Andrew Hosgood worked on stabilizing the deployment workflow for the nationalarchives/ds-infrastructure-web repository, focusing on improving CI/CD reliability. He addressed a bug in the GitHub Actions pipeline by correcting the branch comparison logic, ensuring that staging changes are accurately compared against production. Using YAML to update workflow configuration, Andrew resolved a syntax error that previously risked mis-deployments. His changes increased the reliability and maintainability of the deployment process, providing clearer traceability for future modifications. Although the work was limited to a single bug fix over one month, it demonstrated careful attention to deployment safety and process integrity within the CI/CD pipeline.