Edmund Miller developed and optimized core features for several nf-core repositories, focusing on resource management, CI/CD workflows, and developer experience. He enhanced resource allocation in nf-core/configs by tuning memory and CPU settings for genomics workloads and Trim-Galore, reducing waste and improving throughput. In nf-core/modules, he introduced a self-hosted cleanup workflow using Docker and GitHub Actions to streamline CI processes. For nf-core/tools, he improved testing workflows with VS Code debugging support and clarified migration paths for test frameworks. His work, primarily in Python, YAML, and Dockerfile, demonstrated a strong grasp of configuration management and sustainable DevOps practices.