Worked on enhancing the migration experience for users of the Financial-Times/dotcom-tool-kit repository by focusing on documentation and configuration guidance rather than direct code changes. Improved the Migration Guide v4 with detailed troubleshooting steps, clarified package update commands, and addressed configuration nuances in the CircleCI plugin. Documented the renaming of nodeVersion to cimgNodeVersions, including validation caveats to help prevent build failures during CI/CD processes. Utilized Markdown for clear technical writing and collaborated across teams to ensure guidance reduced post-migration issues and support load. The work emphasized documentation skills and a deep understanding of continuous integration environments and configuration management.