Python notebooks have been the standard for data science due to their ease of use in coding, data exploration, and result sharing, but they face challenges in collaboration, reproducibility, and deployment at scale. Cloudflare has partnered with marimo, an open-source reactive Python notebook, to address these limitations, offering features like Git tracking, standalone script execution, and deployment as data applications. Marimo's reactive execution model enhances consistency and speed, allowing notebooks to run in various environments, including the browser via WebAssembly, reducing sharing costs. Additionally, Cloudflare has integrated authentication and examples to streamline data exploration, while marimo supports multiple data sources and offers seamless OAuth authentication. The collaboration aims to empower developers and data scientists to conduct large-scale analyses and batch jobs, leveraging Cloudflare's infrastructure and marimo's capabilities.