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Sylvain Corlay

@sylvaincorlay.bsky.social
148 followers 71 following 10 posts

@QuantStack.bsky.social founder @jupyter.org maintainer @computeparis.bsky.social organizer ACM software system award 2017.

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Reposted by Sylvain Corlay
Martin Renou @martinrenou.bsky.social · 24/08/2026
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
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QuantStack @quantstack.bsky.social · 19/08/2026
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
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Sylvain Corlay @sylvaincorlay.bsky.social · 17/08/2026
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...
quantstack.net
QuantStack
A team behind major open-source projects of the scientific computing ecosystem such as Jupyter, Conda-Forge, Mamba, XTensor/SIMD, Apache Arrow/Parquet and more.
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QuantStack @quantstack.bsky.social · 12/08/2026
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...
notebook.link
Numba in the Browser: Unlocking a New Scientific Python Stack in JupyterLite | Notebook.link Documentation
A JIT compiler and its scientific Python ecosystem running entirely in the Web browser
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Compute! Paris @computeparis.bsky.social · 06/08/2026
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!
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Jeremy Tuloup @jtp.io · 10/07/2026
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-...
blog.jupyter.org
JupyterLite 0.8 is released! 🎉
JupyterLite is a Jupyter distribution that runs entirely in the web browser without any server components. Deployment and hosting are easy…
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Project Jupyter @jupyter.org · 25/06/2026
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...
blog.jupyter.org
Congratulations, Distinguished Contributors!
We are proud to announce the recipients of the Jupyter Distinguished Contributor (JDC) award for the 2025 cohort of contributors.
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Emilien Schultz @emilienschultz.eurosky.social · 16/06/2026
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
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AntoinePrv @antoineprv.bsky.social · 11/06/2026
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...
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Compute! Paris @computeparis.bsky.social · 10/06/2026
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
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Compute! Paris @computeparis.bsky.social · 05/06/2026
Welcome to our first sponsor: @stat4decision.bsky.social www.stat4decision.com/fr/
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Sylvain Corlay @sylvaincorlay.bsky.social · 04/06/2026
⚠️There are only a few days left to submit your proposal to Compute! Paris 2026. 🗓️ Cfp closes on Sunday (June 7th). 🔗 compute.events/paris2026/
compute.events
Compute! Paris 2026
Understanding your tools and algorithms is what gives you agency in a digital world. Paris, November 25–26, 2026.
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Compute! Paris @computeparis.bsky.social · 22/05/2026
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.
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Compute! Paris @computeparis.bsky.social · 20/05/2026
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.
Mackenzie Mathis
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Thorsten Beier @derthorsten.bsky.social · 08/05/2026
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...
notebook.link
Notebook.link - Run & Share Jupyter Notebooks Instantly
A fully interactive, scalable, and language-agnostic computing environment that operates entirely in your browser. Supports Python, R, C++, and GNU Octave. Share a link — anyone can run it instantly.
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Julien Jerphanion @jjerphan.xyz · 29/04/2026
📣 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...
medium.com
Sharded Repodata Support in Mamba
Introduction: conda packages metadata indexing
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Prefix.dev - the Pixi company @prefix.dev · 28/04/2026
Pixi is gaining traction fast in robotics, so we built a dedicated landing page to help roboticists get up and running quickly. pixi.prefix.dev/latest/robo... #ROS #robotics
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Compute! Paris @computeparis.bsky.social · 28/04/2026
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
compute.events
Compute! Paris 2026
Understanding your tools and algorithms is what gives you agency in a digital world. Paris, November 25–26, 2026.
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Compute! Paris @computeparis.bsky.social · 23/04/2026
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/
compute.events
Compute! Paris 2026
Understanding your tools and algorithms is what gives you agency in a digital world. Paris, November 25–26, 2026.
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Olivier Grisel @ogrisel.bsky.social · 21/04/2026
The team of JupyterCon 2023, PyData Paris 2024 & 2025 organizes a new conference named Compute! Paris 2026 on open source computation and data. The event will take place on November 25–26, 2026 at Sorbonne Université in Paris. CfP deadline: May 24, 2026: compute.events/paris2026/cf...
compute.events
Call for Proposals — Compute! Paris 2026
Submit your talk proposal for Compute! Paris 2026. The Call for Proposals is open from April 15th to May 24th, 2026.
