Mark Chilcott @markchilcott.bsky.social Illustrator
Wales
UK
SHOP - https://twomoonplanet.bigcartel.com/
Home Assistant @home-assistant.io Open source home automation that puts local control & privacy first. Powered by a worldwide community of tinkerers & DIY enthusiasts.
Hank Green @hankgreen.bsky.social Long Time Internet Guy
Graze Social @graze.social Own your algorithm.
👉 https://graze.social/
⚙️ Need product support? Skip the DMs: https://tinyurl.com/3hcabn8v
✨ Building something cool? Join us on Discord: https://discord.gg/Y6UkgsFx4D
roboctopus (vaporchip vol1 out! now on bandcamp!) @roboctopus.bsky.social Chiptune chiptune chiptune. Make music with Game Boys, mostly.
https://roboctopus.neocities.org/
https://roboctopus.bandcamp.com/
@roboctopus on TikTok
@roboctopus on YouTube
@roboctopus on Instagram
roboctopus@gmail.com
Generative AI @generativeai.bsky.social Building for the future, today.
Signal App: LUCKY.13
Gen AI - the AI Hub in Generative Models @genaihub.bsky.social Bringing together Gen AI researchers to collaborate on models driving impacts for science, industry & society. https://linktr.ee/genaihub
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
matplotlib @matplotlib.org Python library for creating static, animated, & interactive visualizations. Chat w/ us @ https://discourse.matplotlib.org/
Sponsored by NumFocus
PyData London @pydatalondon.bsky.social https://london.pydata.org
We run a monthly meetup and host the annual PyData London conference. PyData is an educational program of NumFOCUS, helping our community share ideas and learn from each other.
https://www.meetup.com/PyData-London-Meetup/
PyData Madrid @pydatamadrid.masto.ai.ap.brid.gy Meetup de la comunidad PyData en Madrid. ¡Únete!
Toots por @astrojuanlu
[bridged from https://masto.ai/@pydatamadrid on the fediverse by https://fed.brid.gy/ ]
PyData Southampton @pydatasoton.bsky.social https://www.meetup.com/pydata-southampton
Southampton, UK chapter of PyData- N NumPy @numpy.bsky.social
Python4DataScience @python4data.science Teaching materials for the cusy training courses on a Python-based data science workflow: https://cusy.io/seminars
PyMC Labs @pymc-labs.bsky.social The Bayesian AI Consultancy • Using PyMC to solve your most challenging data science problems • http://pymc-labs.com
@stumpy-dev.bsky.social @stumpy-dev.bsky.social 
Prefect @prefect.io Modern workflow orchestration for data and ML engineers.
Website: https://prefect.io
Code: https://github.com/prefecthq/prefect
Slack: https://prefect.io/slack
Plotly @plotly.com Plotly builds data visualization tools and platforms for analysts, engineers, scientists, and coding agents you work with.- C CuPy @cupy.bsky.social NumPy & SciPy for GPU.
🌐 https://cupy.dev/
🛠️ https://github.com/cupy/cupy
Galaxy Project @galaxyproject.bsky.social The Galaxy Project powers global life sciences analytics by turning the world’s most advanced cyberinfrastructure into a free, browser-based analysis platform for everyone. https://galaxyproject.org/
PyMC @pymc.io Probabilistic Programming and Bayesian Modeling in Python
ArviZ @arviz.bsky.social Official account for the ArviZ project. We provide #FOSS tools for exploratory analysis of #Bayesian models in #Python and #JuliaLang
www.arviz.org
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 👉 https://2i2c.org/blog
Compute! Paris @computeparis.bsky.social 🇫🇷 The Compute! Paris conference.
November 25-26 2026 • Sorbonne Université
Real Python @realpython.com Online #Python Training & Expert Community: Tutorials, Video Courses, Books, Quizzes...and More! Join 1M+ Pythonistas at http://realpython.com
scikit-learn @scikit-learn.org Machine learning in Python • Open Source
https://scikit-learn.org
SciPy Conference 2026 @scipyconf.bsky.social SciPy 2026 Conference for Scientific and Technical Computing topics in Python. Tutorials July 13-14, Conference July 15-17, Sprints July 18-19.
