Andres worked on stabilizing the continuous integration process for the spacemeshos/go-spacemesh repository by addressing test environment determinism. He delivered a feature that pins the Kubernetes node version used in the system test nodepool within GitHub Actions workflows, removing reliance on the latest available version. This approach, implemented using YAML and leveraging CI/CD and DevOps practices, reduced flakiness in automated tests and improved reproducibility of results. By eliminating version drift in the test environment, Andres enhanced the reliability of feedback loops for developers. The work demonstrated a focused, infrastructure-oriented contribution that improved the quality and stability of the CI pipeline.