EuroSciPy 2026

Pixi: better developer experience for scientific Python projects
2026-07-21 , Room 1.38 (Ground Floor, Turing)

In this talk, you'll learn about Pixi and how you can use it to create fast, reproducible, and slick developer experiences across multi-platform, multi-language projects. Furthermore, you'll learn how to use pixi-build to build your own packages and seamlessly integrate building from source into your developer workflows, as well as a bit about how Pixi makes things work behind the scenes. Finally, you'll hear about how big projects like SciPy and NumPy are utilising Pixi to facilitate advanced development and make the world of scientific Python software more secure, while also boosting accessibility and improving the new contributor experience.


Pixi is to conda as uv is to pip: a modern package management tool, offering a workspace-based developer experience. Like conda, Pixi supports many platforms and programming languages, so is perfect for developers working in languages beyond Python. Many scientific Python packages like SciPy and XArray have started using Pixi to enable better developer experiences.

In this talk, you'll learn about Pixi and how you can use it to create fast, reproducible, and slick developer experiences across multi-platform, multi-language projects. Furthermore, you'll learn how to use pixi-build to build your own packages and seamlessly integrate building from source into your developer workflows, as well as a bit about how Pixi makes things work behind the scenes. Finally, you'll hear about how big projects like SciPy and NumPy are utilising Pixi to facilitate advanced development and make the world of scientific Python software more secure, while also boosting accessibility and improving the new contributor experience.

You can also expect a quick live demo of some of the cool things made possible by Pixi :)

No prior knowledge is expected!


Expected audience expertise: Domain: none Expected audience expertise: Python: some Project homepage or Git: Project homepage or Git Your relationship with the presented work/project: Developed the presented feature, Maintainer of the presented library/project

I'm a core maintainer of SciPy and Pixi, and a member of the Consortium for Python Data API Standards. I recently finished a master's degree in Computer Science and Philosophy at the University of Oxford.

This speaker also appears in:

Wolf Vollprecht has been active in the Python open source community for the past 5 years. He is a core member of conda-forge and the conda steering council, and the original author of the mamba package manager. He also has extensive experience in high-performance C++ and Rust. 2 years ago he started prefix.dev where the team is focusing all efforts on making cross-platform, language independent package management great (on top of the conda ecosystem).