Tomi Nykanen focused on maintaining stability and compatibility for the CSCfi/csc-user-guide repository during December 2025. He addressed a critical maintenance need by updating Python library dependencies to ensure seamless integration with the OpenStack Xena release. This work involved careful Python library management and thorough documentation to prevent runtime issues and maintain reliability across deployment environments. Although no new features were introduced, Tomi’s targeted update resolved a key compatibility bug, supporting traceability and maintainability through a single, auditable commit. His approach demonstrated depth in dependency management and a strong understanding of OpenStack and Python, emphasizing long-term project stability.