PyO3

polarspola-rs/polars

An extremely fast query engine for DataFrames, written in Rust, with multi-language frontends.

nautilus_tradernautechsystems/nautilus_trader

A production-grade Rust-native trading engine with deterministic event-driven architecture for multi-asset, multi-venue systems.

grexpemistahl/grex

A command-line tool and library that generates regular expressions from user-provided test cases.

vtracervisioncortex/vtracer

An open-source raster to vector graphics converter that efficiently transforms images into compact SVG files.

harmonyopenai/harmony

A renderer and parser for the harmony response format used with OpenAI's gpt-oss open-weight models.

rustworkxQiskit/rustworkx

A high-performance Python graph library implemented in Rust for general-purpose graph algorithms.