MotherDuck @motherduck.com Making analytics fun, frictionless and ducking awesome with an unorthodox data warehouse for the post big data era based on @duckdb.org in collab with DuckDB Labs
Jason Forrest @jasonforrest.bsky.social JasonForrestAgency.com, Data Vandals, Editor-in-chief of Nightingale, Electronic Musician, Ex-McKinsey. Contact & more: http://jasonforrestftw.com
Dr. Heather Hinam π π¨π¦ @secondnaturemb.bsky.social Naturalist, writer, artist, and educator with a Ph.D. in Ecology. I make interpretive signs, illustrations, murals, and books. Sometimes, I chase polar bears and belugas. #scicomm #sciart http://www.discoversecondnature.ca
Chris Holmes @opencholmes.bsky.social Working towards a Cloud-Native Geospatial future, through involvement in GeoParquet, Planet Labs, Taylor Geospatial Engine, Fiboa, STAC & Source Cooperative.
Hugo van Kemenade @hugovk.dev Python 3.14 & 3.15 release manager, core developer, Sovereign Tech Fellow, PSF Fellow, open-source maintainer, PEP editor, NaNoGenMo organiser, winter bicycler
PyCon AU @pyconau.bsky.social Australia's conference for the Python programming community. Join us in Brisbane, 26-30 August 2026!
https://pycon.org.au/
Sean Brodrick @seanbrodrick.bsky.social In a world gone mad with chaos and blood, one man stands alone against the forces of evil. That man is Sean Brodrick.
"No truce with kings!"
Stocks. Gold. Silver. Energy. Horror. Humor. Other Old Man Crankypants stuff. I've got friends everywhere. #EconSky
Ray Mairlot @raymairlot.bsky.social Freelance 3D Artist working in Blender 3D #b3d.
Portfolio: www.raymairlot.co.uk
Threads: www.threads.net/@raymairlot
NASASpaceflight.com @nasaspaceflight.com Official Account of NSF. News, videos, and community for spaceflight enthusiasts since 2005.
NSF is not affiliated with NASA, initials used with permission.
Paul Mainwood @paulmainwood.bsky.social 
VoilΓ : Francis Gagnon @chezvoila.com Information design and data visualization studio focused on the environment, social development, and governance.
Montreal (since 2013).
English and French
Interactives, dashboards, reports, presentations, training
Posts by Francis Gagnon, founder
Arjun Verma @arjxn-py.bsky.social Scientific Software Engineer @quantstack.bsky.social
Loves Open Source, 3D, GIS & collaborating
Institut Pasteur | 130 years of biomedical research @pasteur.fr π©βπ¬ The Institut Pasteur is a leading global biomedical research institute.
π¬ Explore with us the frontiers of biomedical research
π§ͺ Follow us to uncover groundbreaking discoveries
π Join a community passionate about progress and open science
napari @napari.org n-dimensional image viewer for Python
Carl T. Bergstrom @carlbergstrom.com Professor, UW Biology / Santa Fe Institute
I study how information flows in biology, science, and society.
Book: *Calling Bullshit*, http://tinyurl.com/fdcuvd7b
LLM course: https://thebullshitmachines.com
Corvids: https://tinyurl.com/mr2n5ymk
he/him
Katharine Hayhoe @katharinehayhoe.com climate scientist
posts 100% my own
π¨π¦ is my home
distinguished professor & chair, Texas Tech
chief scientist, The Nature Conservancy
board member, Smithsonian NMNH
advisor, Lawson Climate Inst UofT
alumna, UToronto and UIUC
author, Saving Us
2i2c @2i2c.org A non-profit dedicated to helping communities create and share knowledge with open infrastructure for interactive computing. We work in the open, follow along with our blog here π https://2i2c.org/blog
Wu Yiming β
Use OurPaint @chengdulittlea.bsky.social I'm an artist
Oh I also write programs
https://ChengduLittleA.com
My art feed! https://bsky.app/profile/did:plc:kyypaae3znh7utpsdzlbvppn/feed/aaaay7f5qvf6s
Skrub @skrub-data.bsky.social skrub is a Python library to ease preprocessing and feature engineering for tabular machine learning.
Our long-term goal is to directly connect database tables to machine learning estimators.
https://skrub-data.org
https://discord.gg/ABaPnm7fDC
DuckDB @duckdb.org DuckDB is an analytical in-process SQL database management system. "DuckDB" and the DuckDB logo are registered trademarks of the DuckDB Foundation.
Bloomberg News @bloomberg.com The first word in business news.
Newsletters: http://bloom.bg/newsletters
Podcasts: http://bloom.bg/podcasts
The Big Take podcast: http://trib.al/jtoXfuT
Lynn Cherny @arnicas.bsky.social Into creative ML/AI, NLP, data science and digital humanities, narrative, infovis, games, sf & f. Consultant, ds in Residence at Google Arts & Culture. (Lyon, FR) Newsletter arnicas.substack.com.
