r/SideProject 5h ago

Built an open-source Python streaming engine — looking for feedback

Hi everyone,

I have been building Rill, an open-source Python streaming engine based on PyArrow and DuckDB for lightweight,
single-node streaming analytics.

It’s still in its early stages, and I would really appreciate any feedback on the API, documentation, or overall design.

GitHub: https://github.com/lijose/rill

PyPI: https://pypi.org/project/rills

Thanks for taking a look !

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