Worked on the NUbots/NUbots repository to enhance the CI build process by introducing automated detection and management of unused modules. Leveraging Python scripting and YAML configuration, the developer refactored the existing unused.py script to generate a comprehensive unused.role file prior to the main build. This approach improved code organization and maintainability by surfacing unused modules early in the CI pipeline, reducing build waste and accelerating feedback cycles. The work focused on build systems and CI/CD practices, enabling faster iteration and deployment readiness while streamlining module management within the codebase. No bugs were fixed during this period, with efforts centered on feature delivery.