Wolf Vollprecht
@wolfvollprecht.bsky.social
📤 60
📥 25
📝 21
Working on software package management at
@prefix.dev
Very cool to see `uv` adopting our @sigstore Rust crates to generate publish attestations for @pypi automatically. Pixi publish has it already, and it's nice.
github.com/astral-sh/u...
loading . . .
Generate PEP 740 attestations by woodruffw · Pull Request #19489 · astral-sh/uv
Summary This adds initial support for generating PEP 740 attestations to uv publish. With this change, users won't need to generate attestations AOT/OOB with something like attest-action; u...
https://github.com/astral-sh/uv/pull/19489
1 day ago
0
1
1
Looking forward to this
add a skeleton here at some point
1 day ago
0
1
0
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
11 days ago
The latest version of Pixi comes with a new lockfile "v7"! It locks down build dependencies for the first time, making your builds even more reproducible. And of course fixes a number of issues. Read more in our blog post:
prefix.dev/blog/lock-f...
loading . . .
Whats New with Lockfile Version 7
We have a new lock file, lets go over the changes.
https://prefix.dev/blog/lock-file-v7
0
3
2
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
10 days ago
Want to understand why more and more Scientific Python projects are addopting Pixi? We'll give an overview during our talk at
#SciPy2026
!
0
6
3
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
about 1 month ago
Pytorch + Ultralytics + ROS2 Humble on a Nvidia Jetson Nano with no Docker! Pixi, together with @condaforge and @RoboStack, makes this possible!
#ROS
#nvidia
#opencv
loading . . .
1
8
2
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
about 2 months ago
Are you dreaming of your own specialized *-forge? Our new build tool "rattler-build" makes it simple. Check out our new docs on how to create a custom "r-forge", "rust-forge", "ruby-forge", ...
rattler-build.prefix.dev/latest/tips...
0
3
2
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
about 2 months ago
RISC-V in Europe and China has real momentum. Pixi actually has supported this new hardware architecture since a while, but the @openKylin project has made it real. In this blog post we explore how Pixi support RISC-V!
prefix.dev/blog/pixi-o...
#RISCV
#EuroHPC
loading . . .
Pixi supports RISC-V
As the RISC-V ecosystem matures from silicon to software, one piece has been missing: a modern, cross-platform package manager that makes it as easy to develop on RISC-V as on x86 or ARM. That changes today. Pixi now natively supports RISC-V (riscv64), bringing the full power of the conda ecosystem to open hardware.
https://prefix.dev/blog/pixi-on-riscv
1
6
1
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
about 2 months ago
Bioconda now recommends Pixi ahead of conda and mamba as the way to get started. This means a lot to us. We're all-in on making Pixi the best tool for scientific package management.
0
11
2
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
about 2 months ago
"Building From Source Shouldn't Be This Hard" That's our motto, read our latest blogpost to understand what we're building and how Pixi already helps you with today! 🗞️ Read it here:
prefix.dev/blog/buildi...
#pacakgemanagement
#pixi
#ROS
#condaforge
loading . . .
Building From Source Shouldn't Be This Hard
Pixi-build is being designed to make package building easy, reproducible and maybe even fun!
https://prefix.dev/blog/building-from-source-not-hard
0
5
3
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
about 2 months ago
No more duplicate dependencies in pyproject.toml! Pixi Python packages can now set `ignore-pypi-mapping = false` to automatically convert `pyproject.toml` dependencies into conda package requirements. The goal is no configuration, this is a step in that direction!
1
12
4
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
about 2 months ago
The
notebook.link
team is building "serverless scientific computing" on top of the modern Conda ecosystem & the
prefix.dev
package server. Read the guest blog on how they shipped interactive WASM for Python, R, C++, Fortran and more:
prefix.dev/blog/server...
loading . . .