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Project Jupyter @jupyter.org · 09/04/2026
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...
blog.jupyter.org
Expanding Geospatial Workflows in JupyterGIS: STAC Browsing and Story Maps
Since its initial announcement less than two years ago, JupyterGIS has been a growing effort to bring interactive geospatial workflows into…
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Reposted by Sylvain Corlay
QuantStack @quantstack.bsky.social · 07/04/2026
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/...
medium.com
Introducing Sparrow-IPC: A modern C++ implementation of Arrow IPC
If you work in the world of data engineering, you are probably familiar with Apache Arrow — the universal columnar format and…
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Prefix.dev - the Pixi company @prefix.dev · 27/03/2026
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...
prefix.dev
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.
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Antoine Pitrou @pitrou.net · 17/03/2026
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...
medium.com
Faster Reads for Apache Parquet: Improving Integer Unpacking
By rewriting the SIMD optimizations of a critical low-level algorithm in Arrow C++, we have been able to deliver substantial speedups when…
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Jeremy Tuloup @jtp.io · 12/03/2026
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...
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Antoine Pitrou @pitrou.net · 26/02/2026
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...
github.com
GH-48277: [C++][Parquet] unpack with shuffle algorithm by AntoinePrv · Pull Request #47994 · apache/arrow
Rationale for this change The current bit-unpacking algorithm (which is implemented as a C++ code generator script in Python) does not fully leverage SIMD operations: all loads and some bitshifts u...
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Martin Renou @martinrenou.bsky.social · 24/02/2026
notebook.link combines the power of @jupyter.org's JupyterLite, mambajs and jupyterlite-ai to bring to you the best of open-source data analysis and visualization tools, all within your browser: no installation required! 🤘 #DataScience #OpenSource #Jupyter #WebAssembly #AI #Python
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Martin Renou @martinrenou.bsky.social · 24/02/2026
@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
shorturl.at
Expanding Geospatial Workflows in JupyterGIS: STAC Browsing and Story Maps
Since its initial announcement less than two years ago, JupyterGIS has been a growing effort to bring interactive geospatial workflows into…
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passagemath @passagemath.org · 20/02/2026
First @jupyter.org JupyterLite #Python notebook for serverless, in-browser #SageMath computations in algebraic combinatorics, using passagemath-combinat compiled to #WebAssembly with @emscripten.org passagemath.org/passagemath-... #OpenSource #Mathematics
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Pierre @pierreraybaut.bsky.social · 15/02/2026
🧪 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
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Project Jupyter @jupyter.org · 12/02/2026
🎉 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-...
blog.jupyter.org
JupyterLite Officially Joins Project Jupyter!
We are thrilled to announce that JupyterLite is now an official part of Project Jupyter. This milestone marks a significant step forward…
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Pierre @pierreraybaut.bsky.social · 04/02/2026
🧪 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.
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Teon ⁂ @teonbrooks.com · 22/01/2026
🧪 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
medium.com
Introducing notebook.link: The Future of Notebook Sharing
Reimagining how you share, collaborate, and run Jupyter notebooks — all in your browser.
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Pierre @pierreraybaut.bsky.social · 01/02/2026
🧪 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.
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Pierre @pierreraybaut.bsky.social · 31/01/2026
🧪 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!
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AntoinePrv @antoineprv.bsky.social · 29/01/2026
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...
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Martin Renou @martinrenou.bsky.social · 23/01/2026
Pandas 3.0 was just released yesterday!! 🤘 And guess what? You can already play with it in Notebook.link. I quickly built a Notebook.link link for you to play with it now: notebook.link/@martinRenou...
notebook.link
Notebook Link
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Antoine Pitrou @pitrou.net · 23/01/2026
It's public for everyone to use, and it's powered by free / open source software that we at QuantStack actively contribute to. (note: I didn't work on this)
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QuantStack @quantstack.bsky.social · 22/01/2026
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/...
notebook.link
Notebook.link
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Jeremy Tuloup @jtp.io · 22/12/2025
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...
youtube.com
Jeremy Tuloup & Nicolas Brichet - Browser-based AI workflows in Jupyter
YouTube video by PyData
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mozilla.ai @mozilla.ai · 19/12/2025
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-...