Simon Willison @simonwillison.net Independent AI researcher, creator of datasette.io and llm.datasette.io, building open source tools for data journalism, writing about a lot of stuff at https://simonwillison.net/
David KouΕil @dvdkouril.xyz Data visualization in biology and beyond.
Postdoc @ Harvard Medical School.
Previously: PhD at TU Wien.
davidkouril.com
Carlos Scheidegger @cscheid.net Engineer at Posit, technical lead for quarto.org
Touching grass by learning Brazilian music. feet in Minneapolis, heart in some random Brazil beach town I don't even know yet
On hiatus because 2026. DMs open but do please try to be normal out there
Lukas Hermann @lukashermann.com datavis & graphics. he/him
Frank Elavsky (he/him) β @frank.computer Assistant Professor of Data Science @ Cal Poly SLO
Accessibility, tool-making, visualization π
PhD from @hcii.cmu.edu. Prev: Adobe, Highsoft, Apple, Visa.
Move slo and repair things.
Disabled & making a ttrpg.
www.frank.computer
Andrew Gallant @burntsushi.net I love to code.
https://burntsushi.net
Dominik Moritz @domoritz.de Visualization, data, AI/ML. Professor at CMU (@dig.cmu.edu, @hcii.cmu.edu) and researcher at Apple. Previously @idl.uw.edu. Also sailboats β΅οΈ and chocolate π«.
www.domoritz.de
Hadley Wickham @hadley.nz R, data, π, πΈ, π. He/him.
Paul Butler @paulbutler.org I build jamsocket.com and write digest.browsertech.com
Anthony Fu @antfu.me A ship in harbor is safe, but that is not what ships are built for.
creator β @sli.dev β’ @unocss.dev β’ @vueuse.org β’ @vitest.dev β’ elk.zone
core team β @nuxt.com β’ @vite.dev β’ vuejs.org
maintainer β @shiki.style β’ eslint.style
he/him β antfu.me
Sarah Drasner @sarahedo.bsky.social Opinions my own. https://sarah.dev
Distinguished Engineer @ Google, Chrome
Formerly Google Core Infrastructure
Formerly Vue Core β’
Frontend Masters teacher β’
O'Reilly Author β’
https://www.engmanagement.dev/
https://github.com/sdras
Jon Kuperman @jonkuperman.com TC39 - Signals - Source Maps - TS/JS @Bloomberg. Previously I did web at Adobe and Twitter.
Opinions are my own.
Brandon Dail @brandondail.com Staff Engineer at Discord working on Design Systems, Accessibility, Other Stuffβ’οΈ Collage & generative plotter artist π
Nadieh Bremer @nadiehbremer.com Award-winning Data Visualization Designer & Data Artist | Founder of Visual Cinnamon | Graduated Astronomer β¨ | Author of "CHART" & "Data Sketches" | π³π±
VisualCinnamon.com
Shirley Wu @shirleywu.studio chinese-american artist, software engineer, dataviz designer, keynote speaker, published author && a work-in-progress learning to take up space β¨
π shirleywu.studio
Jacob Schreiber @jmschreiber91.bsky.social Studying genomics, machine learning, and fruit. My code is like our genomes -- most of it is junk.
Assistant Professor UMass Chan
Previously IMP Vienna, Stanford Genetics, UW CSE.
Ryan Cavanaugh @searyanc.dev Making TypeScript for 10 years running
Peter Wπ€ @wang.social Anaconda Founder&Head of AI; created the PyData movement, PyScript, Bokeh, Datashader; Fellow @ Python Software Foundation; Center for Humane Tech
Game~B; Physics, Cybernetics, Memetics. A student of the human condition.
Memento mori
__Alex Monahan__ @a13x.bsky.social DuckDB hype man, MotherDucker (I work at MotherDuck!), SQL nut, Pythonista, reluctant JS dev
Mark Riedl @markriedl.bsky.social AI for storytelling, games, explainability, safety, ethics. Professor at Georgia Tech. Director of ML Center at GT. Time travel expert. Geek. Dad. he/him
Will Usher @willusher.io Scivis, raytracing and graphics at https://www.luminarycloud.com/ by day. ChameleonRT (http://chameleonrt.com) & WebGPU by night
Site: https://www.willusher.io/
@willgfx@mastodon.social
Simon Willison @simon.fedi.simonwillison.net.ap.brid.gy Open source developer building tools to help journalists, archivists, librarians and others analyze, explore and publish their data. https://datasette.io [β¦]
[bridged from https://fedi.simonwillison.net/@simon on the fediverse by https://fed.brid.gy/ ]
Jeffrey Heer @jheer.org UW Computer Science Professor. Data, visualization & interaction. UW Interactive Data Lab, Vega, Ex-Trifacta. Sometimes Seattle, manchmal Berlin.
