Rafael Sarmiento developed two core features focused on enhancing JupyterLab usability and deployment within the eth-cscs/alps-uenv and eth-cscs/cscs-docs repositories. He integrated the NVIDIA Dashboard into JupyterLab by updating requirements, post-install scripts, and deployment configurations, ensuring compatibility across environments. In parallel, Rafael expanded JupyterLab documentation, covering setup, debugging, file system integration, and MPI usage, while improving navigation for easier access. His work leveraged skills in DevOps, environment management, and package management, using Shell, YAML, and Markdown. The deliverables were well-scoped, traceable to specific commits, and improved both developer productivity and deployment reproducibility without introducing regressions.