Adrien focused on reliability and infrastructure stability across the huggingface_hub and huggingface/chat-ui repositories, addressing critical post-migration and deployment challenges. In huggingface_hub, Adrien updated Python-based tests to align with new LFS redirection domains following the XET migration, ensuring CI pipelines remained accurate and resilient to backend changes. For huggingface/chat-ui, Adrien improved deployment hygiene by refining YAML configuration, specifically removing the group.order annotation from prod.yaml to prevent group-order conflicts and reduce deployment risk. Throughout both projects, Adrien applied skills in CI/CD, DevOps, and infrastructure management, delivering targeted bug fixes that enhanced maintainability without introducing new features.