PyData Madrid @madrid.pydata.org Encuentros mensuales sobre datos e IA en Madrid
NetworkX @networkx.bsky.social Python package for the creation, manipulation, and study of the structure, dynamics, and functions of complex networks.
conda-forge @conda-forge.org A community led collection of recipes, build infrastructure and distributions for the conda package manager.
https://conda-forge.org
conda @conda.org conda is a multi-platform and language-agnostic open source package management and environment management ecosystem.
⇒ https://fosstodon.org/@conda
⇒ https://conda.org/
Data Umbrella @dataumbrella.org ◈ community
◈ data science & open source
◈ videos: https://youtube.com/@dataumbrella
◈ events: https://meetup.com/data-umbrella
◈ news: dataumbrella.substack.com/
MyST Markdown @mystmd.org Markdown with superpowers for writing scientific 👨🔬 and technical 📈papers. #OpenSource & maintained by Project #Jupyter.
@pydata-milan.bsky.social @pydata-milan.bsky.social 
Python Software Foundation @python.org The nonprofit organization behind the Python programming language. For help with Python code: http://python.org/about/help/
On Mastodon: @ThePSF@fosstodon.org
Dask @dask.org Dask natively scales Python
Dask provides advanced parallelism for analytics, enabling performance at scale for the tools you love
https://dask.org
Polars @pola.rs Dataframes powered by a multithreaded, vectorized query engine, written in Rust.
PyData Prague @pydataprague.bsky.social A chapter of PyData in the beatiful city of Prague. http://pydata.cz
Project Jupyter @jupyter.org Multi-language interactive computing environments. Jupyter Notebook, JupyterLab and related projects – @mentions not monitored. Open issues on GitHub.
Pyodide @pyodide.org Pyodide is an open source Python distribution for the browser and Node.js based on WebAssembly/Emscripten.
Find us at https://pyodide.org 🐍
Contribute at https://github.com/pyodide/pyodide 🤗
Also, find us on Mastodon: https://fosstodon.org/@pyodide
PyTorch @pytorch.org Tensors and neural networks in Python with strong hardware acceleration. PyTorch is an open source project at the Linux Foundation. #PyTorchFoundation
pytorch.org
Andrew Weeks @meloncholy.bsky.social Product data scientist in fintech. Mostly lurking while I try to find my voice again. I help run PyData London.
Pietro Peterlongo @pietroppeter.bsky.social Data Scientist at 🏄AgileLab. 🐍Python/PyData Milan organizer. 🐙Recurser. Data Science, Programming, Python, Nim, (programming) languages, Math, words. Magari anche in Italiano
PyData Global @pydata.bsky.social The PyData Global Conference is where users, contributors, and newcomers can share experiences to learn from one another and grow together. Want to meet the community? Join our Discord!
https://discord.gg/CjspHbE9xe
PyCon DE & PyData @pyconde.bsky.social Join 1500 🐍 🤓 🦄 at our annual Python & PyData conference 23.-25.04.2025 in Darmstadt / Frankfurt. https://pycon.de
PyCon US @pycon.us PyCon US is a community-focused conference for Python users and developers. Join us in Long Beach, CA from May 13 - May 19, 2026!- L @langgraph.bsky.social @langgraph.bsky.social
LangChain @langchain.bsky.social ⚡️Build context-aware, reasoning applications ⚡️
Dr. Zachary Rubin @rubinallergy.bsky.social Pediatrician
Allergist/Immunologist
Bow tie aficionado
Hula hoops!
🚫Med advice
Jeff Dean @jeffdean.bsky.social Google Chief Scientist, Gemini Lead. Opinions stated here are my own, not those of Google. Gemini, TensorFlow, MapReduce, Bigtable, Spanner, ML things, ...
Electronic Frontier Foundation @eff.org We're the Electronic Frontier Foundation. We're a nonprofit that fights for your privacy and free speech online. Find all of EFF's social media accounts at eff.org/social.
Data Elixir @dataelixir.com Data Elixir is a weekly newsletter with curated data science picks from around the web. Subscribe at dataelixir.com and follow us here for selections between issues. Covering machine learning, data visualization, analytics, and strategy. 
Amstat-American Statistical Association @amstatnews.bsky.social The American Statistical Association, the world’s largest community of statisticians and second oldest, continuously operating professional society in the US.
