uv + marimo lets you run Python notebooks in a sandboxed environment. This increases reproducibility and helps prevent environment pollution. If your notebook

uv + marimo lets you run Python notebooks in a sandboxed environment. This increases reproducibility and helps prevent environment pollution. If your notebook has inline script metadata, marimo will automatically install the enumerated packages before running the notebook; if it doesn't, marimo will prompt you to install the missing packages on notebook startup.