Al Sweigart @alsweigart.bsky.social Author of "Automate the Boring Stuff with Python" and other books. Mostly harmless. Last name rhymes with "why dirt." he/him
Cheuk Ting Ho @cheuk.dev #Dev π₯ for #FOSS. #ThePSF fellow and director. Public speaker. #ηη©ε₯³ε π Opinions are mine.
https://linktr.ee/cheukting
Ned Letcher @ned.sh Data science, AI/ML, analytics, visualisation. Naarm/Melbourne @thoughtworks, #dataBS, #Python, #NLP, #DuckDB, & assorted whimsical miscellania
Hynek Schlawack @hynek.me Pythonista & PSF fellow ππ, Gopher πΉ, blogger π, speaker π’, YouTuber πΊ. β€οΈ nuance & outcomes, π£οΈπ¨πΏπ©πͺπΊπΈ
β’ https://hynek.me/
β’ https://github.com/hynek
β’ https://www.youtube.com/@The_Hynek
β’ https://mastodon.social/@hynek
β’ https://x.com/hynek
Paige Bailey (webpaige.dev) @dynamicwebpaige.bsky.social β¨ Keep it simple, make it scale. AI should be about empowering users and building understanding. π©βπ» AI Developer Experience @ Google DeepMind, ex-Github, ex-Google
Vicki @vickiboykis.com Founding list[float] engineer. Recsys. Personalization. Infra. Systems. Normcore code. Nutella. Vectors. Words. Vibes. Bad puns (soon).
https://vickiboykis.com/what_are_embeddings/
Brad @bradsbrown.dev Dev (Python, mostly), dad, Baylor Bear, student pilot. I read too much.
Donald Stufft @dstufft.dev pip // PyPI // Python // cryptography
I am perpetually caremad.
I care a lot about security.
Agitator and professional rabble rouser
Abby Cabunoc Mayes @abbycabs.dev Open source at GitHub, SustainOSS, and OpenJS
Chris Albon @chrisalbon.com 
Jeremy Howard @howard.fm https://Answer.AI & https://fast.ai founding CEO; previous: hon professor @ UQ; leader of masks4all; founding CEO Enlitic; founding president Kaggle; various other stuffβ¦
Cassidy @cassidoo.co Making memes, dreams, & software!
Sr. Director of Dev Advocacy at GitHub. Married to a dweeb and mom to a nerdy toddler + baby combo. She/Her βοΈ CHI π
Subscribe to my newsletter!
cassidoo.co/newsletter
leah wasser @leahawasser.bsky.social Executive Director & Founder of @pyOpenSci
* open source and open science enthusiast
* stravalib & all-contributors bot maintianer
* Rescue dog mom
* Plant nerd
* All things trail, mountain and crossfit
* Calisthenics: seeking the perfect bar muscleup.
Tom Ballinger @ballingt.com Duboce Triangle in SF
ballingt.com
Fernando PΓ©rez @fernandoperez.org Open source, open science, AI in science for earth/ice and healthcare. IPython creator, @projectjupyter.bsky.social and 2i2c.org co-founder.
Prof @ UC Berkeley Stats, director of @ucbids.bsky.social, co-director @schmidtdse.bsky.social; LBL scientist.
Pete Vilter @petevilter.me Working on grid interconnection at Pearl Street Technologies. Prev databases and things at RelationalAI, Bubble, Cockroach.
https://petevilter.me
Camille Fournier @skamille.themanagerswrath.com she/her. Author, manager, distributed systems engineer, etc etc, my latest book Platform Engineering is available now! https://amzn.to/4eUz5zB
Sarah Krasnik Bedell @sarahkb.bsky.social Growth marketer & data engineer. Currently growth @ Prefect, prev data @ Perpay.
