Developed single-node deployment support for OpenSearch within the Panfactum/stack repository by extending the existing kube_opensearch Terraform module. The work involved modifying cluster configuration logic to dynamically adjust settings based on the replica_count parameter, enabling efficient single-node operation when appropriate. By removing the previous validation that enforced a minimum of three replicas, the solution allowed for more flexible and cost-effective deployment options, particularly suited for development and testing environments. The implementation maintained clear change traceability through focused commits, supporting future enhancements and code reviews. Key technologies utilized included AWS, Kubernetes, and Terraform, with configuration defined using HCL.