Worked on the nginxinc/nginx-gateway-fabric repository to address a critical networking issue affecting Kubernetes clusters operating in IPv6-only environments. Focused on updating the Nginx configuration to ensure the readiness probe endpoint, 'readyz', was accessible over both IPv4 and IPv6. This change prevented gateway pods from failing during startup by making the readiness check compatible with multi-stack deployments, thereby improving overall deployment reliability. Utilized Go and Go Template to implement and validate the fix, with all modifications traceable to a specific commit. The work demonstrated a strong understanding of Kubernetes networking and Nginx configuration in cloud-native infrastructure contexts.