Worked on stabilizing and hardening CI/CD pipelines for the greenbone/actions and greenbone/workflows repositories by introducing deterministic builds and improving reproducibility. Leveraged YAML and GitHub Actions to pin workflow files and dependencies to exact commit hashes, ensuring that builds remained consistent across runs. Enhanced documentation by updating the version-pin policy, which improved auditability and made issue diagnosis more efficient. Focused on dependency management to align all references to immutable versions, reducing the occurrence of flaky tests and unreliable deployments. Established a uniform approach to version pinning across both repositories, resulting in faster troubleshooting and more reliable CI/CD processes overall.