Michael Gutbier enhanced the codecentric/c4-genai-suite repository by delivering security-focused improvements to the REIS Helm chart. He expanded embedding provider support to include Bedrock, NVIDIA, and Ollama, updating configuration files, secrets, and documentation to ensure seamless integration. Using Kubernetes, Helm, and YAML, Michael restructured credential management by moving AWS access keys into Kubernetes Secrets, reducing operational risk and improving deployment reliability. He also addressed a TLS misconfiguration, making Ingress TLS optional and aligning it with cluster requirements. His work demonstrated depth in cloud configuration and DevOps practices, resulting in more flexible, secure, and maintainable multi-provider deployments.