Manuel Castellin developed and enhanced CI/CD automation for two repositories, ogcio/life-events and ogcio/govie-services-profile, focusing on build reliability and maintainability. He implemented nightly OpenShift self-hosted agent builds for ogcio/life-events, automating scheduled build operations and streamlining the pipeline within a self-hosted OpenShift environment. For ogcio/govie-services-profile, he standardized the Chrome version in CI pipelines by introducing a CHROME_VERSION environment variable, improving build reproducibility and environment parity. His work leveraged Shell scripting, YAML configuration, and DevOps practices to centralize agent and version management, resulting in clearer ownership and traceability of CI configuration across both codebases.