Markus Wennrich worked on the metal-stack/metal-roles repository, focusing on infrastructure automation and image mirroring strategies over a two-month period. He implemented a compliance-oriented update to the OCI mirror configuration, restricting image sources to europe-docker.pkg.dev and removing deprecated sources to enhance security and maintainability. Markus also delivered NetApp Trident OCI mirror support, enabling streamlined deployment of storage drivers with semantic versioning and improved compatibility across environments. His work leveraged DevOps practices and Infrastructure as Code principles, primarily using YAML for configuration management. The changes addressed reproducibility and operational friction, reflecting a focused and methodical approach to infrastructure engineering.