Jhan Srbinovsky worked on the ACCESS-NRI/ACCESS-ESM1.6 repository, focusing on improving dependency management and configuration stability. He updated the spack.yaml file to lock in the latest development versions of access-esm1p6 and um7, ensuring the project could benefit from upstream bug fixes and new features. By implementing reproducible builds and carefully managing lock entries, Jhan reduced environment drift and prepared the codebase for smoother CI validation. His work, primarily using YAML and leveraging skills in configuration and dependency management, addressed the need for consistent builds and positioned the project for greater stability in production environments.