How notebook.link Scales Without Backends
Notebook.link combines WebAssembly and the conda ecosystem to deliver scalable, serverless computing environments that run entirely in the browser. No backend. No scaling headaches. Just instant, collaborative scientific computing for everyone.
https://prefix.dev/blog/serverless-scientific-computing-how-notebook-link-scales-without-backends
1
9
8
Seeing the amazing FreeCAD 1.1 update makes me really proud that development of FreeCAD is supported by Pixi:
www.youtube.com/watch?v=bYd...
- great stuff!
loading . . .
FreeCAD 1.1 is Finally HERE — It’s a GAME CHANGER ! (Major Updates you missed)
FREECAD 1.1 is OUT ! A huge thanks to PCBWay for sponsoring today's video! Sign up here ▶ https://www.pcbway.comPCBWay manufactures reliable PCBs, 3D prints,...
https://www.youtube.com/watch?v=bYdobpjTypg
about 2 months ago
2
3
1
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
2 months ago
Don’t like writing recipes? With Pixi packages, it’s a lot less work to package up remote projects! This is all the configuration needed to build the ruff project into a conda package with Pixi. 🤯
1
3
2
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
2 months ago
Pixi can now natively build R packages - for your own packages or thirdparty packages from CRAN or Github. The new `pixi-build-r` build backend makes it possible. pixi-build-r will install compilers, system-level dependencies and R / r-packages from @condaforge.
1
10
4
More Pixi stakeholders! Thanks Pavel and
@quantco.com
for being true Pixi &
@conda-forge.org
supporters.
add a skeleton here at some point
2 months ago
0
9
2
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
2 months ago
The RFC period has started on the "staging cache" CEP for the v1 recipe format. This might sound like gibberish but is a powerful feature that will allow us to convert more (complicated!) packages on @condaforge to the V1 recipe format!
1
5
2
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
2 months ago
You can now install the Open-Source physics engine, Newton, with Pixi! 🤖 Getting a full humanoid robot simulator has never been easier, just run one command! Check out the original announcement:
github.com/newton-phys...
#robotics
#NVIDIA
#warp
#newton
loading . . .
2
6
2
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
2 months ago
We improved our package builder Rattler-Build a lot over the past months, so we wrote a blog post about it!
prefix.dev/blog/whats-...
1
11
4
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
2 months ago
You thought Pixi was only for data science and Python?! Nope! Pixi is the perfect tool to manage your Kubernetes deployments, turbocharged by the github-releases channel we can offer many of the most used packages! No more curl-pipe-to-bash. Read more:
prefix.dev/blog/kubern...
loading . . .
Exploring the Kubernetes Ecosystem with Pixi
If you've ever spent 20 minutes debugging CI because helm was the wrong version, this post is for you.
https://prefix.dev/blog/kubernetes-on-prefix-dev
1
10
4
Europe and China are both investing heavily in RISC-V chips. Thanks to the OpenKylin project the
@conda-forge.org
project is making progress as well. Today I ran Pixi on RISC-V for the first time. If you're investing in RISC-V infrastructure and want the package tooling to match — let's talk.
3 months ago
0
5
2
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
3 months ago
A brain in a conda package. What!? Read our latest blogpost on how to ship AI/ML models with conda packages!
prefix.dev/blog/packag...
1
5
2
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
3 months ago
The latest Pixi releases and installer on Windows are properly signed with a Microsoft Certificate. Would it be useful to integrate signing for macOS and Windows into rattler-build?
0
3
1
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
3 months ago
Everyone loves shell completions, right? With carapace, you get amazing shell completions for most CLI tools, including Pixi since the latest release. This works on all platforms and shells.
loading . . .
1
4
1
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
3 months ago
Pixi skills are kinda cool. A couple extremely useful ones already hosted on prefix – such as the `conda-forge` skill, or the `rattler-build` skill. It's useful because it contains a bunch of expert knowledge, digestible for agents.
1
5
3
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
3 months ago
The @condaproject is moving forward with formalizing the current implemented standards! Strengthening the whole ecosystem and promoting collaboration.