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Compute! Paris @computeparis.bsky.social · 16/12/2025
All talks are now online - perfect for cozy learning by the fire. 🎄🔥 🎁 Watch here: www.youtube.com/playlist?lis... Missed a session? Now’s your chance! Share your favorites and keep the inspiration going. Wishing you a season of learning and innovation!
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The New Stack @thenewstack.io · 04/12/2025
@quantstack.bsky.social, an “almost accidental startup,” is building a serverless distro of @jupyter.org for Jupyter’s global adoption. Feat. @sylvaincorlay.bsky.social
bit.ly
Teaching a Billion People to Code: How JupyterLite Is Scaling the Impossible
QuantStack, an “almost accidental startup,” is building a serverless distro of JupyterLab for Jupyter’s global adoption.
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Jeremy Tuloup @jtp.io · 05/12/2025
🚀 JupyterLite 0.7 is now available! - Support for workspaces - Audio / video playback - Interrupt execution queue - Basic notebook export - Notebook scrolling fixes ➡️ Try it: jupyter.org/try-jupyter ➡️ Walkthrough video: www.youtube.com/watch?v=utNt... ➡️ Blog post: blog.jupyter.org/jupyterlite-...
jupyter.org
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AntoinePrv @antoineprv.bsky.social · 02/12/2025
SIMD coding is hard: platforms, inconsistencies, lane constraints... but xsimd abstracts a lot away. With my first contributions, I improved byte shuffling, now available in the latest 14.0 release. #C++ #SIMD #xsimd #openSource
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The New Stack @thenewstack.io · 01/12/2025
@quantstack.bsky.social, an “almost accidental startup,” is building a serverless distro of @jupyter.org for Jupyter’s global adoption. Feat. @sylvaincorlay.bsky.social
bit.ly
Teaching a Billion People to Code: How JupyterLite Is Scaling the Impossible
QuantStack, an “almost accidental startup,” is building a serverless distro of JupyterLab for Jupyter’s global adoption.
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Schmidt DSE at UC Berkeley @schmidtdse.bsky.social · 25/11/2025
Missed #JupyterCon25? You can catch up on YouTube! Check out @mfisher87.bsky.social and @fernandoperez.org's live demo of #GeoJupyter tools to help open and democratize geospatial data analysis: www.youtube.com/watch?v=c5h7... 📹More from JupyterCon: www.youtube.com/@JupyterCon
youtube.com
GeoJupyter: An Open Community for Accessible, Collaborative, and Interactive... M. Fisher & F. Pérez
YouTube video by JupyterCon
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Jeremy Tuloup @jtp.io · 24/11/2025
JupyterLab 4.5 and Jupyter Notebook 7.5 are here! 🎉 Highlights 🎁 - Enhanced notebook scrolling behavior - Native audio and video support - New Terminal search - Debugger, Notebook and File Browser improvements Check out the blog post to learn more! blog.jupyter.org/jupyterlab-4...
blog.jupyter.org
JupyterLab 4.5 and Notebook 7.5 are available!
JupyterLab 4.5 has been released! This new minor release of JupyterLab includes 51 new features and enhancements, 81 bug fixes, 44…
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Project Jupyter @jupyter.org · 20/11/2025
Project Jupyter has funded a series of community workshops for 2026, covering a broad range of subjects from Jupyter-AI to JupyterHub, Myst Markdown, and security. Check out our announcement on the Jupyter blog for more details. blog.jupyter.org/jupyter-comm...
blog.jupyter.org
Jupyter Community Workshops: Early 2026
The Jupyter Community Building Working Group is happy to announce the Jupyter Community Workshops selected for funding in early 2026. The…
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