Worked on the se-sic/vara-feature repository to enhance the reliability and security of the CI/CD pipeline by focusing on dependency hygiene and workflow improvements. Updated subproject dependencies, specifically csv-parser and z3, to newer commits without introducing functional code changes, ensuring continued compatibility and maintainability. Refined GitHub Actions workflows by upgrading action versions such as checkout, peaceiris/actions-gh-pages, and setup-python, and refreshed pre-commit actions to strengthen deployment traceability. Leveraged skills in CI/CD and GitHub Actions, primarily using YAML, to deliver safer and faster releases. The work emphasized stability and security, with no new bugs introduced or fixed.