Koen de Laat contributed to backend and DevOps engineering for the rancher/rke2-charts and zarf-dev/zarf repositories over a two-month period. He upgraded the CNI plugin in rke2-charts, aligning chart manifests and versioning with the latest networking components to ensure stability and compatibility. In zarf, he addressed cross-platform deployment issues by refining Windows PowerShell environment variable substitution in automation scripts, converting constants to the appropriate $Env: syntax. His work involved Go, YAML, and shell scripting, demonstrating a focus on configuration management, cross-platform compatibility, and robust testing. Koen’s contributions addressed targeted stability and automation challenges in deployment workflows.