Randall Munroe @xkcd.com 
Paul Goldsmith-Pinkham @paulgp.com Yale SOM professor & Bulls fan. I study consumer finance, and econometrics is a big part of my research identity. He/him/his
ᴅᴀɴɪᴇʟ ᴍɪʟʟɪᴍᴇᴛ ✡️☮️❤️ @dlmillimet.bsky.social Robert H. & Nancy Dedman Trustee Prof of Econ at @SMU, husband, son, proud papa, baseball junkie, animal enthusiast, proudly woke.
http://people.smu.edu/dmillimet/
https://dlm-econometrics.blogspot.com/
Scott Cunningham @causalinf.bsky.social 47 year old man. 
Malte Elson @malte.the100.ci Professor at @unibe.ch
Meta Science ⸾ Science Trustworthiness Assessments ⸾ Research Methods ⸾ IT Security & Privacy ⸾ Technology Effects ⸾ Research Memes
https://the100.ci & @error.reviews
Ruben C. Arslan @ruben.the100.ci Bayescurious evidence enthusiast at the100.ci
Topics: evolution, ovulation, mutation, intelligence, personality, sexuality, R, open science & source tools. https://rubenarslan.github.io/
Michel Nivard @michelnivard.bsky.social Professor of Genetic Epidemiology, University of Bristol at: uob-ieu@bsky.social
Jermain Kaminski @jermainkaminski.bsky.social Assistant Professor in Entrepreneurship & Innovation 🇳🇱 Maastricht University. Writing about entrepreneurs and (causal) machine learning. UWH, RWTH, MIT. Co-Founder http://causalscience.org, Team @AOM_TIM.
Steve Berry @steveberry.bsky.social Empirical study of firms and markets, including models used for policy analysis. Yale Econ, Cowles, and faculty director of the Tobin Center.
Robert (Bob) Kubinec @rmkubinec.bsky.social Political scientist @ Texas A&M Bush School of Government. Interests: business politics/corruption, Middle East, measurement, Bayesian statistics
The Bayesian Hitman: https://a.co/d/e4QmtKo
Website: www.robertkubinec.com
Giovanni Mellace @giovannimellace.bsky.social Professor at the University of Southern Denmark and chairperson of the Econometrics and Data Science research platform. I work on Causal Inference.
Naftali Weinberger @dagophile.bsky.social Interested in all things causal modeling. Ongoing projects on causal analyses of discrimination and on causation in dynamical systems.
Riccardo Fusaroli @fusaroli.eurosky.social Cognitive Science at Aarhus Uni. Curious about social interactions, symbolic behaviors, and meta-science. Focus on stats, computational modeling, machine learning, complex systems, language, exp semiotics and neuropsychiatric conditions. He/They.
Dave Vanness @djvanness.bsky.social Economist. Health policy and decision-making methods. Advocate for high quality, affordable #HigherEd. Georgetown & UW-Madison alum. These are my personal views and not those of my employer.
https://orcid.org/0000-0002-9790-2988
Michael P. Grosz @mp-grosz.bsky.social Professor of Psychological Assessment at HMU Health & Medical University Potsdam (Germany). Research interests: personality, social status & causal inference
Felix Thoemmes @felixthoemmes.bsky.social 
Francisco Rodriguez-Sanchez @frodsan.bsky.social Computational Ecologist. Associate Professor @unisevilla.us.es. Ecology, biogeography, statistics, rstats, GIS, science.
Here to learn, share knowledge, and try to change the world too.