1
6
1
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
3 months ago
rattler-build handles thousands of real world packages, and they often come with small patches. Historically, we used a mix of `git apply` and `patch`, but both have issues for cross-platform compatibility with a wide range of real-world patches. Now, we have our own Rust library
1
5
1
Last weekend I made `reportlab` a noarch package on @condaforge and added `pycairo` to emscripten-forge. Now you can easily generate PDFs in
notebook.link
! This is critical for a lot of agentic "business use cases".
3 months ago
1
0
0
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
3 months ago
Today was a good day for the Gnome ecosystem on
@conda-forge.org
! Two PRs merged to get more low level libraries: libadwaita, sassc, appstream, libshumate and json-glibc by Dan Yeaw and Felix Häcker.
0
9
2
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
3 months ago
We're taking supply chain security seriously for the Conda ecosystem. That's why we integrate deeply with the @projectsigstore ecosystem for attestation – soon coming to recipes as well to validate source code (sdist, github release) attestations.
0
2
2
Many RISC-V experts at the @condaforge meeting today. This is going to move quickly! Pixi also just finished building for RISC-V, exciting stuff.
4 months ago
0
3
0
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
4 months ago
We're excited to announce Pixi GUI, developed by our working student Felix Häcker! With the goal to make Pixi accessible to a wider audience while also empowering expert users. Find out more in Felix's blog post:
prefix.dev/blog/introd...
1
7
3
reposted by
Wolf Vollprecht
Pierre
4 months ago
🧪 Live experiment using
notebook.link
from
@quantstack.bsky.social
A notebook with DataLab-Kernel (
github.com/DataLab-Plat...
), a Xeus-Python JupyterLite-compatible kernel, connects automatically to a running local DataLab app (
datalab-platform.com
). No config. Auto-discovery. It simply works.
loading . . .
4
161
26
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
4 months ago
Should @OpenRoboticsOrg support
#Pixi
as an co-official installation tool on Linux? Join the converstation in the discource linked thread 🧵
1
2
1
reposted by
Wolf Vollprecht
QuantStack
4 months ago
We are thrilled to introduce
notebook.link
, a platform that lets you create, share, and run Jupyter notebooks instantly in your browser. Powered by JupyterLite and WebAssembly, it supports Python, R, C++, and a full in-browser terminal experience. 📖 Read the full story:
medium.com/@QuantStack/...
loading . . .
Notebook.link
https://notebook.link
0
24
21
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
5 months ago
The official @NVIDIA cuda-python project now also uses Pixi!
#pixi
#CUDA
#NVIDIA
0
9
3
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
5 months ago
Pinning a dependency in Pixi is defaulting to semantic versioning, but there are more styles that you can use!
loading . . .
0
5
1
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
5 months ago
Did you know the channels have a priority to them? This can be important when you mix multiple channels in your Pixi workspace.
loading . . .
0
4
2
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
6 months ago
A conda package from GIT SOURCE? How?! 🤯 We might have been hinting at "pixi-build", but now we're unveiling what makes it work: pixi build backends. A build backend basically produces a "recipe" from language-specific metadata, and pixi build orchestrates the build.
1
7
2
PackagingCon is back in smaller format as a Devroom at FOSDEM 2026! We would love to see you there - and hear a lot of interesting talks.
blog.ecosyste.ms/2025/11/06/f...
loading . . .
Call for Participation: Package Managers devroom at FOSDEM 2026
We are excited to announce the Call for Participation for the Package Managers devroom at FOSDEM 2026, taking place on Saturday, 31st January 2026 at the Université libre de Bruxelles, Belgium.
https://blog.ecosyste.ms/2025/11/06/fosdem-2026-package-managers-devroom-cfp.html
6 months ago
0
1
1
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
7 months ago
Missed us at @europython? Here is the recording:
www.youtube.com/watch?v=HOq...
loading . . .
Unlocking Hidden Power of Conda with Pixi — Ruben Arts, Julian Hofer
[EuroPython 2025 — Terrace 2B on 2025-07-18]🎤 *Unlocking Hidden Power of Conda with Pixi by Ruben Arts, Julian Hofer* 🔗 https://ep2025.europython.eu/sessi...
https://www.youtube.com/watch?v=HOqv3kh4z_c
0
9
5
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
7 months ago
Learn how you can use Pixi with
#ROS
! We've put together some videos to showcase some Pixi features that are helpful for ROS development. YouTube Playlist:
www.youtube.com/playlist?li...