π VT, β·οΈ & β΅οΈ
sarahsnewsletter.substack.com
colton @colton.boo Data Engineering / Music / Photography / Tinkering
cmpadden.github.io
Tim Hopper @tdhopper.com machine learning infrastructure at spotify
Joe Reis @joereis.bsky.social Data nerd, βrecovering data scientistβ, author, podcaster, occasional athlete
Pete Skomoroch @peteskomoroch.bsky.social Investor and AI startup founder. Focus: AI, LLMs, LifeOps, AI Product Management. Was founder @SkipFlag. EIR @Accel. Data Science & ML @LinkedIn, @AOL & @MIT
joelgrus @joelgrus.bsky.social you know what I blame this on the breakdown of? society
Abe Gong @abegong.com geek dad with a clipboard
founder @ Katabase and Great Expectations
operating advisor @ Bessemer VP
data, ai, startups, dev tools, systems thinking
storytelling, community, creativity
blog.abegong.com
Julia Evans @b0rk.jvns.ca programming and exclamation marks
blog: jvns.ca
zines: wizardzines.com
Chris Holdgraf @choldgraf.com Executive Director of @2i2c.org
πͺ Jupyter Project distinguished contributor
π¬ mybinder.org and hub.jupyter.org team
π jupyterbook.org mystmd.org and executablebooks.org
open communities π
open infrastructure π»
open science π§ͺ
Armin Ronacher @mitsuhiko.at Creator of Flask β’ earendil.com β₯οΈ writing and giving talks β’ Excited about AI β’ Husband and father of three β’ Inhabits Vienna; Liberal Spirit β’ βmore nuanced in personβ β’ More AI content on https://x.com/mitsuhiko
More stuff: https://ronacher.eu/
Ned Batchelder @nedbat.com Python, Boston, mathy fun, juggling, autism parenting. https://nedbat.com
Brett Cannon @snarky.ca #Python core developer who also works on packaging; works on Python stuff at #Microsoft (although this is a personal account). Proudly #Canadian.
Posit @posit.co We make free, open-source software for data scientists like the RStudio IDE.
We're formerly known as RStudio. You can always download our open-source IDE here. https://posit.co/download/rstudio-desktop/
Project Jupyter @jupyter.org Multi-language interactive computing environments. Jupyter Notebook, JupyterLab and related projects β @mentions not monitored. Open issues on GitHub.
Mike Bostock @ocks.org Visualization toolmaker. Founder of Observable. Creator of D3. Former NYT Graphics. Pronounced BOSS-tock.
Jake VanderPlas @jakevdp.bsky.social Write code. Mostly Python.
GaΓ«l Varoquaux @gaelvaroquaux.bsky.social Research & code: Research director @inria
βΊData, Health, & Computer science
βΊPython coder, (co)founder of scikit-learn, joblib, & @probabl.bsky.social
βΊSometimes does art photography
βΊPhysics PhD
Min RK @minrk.bsky.social Jupyter(Hub), kids, cats, food. Protect trans kids.
Will McGugan @willmcgugan.bsky.social CEO / Founder of https://textualize.io Hyperborean Python expert, author, humanist, husband, sometimes wildlife photographer. Carbonara aficionado. He/him. 
Joe Hamman @jhamman.bsky.social Climate scientist, engineer and human. Co-founder/CTO @earthmoverHQ. @xarray_dev / @pangeo_data dev. Formerly
@carbonplanorg, @NCAR_Science, and @uw_cee. He/him.
Rowan Cockett @row1.ca I talk about computational #openscience communication and science publishing. On the jupyterbook.org & @mystmd.org teams, co-founder of @curvenote.com & @continuous.foundation.
MyST Markdown @mystmd.org Markdown with superpowers for writing scientific π¨βπ¬ and technical πpapers. #OpenSource & maintained by Project #Jupyter.
:probabl. @probabl.ai Own Your Data Science
https://probabl.ai
Hamel Husain @hamel.bsky.social evals evals evals. https://evals.info
Carol Willing @willingc.bsky.social Python is foreverπ
Tania Allard @ixek.bsky.social Director Quansight Labs
β¨ MLOps, OSS, Research Software Engineering
π GDE - ML @ Google | PSF fellow and vice-chair of the board of directors
Pyladies Global Council
π± Disability justice activist, feminist, neurodivergent, developer 
Jeremy Tuloup @jtp.io Technical Directory at QuantStack, Project Jupyter Core Developer & Distinguished Contributor - https://github.com/jtpio - jtp.io
Kyle Kelley @kylekelley.bsky.social Principal Engineer @anacondainc.bsky.social, nteract lead, maker of document engines and runtimes π² π« πΆπ»π²ποΈ π
Albert Villanova del Moral @albertvillanova.bsky.social Machine Learning Engineer @ Hugging Face
Silvio Traversaro @traversaro.bsky.social Robotics Applied Scientist
@ami_iit @iCub @IITalk .
Robotics Software @condaforge @RoboStack .
Phil Elson @pelson.bsky.social Scientific Python engineer & problem solver. Builder of communities and tools, including SciTools (Iris, cartopy), conda-forge, and former maintainer of matplotlib. Working on accelerator controls at CERN.
Alexander Rose @asrose.bsky.social Scientific software engineer & computational structural biologist, #molstar web molecular graphics developer.
Martin Renou @martinrenou.bsky.social Technical Director @quantstack.bsky.social. Believe in open-source software and open-science. Love computer graphics and Python.
QuantStack @quantstack.bsky.social A team of open-source maintainers and engineers providing solutions and support for open-source projects used by millions worldwide. #Jupyter, #condaforge, #Mamba, #ApacheArrow, #Xtensor, and more.