. Refined the epubgen2 script using Shell scripting to ensure the language option is correctly associated with the right-side display, clarifying user-facing behavior. Focused on DevOps practices and scripting to modernize the deployment baseline, improve maintainability, and support long-term readiness. Maintained clear traceability through detailed commits, delivering a safer and more robust environment without addressing major bugs during this period.