Kai contributed to the Staffbase/gha-workflows repository by implementing architecture-aware Docker builds, enabling ARM (linux/arm64) support and enforcing single-platform deployments. Using YAML and Markdown, Kai introduced input parameters for architecture selection and updated documentation to guide users through the new options. The work included refactoring GitHub Actions workflows to simplify runner architecture variables and clarify job naming, which improved maintainability and reduced confusion. By removing redundant tests and aligning the CI process with a single-architecture policy, Kai enhanced workflow reliability. The updates laid the foundation for future multi-architecture support while ensuring current builds remain clear, consistent, and well-documented.