QuantStack

We have shipped a new round of improvements to Notebook.link! - A much faster filesystem; - Easier package installation with support of pyemscripten wheels; - URL parameters in the kernel; - One-click AI provider connection via PKCE. notebook.link/blog/news-oc...

🇫🇷 Jupyter is heading to Paris! Jupyter be front and center at Compute! Paris 2026 (Nov 25–26, Sorbonne Université), with an opening keynote by Fernando Pérez and a dedicated "Planet Jupyter" track. blog.jupyter.org/posts/2026/j... @computeparis.bsky.social @fernandoperez.org

For years, Google Earth Engine has been the only real option for scientists who want to run algorithms across petabytes of satellite data and see results fast. That's starting to change.

Emscripten-forge now lets you build, package, and run full Qt6 applications entirely in the browser - no server required. Shared dependencies, caching, and seamless distribution as conda packages. Try live demos like qt-calculator and sqlitebrowser. Full story: notebook.link/blog/qt-in-t...

🚀 NumPy in the browser just got faster. Emscripten-forge NumPy now uses OpenBLAS, bringing significant speedups to linear algebra, including matrix multiplication. Upcoming WASM SIMD kernels will improve performance further. 🔗 notebook.link/blog/the-las... cc @conda-forge.org @pyodide.org

Première édition de Compute! Paris @computeparis.bsky.social les 25 et 26 novembre prochains à Sorbonne Université. C'est organisé par l’équipe de PyData Paris 2024 et 2025 Tous les détails dans la dépêche dédiée ▶️ linuxfr.org/news/compute...

🚀 We are thrilled to welcome Pablo Winant to QuantStack as a Scientific Advisor. Pablo joins us part-time while on a sabbatical year from his roles as a Professor at ESCP Business School and École Polytechnique. quantstack.net/blogs/Pablo-... @xpolytechnique.bsky.social @dynare.bsky.social

Browser-based robotics, from CAD to URDF kinematics 🤖 Yahia Heni's work on #JupyterCAD + JupyterLab-URDF lets you design 3D parts, export to URDF, edit joints & simulate kinematics, all in #JupyterLab, zero local install. Blog: blog.jupyter.org/a-robotics-w... Demo: notebook.link/@Yahiewi/urd...

Announcing JupyterGIS 0.16.0! 🤩 👋 blog.jupyter.org/jupytergis-0... We are excited to show you everything we've been building for the past months: - improved story-maps look and editor - a new Grammar Of Graphics symbology - openEO support - a new R API @jupyter.org @geojupyter.bsky.social

Congratulations to the JupyterGIS and GeoJupyter team. The paper "JupyterGIS: A Collaborative GIS Environment for JupyterLab" was just published into JOSS. @geojupyter.bsky.social, @martinrenou.bsky.social, @annefouilloux.bsky.social, @mfisher87.bsky.social, @arjxn-py.bsky.social

Ten years ago, I founded QuantStack on a conviction: that we could build a sustainable business by supporting world-class open-source software to advance science. We had no outside funding, no guarantees, just trust in open collaboration. Read the full story: quantstack.net/blogs/Decade...

Numba now runs entirely in the browser through #JupyterLite and emscripten-forge 🤘 Read Anutosh's post for more details on how we brought Numba's JIT compiler to #WebAssembly, enabling a broader ecosystem including PyTensor, PyMC, Interpolation․py, and Dolo․py. notebook.link/blog/numba-i...

The Compute! Paris 2026 Schedule is Live! We’re thrilled to unveil the official schedule for Compute! Paris 2026, and we couldn’t be prouder of our first edition’s incredible lineup!

JupyterLite 0.8 is released! 🎉 This release updates to the latest JupyterLab 4.6 and Notebook 7.6, and brings new improvements across related projects. ➡️ Try it online: jupyter.org/try-jupyter ➡️ Blog post: blog.jupyter.org/jupyterlite-...

Congratulations to the newest batch of Jupyter Distinguished Contributors, James Colliander, Florence Haudin, Gregory Mooney, and Kirstie Whitaker. The Jupyter community thanks you for your effort to advance Project Jupyter, and for leading by example! blog.jupyter.org/congratulati...

Thanks FastAPI for supporting @jupyter.org!

Journées Open Source de @insee.fr au lieu de la transformation - @sylvaincorlay.bsky.social de QuantStack fait la keynote d'ouverture, reliant son expérience d'entrepreneur dans l'open source et sa participation (et celle de son entreprise) au projet @jupyter.org

New SIMD improvements make Parquet column reads up to 80% faster on baseline ARM64 and SVE. Shipping with @arrow.apache.org 25.0. Work done @quantstack.bsky.social with support from a generous sponsor. medium.com/@AntoineProu...

Compute! Paris 2026 Sprints on Nov 27! We’re excited to announce a full day of coding, collaboration, and open-source contributions in scientific computing. Hosted by SCAI, our community partner. scai.sorbonne-universite.fr Learn more: compute.events/paris2026/sprints.html

Welcome to our first sponsor: @stat4decision.bsky.social www.stat4decision.com/fr/

⚠️There are only a few days left to submit your proposal to Compute! Paris 2026. 🗓️ Cfp closes on Sunday (June 7th). 🔗 compute.events/paris2026/

Wolf Vollprecht, founder of Prefix.dev, creator of mamba & pixi, and conda-forge core maintainer, is keynoting Compute! Paris 2026! Hear his vision for the future of open-source tooling, performance, and data science infrastructure.

Mackenzie Mathis (EPFL neuroscientist, DeepLabCut & CEBRA co-creator and open science pioneer) is keynoting at Compute! Paris 2026! Her tools (used by 1000s of labs) decode behavior & neural activity. She explores adaptive intelligence, how brains and machines learn in a changing world.