#ROSCon
#ROSCon2025
loading . . .
ROS with Pixi
Video's about how to use Pixi and ROS packages together.
http://www.youtube.com/playlist?list=PLJ18jaEFbsWiCfrbczEoDTXqhpdsZJfjc
1
2
1
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
7 months ago
What ROS at an Airport Apple Store?! Pixi makes installation so easy, we can install ROS anywhere now.
#ROSCon2025
#ROSCon
#ROS
loading . . .
1
7
3
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
7 months ago
What!? Multiple
#ROS
distros on one machine 🤯. No Docker, No VM, No dual-boot needed!
www.youtube.com/watch?v=oiX...
#ROSCon
#ROSCon2025
loading . . .
Multiple ROS Distro's on One Machine!
Pixi allows you to install ROS packages from a RoboStack channel with ease.This video shows you that on a MacBook but the same example works on Linux, Mac an...
https://www.youtube.com/watch?v=oiXH8mwotfs
0
1
1
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
7 months ago
Get your hands on stickers from @baszalmstra and @rarts_ruby at
#ROSCon
! Plus, catch a sneak peek of our latest development work!
0
3
1
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
7 months ago
In our little deep dive series we're now exploring how cross-compilation in the Conda ecosystem works:
prefix.dev/blog/cross-c...
. Back in the days,
@conda-forge.org
rolled this out widely to support osx-arm64 early on, and now for linux-aarch64/ppc64le.
loading . . .
Cross compiling in the Conda ecosystem
Cross compiling is a fundamental capability in modern software development, allowing developers to build packages for different architectures without needing access to the target hardware.
https://prefix.dev/blog/cross-compilation-in-the-conda-ecosystem
0
6
6
reposted by
Wolf Vollprecht
Dave Barry
8 months ago
I just tried Pixi from
@prefix.dev
for the first time.
0
3
1
reposted by
Wolf Vollprecht
jaimergp
8 months ago
I have submitted by first draft PEP! 📦 PEP 804 complements PEP 725 ([external] dependency metadata) with a mapping mechanism to translate ecosystem-agnostic identifiers to your favourite package manager. More info: - PEP 725:
discuss.python.org/t/103890
- PEP 804:
discuss.python.org/t/103891
loading . . .
PEP 804: An external dependency registry and name mapping mechanism
Hello everyone! On behalf of my co-authors @pradyunsg, @rgommers, @mgorny and @msarahan, I’d like to share our work on this new PEP 804 “An external dependency registry and name mapping mechanism”. ...
https://discuss.python.org/t/pep-804-an-external-dependency-registry-and-name-mapping-mechanism/103891/1
1
6
1
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
8 months ago
Our server has recently delivered more than 1.000.000 packages for the first time. We've hit that mark a few more times since. Seeing this constant growth is fascinating and we are confident that our infrastructure will scale well beyond this number!
0
5
2
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
8 months ago
It's always a pleasure to get invoices from Azure. Why? Because it means our @
condaforge.org
sponsorship is being used! We have been sponsoring a big Windows machine through CirunHQ for the past year to build PyTorch, libmagma, and other hard-to-build software for Windows.
0
8
2
reposted by
Wolf Vollprecht
Prefix.dev - the Pixi company
8 months ago
We're continuing our little deep dive series into Conda packaging. Mutex packages are useful to guide the SAT solver into specific parts of the dependency tree, and globally select either a GPU or CPU variant or similar features for an environment.
prefix.dev/blog/what-a...
loading . . .
Mutex packages in the Conda world
Mutex packages are a useful mechanism to guide the solver towards certain dependencies, mutually excluding other dependency trees.
https://prefix.dev/blog/what-are-mutex-packages-in-the-conda-ecosystem
0
7
3
Load more
feeds!
log in