During December 2024, William Vela focused on enhancing resource lifecycle management and robustness in the aws/aws-k8s-tester repository. He implemented and later reverted a feature to set DeleteOnTermination for Elastic Network Interfaces in unmanaged-nodegroup-efa.yaml, aiming to improve EC2 resource cleanup. Additionally, he addressed potential nil pointer exceptions in the Go-based writeKubeconfig function by introducing, then removing, a nil check for absent cluster resources. His work demonstrated careful experimentation with infrastructure as code using Go and YAML, maintaining clear traceability of changes and decisions to inform future strategies for deployment stability and risk management in cloud-native environments.