We added top-level await support to xeus-python 🚀 You can now use toplevel async code directly in notebooks without extra boilerplate — and without blocking the kernel. Available with xeus-python 0.19.0 Here is a short blog post about how it works: notebook.link/@DerThorsten...

📣 We are delighted to release mamba 2.6.0. 📣 This minor version includes the support for sharded repodata, significantly improving the UX of the project. 🔗 Read more about improvements on this blog post: medium.com/@julien.jerp... 🔗 For a full overview for the change: github.com/mamba-org/ma...

Biologists, city planners, physicists, and engineers... What do they have in common? At Compute! Paris 2026 (Nov 25-26), they’re solving the same data challenges from different angles. Join the conversation! compute.events/paris2026/ #ComputeParis

Working on a new feature for the next JupyterLab 4.6 release that makes it easier to move panels and tabs across the interface and customize the layout to your liking. This is going to be useful for working with your favorite coding agent CLI right from within JupyterLab! 🤖

Compute! is a new conference series built on the idea that data professions need transparency, not black boxes. It connects open-source maintainers with users, fostering collaboration across disciplines. The first event will happen in Paris in November, and the CfP is open! compute.events/paris2026/

Explore the expansion of geospatial workflows in Jupyter. Gregory Mooney, QuantStack highlights how JupyterGIS is enabling collaborative mapping and spatial analysis within interactive notebooks. #Jupyter #GIS #OpenSource blog.jupyter.org/expanding-ge...

At QuantStack, we are deeply committed to advancing the @arrow.apache.org ecosystem. Today, we introduce Sparrow-IPC, a modern C++20 implementation of Arrow IPC by Hind Montassif, Alexis Placet @alexis-placet.bsky.social, and Johan Mabille. More details in our post: medium.com/@QuantStack/...

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...

Dive into our rewrite of a low-level algorithm in @arrow.apache.org using C++ metaprogramming that improves the performance of #Parquet reading by up to 50-60%. Impressive work done mostly by @antoineprv.bsky.social 1/ Highly understandable overview at medium.com/@AntoineProu...

Recreating Ed Hawkins' climate spiral visualization in a Jupyter Notebook on notebook.link 🎨 The notebook uses NASA GISTEMP v4 monthly temperature anomalies from 1980 to 2025, and the p5.js JupyterLite kernel for ad-hoc visualizations 💡 ➡️ Try it in your browser: notebook.link/@jtp/paintin...

Backstage interview: @ylechelle.bsky.social Ian explained how :probabl turned scikit-learn (a widely used open-source tool) into a sustainable business while keeping it open. His message: Open source is Europe’s best shot at tech independence, from open data to open hardware. youtu.be/VMOpvJei4hk

And this was all done by @antoineprv.bsky.social , whose BlueSky account isn't very discoverable. 😊

At @quantstack.bsky.social we designed novel bit-unpacking SIMD optimizations for @arrow.apache.org and #ApacheParquet, and implemented them entirely using C++ metaprogramming instead of Python-based code generation. We'll publish a deep dive blog post soon. github.com/apache/arrow...

@geojupyter.bsky.social 's JupyterGIS just got two new features: built-in STAC browsing and Story Maps. Discover #geospatial data and tell map-based stories all from @jupyter.org! Try it live in your browser: notebook.link/@quantstack/.... Read more on the Project Jupyter Blog: shorturl.at/UXE8s

🧪 DataLab-Kernel | Advanced plotting showcase Running in the browser via notebook.link from @quantstack.bsky.social The plotter now implements all core DataLab visualization features Standalone demo — no DataLab required DataLab-Kernel: github.com/DataLab-Plat... DataLab: datalab-platform.com

🎉 JupyterLite is now part of Project Jupyter! Run Jupyter notebooks directly in your browser: no server, no setup. Many thanks to the JupyterLite contributors and supporters like QuantStack, Bloomberg and the Gates Foundation. 🔗 blog.jupyter.org/jupyterlite-...

🧪 Sigima, running in the browser thanks to notebook.link from @quantstack.bsky.social The scientific signal & image processing engine behind DataLab (datalab-platform.com), now executable directly in a @jupyter.org notebook (no local install required). Lightweight, reproducible, easy to share.

🧪 Awesome announcement from the @quantstack.bsky.social team! Introducing notebook.link, share your computational notebook and have them run directly in the browser with no setup, powered by Jupyterlite and the xeus stack. #datascience #scientificcomputing

🧪 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.

🧪 Experimenting with notebook.link from @quantstack.bsky.social, and DataLab-Kernel (github.com/DataLab-Plat...), a Xeus-Python JupyterLite-compatible kernel. Goal: share fully interactive DataLab-powered notebooks directly in the browser. Looks promising for demos, docs, and reproducible examples!

A viewer for Parquet, SQLite, and Avro files in JupyterLab. Check out our new JupyterLab extension: Arbalister. 🏹 Built upon Apache Datafusion, @jupyter.org , and @arrow.apache.org , it lazily fetches rows so that you can view files larger than memory! blog.jupyter.org/instantly-vi...

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/...

Together with @nicolasbrichet.bsky.social at @pydataparis.bsky.social 2025, we presented a vision for what AI @jupyter.org can look like, with a focus on forward-looking, browser-based AI workflows 🤖 The recording is now available on YouTube, happy watching! www.youtube.com/watch?v=cKeu...

JupyterLite now supports any-llm-gateway as a backend for its AI static front-end. any-llm-gateway routes LLM requests through a single gateway rather than tying usage to one provider. Integration details: link.mozilla.ai/jupyterlite-...