https://frodriguezsanchez.net
Jouni Helske @jounihelske.bsky.social Academy Research Fellow at INVEST (University of Turku), PI of CAUSALTIME project. Bayesian statistics, longitudinal causal inference, hidden Markov and state space models in general. Computational statistics in social sciences and various other things. ♾️
Luis D. Verde Arregoitia @liomys.mx 🇲🇽 - macroecology, evolution, conservation, spatial. #rstats, data. mammalogist. tidyverse and 🔨 instructor
François Michonneau @francoismichonneau.net 👨💻 Solutions Engineer @posit.co
🧑🏫 Previously Voltron Data, The Carpentries
🌍 Global, remote, inclusive leadership
📈 Empowering others to get the most out of their data
📦 #Rstats developer
🏡 Bed & Breakfast host
Jonathan Keane @jonkeane.bsky.social engineering, data, photos, language, justice
• they/them • all opinions are my own • also: @jonkeane@mastodon.social
Lukas Wallrich @lukaswallrich.bsky.social Organisational Psychologist, Open Science Enthusiast - based at Birkbeck Business School, London
Marc Choisy @mchoisy.bsky.social Head of Mathematical Modelling
Oxford University Clinical Research Unit
Ho Chi Minh City, Vietnam
Mirna Vazquez Rosas Landa @mirnavrl.bsky.social A very curious and charismatic microbiologist
Haydée Svab @hsvab.bsky.social Executive Director of Open Knowledge Brasil | Smart Cities & GovTech - Manager | Consultant
Jimmy Zelinskie @jimmy.zelinskie.com Cofounded @authzed.com. Exited Red Hat, CoreOS.
I build distributed systems, databases, authorization systems, containers, and businesses. NYC transplant in SF.
Jordan Lewis @largedatabank.com Sr Director of engineering @ Cockroach Labs.
Brooklyn
Check me out: https://largedatabank.com
The old site: https://twitter.com/largedatabank
authzed @authzed.com Authorization that scales
👷♂️ Creators of https://spicedb.io
💫 Inspired by Google's https://zanzibar.tech
🧡 YC W21
Read about how OpenAI securely connects enterprise knowledge with ChatGPT by using AuthZed: https://authzed.com/customers/openai
Barak Michener @barakmich.bsky.social 
Prometheus Monitoring @prometheus.io The leading open-source monitoring solution - prometheus.io
CockroachDB @cockroachdb.bsky.social Up for anything
🪳 Meet Cockroach Labs: https://cockroa.ch/db
🎓 Learn for free: https://cockroa.ch/u
🎧 Listen: https://cockroa.ch/cast
Heidi Howard @heidihoward.bsky.social 
Electrified Filth @ak47.io tylerneely.com
Richard Bishop @richardb.bsky.social Distributed systems, databases, and the foundational primitives for better (more robust, efficient, accessible) computing.
Currently at Snowflake building managed Postgres. Formerly Crunchy Data and AWS.
Mark Brown @markjbrown.com I work on the Azure Cosmos DB team.
❤️ Distributed systems and databases.
Helping developers design for infinite scale.
Brent Ozar @brento.bsky.social I make databases go faster. I love teaching, travel, laughing, and collecting vintage sports cars. Las Vegas. He/him, pan.
@dbsmasher.com @dbsmasher.com All sorts of SRE things. Breaker of all things. Source of the #botrosd hashtag. Professional finder of problems.
Author of High Performance MySQL 4th edition
Andrew Atkinson @andyatkinson.com Software Engineer, Author, High Performance PostgreSQL for Rails
andyatkinson.com/pgrailsbook
PlanetScale @planetscale.com The database platform built for scale. Postgres and Vitess/MySQL.
https://planetscale.com
Discord: http://discord.gg/pDUGAAFEJx
Status: http://planetscalestatus.com
Seny Kamara @senykamara.com I design encryption algorithms for a living but am a Hip Hop scholar at heart. Former CS professor at Brown & research scientist at Microsoft. I currently lead research at MongoDB. I think about how data, algorithms, power and culture intersect
MariaDB @mariadb.bsky.social We are the company behind MariaDB, the fastest growing open-source relational database. Download MariaDB at http://mariadb.com/downloads.
Lili Cosic @lilicosic.com 👩🏻💻 Senior Database Engineer @InfluxData working on InfluxDB v3 Enterprise.
I enjoy talking about databases, observability and good food.
Previously @ HashiCorp, Red Hat.
Now in Berlin 🇩🇪 from 🇸🇮
Claire Giordano ✨ @clairegiordano.bsky.social Love sailing ⛵️ in Greece, #PostgreSQL, open source, NH, POSETTE: An Event for Postgres #PosetteConf, chocolate 🐕 labs, my work @ Microsoft, the #TalkingPostgres #podcast—& taking pics with my phone. Not necessarily in that order. Opinions are my own.
Glauber Costa @glaubercosta.bsky.social Former Linux Kernel, ScyllaDB, Datadog - storage, virtualization, low level stuff.
Founder/CEO at https://turso.tech