Oliver Copping modernized development workflows and stabilized CI pipelines across two open-source Python projects. For DiamondLightSource/python-copier-template, he refactored the environment setup to use uv-based dependency management, integrating native lockfile support and updating GitHub Actions workflows for faster, more reproducible builds. In bluesky/ophyd-async, Oliver focused on supporting Python 3.12 by updating CI configurations, synchronizing dependencies, and refining test logic to address compatibility issues, particularly with Tango tests. His work leveraged Python, YAML, and shell scripting, demonstrating depth in CI/CD, dependency management, and testing, and resulted in more robust, maintainable, and future-proof development environments for both repositories.