Fyn: An uv fork with new features, bug fixes, stripped telemetry

2026-03-23 | original

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Why This Matters

Fyn's latest release enhances the Python package management ecosystem by offering a faster, more efficient tool built in Rust, with improved features, bug fixes, and the removal of telemetry for better privacy. Its robust project and environment management, task running, and shell activation capabilities make it a compelling choice for developers seeking streamlined workflows. This update underscores the industry's move towards faster, privacy-conscious, and more versatile development tools.

Key Takeaways

Fyn is an ultra-fast Python package manager built in Rust, focusing on performance and privacy.
It offers comprehensive project management, task running, and environment activation features.
The new version removes telemetry, enhancing user privacy and control.

fyn

An extremely fast Python package and project manager, written in Rust.

fyn is an independent Python package manager built on uv's foundation, with telemetry removed, new features added, and long-standing bugs fixed. See MANIFESTO.md for the full story.

Highlights

Installation

From PyPI:

# With pip. pip install fyn

# Or pipx. pipx install fyn

Or build from source:

cargo install --path crates/fyn

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