marimo

marimo is an open-source reactive Python notebook designed as a modern alternative to Jupyter, with automatic dependency tracking and Git-friendly .py file storage instead of JSON. It executes reactively like a spreadsheet, determining cell order by variable dependencies rather than position, preventing bugs through its declarative design. Notebooks run as read-only scripts, interactive apps, or static WASM-based web applications without requiring a server. marimo includes built-in UI elements (sliders, tables, forms), SQL query support, plotting integration, and state management for interactive dashboards. It's ideal for data analysts, researchers, and developers building reproducible Python programs that collaborate well with version control and CI/CD workflows.

Install using pip or the provided npx command to add it as a skill.