Alexander contributed a CI automation enhancement to the gchq/CyberChef repository, focusing on improving automated testing reliability. He developed and integrated a DETECT_CHROMEDRIVER_VERSION environment variable into the CI/CD pipeline, enabling automatic detection of the appropriate ChromeDriver version during installation. This approach, implemented using YAML and DevOps practices, addressed compatibility issues that often arise from mismatched driver versions in testing environments. By automating this aspect of the setup, Alexander reduced the fragility of the CI process and improved test stability. The work demonstrated a targeted, technical solution to a common DevOps challenge, with depth in CI/CD configuration and automation.