Simon Späti 🏔️ @ssp.sh Dad. Technical Author, Data Engineer.
Data practitioner (20y) • Writing at ssp.sh since 2015.
Focused on the craft of data engineering & storytelling.
📚 vault.ssp.sh • 📖 @dedp.online
❯ #dataengineering, #opensource, #writing, #obsidian, #neovim
dame @dame.is dame.is
Creator of @anisota.net + @aturi.to. Design engineer & artist by day, 3 moths in a trench-coat by night. Queer Appalachian (they/them). Avatar syncs w/ the sky. 🏳️⚧️
🎧 Sexy to Someone by Clairo
Obsidian @obsidian.md The free and flexible app for your private thoughts. For help and deeper discussions, join our community: http://obsidian.md/community
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/
Frank Elavsky (he/him) ⌁ @frank.computer Assistant Professor of Data Science @ Cal Poly SLO
Phd in accessibility, tool-making, vis 📊 @hcii.cmu.edu. Prev: Adobe, Highsoft, Apple, Visa.
Move slo and repair things.
Disabled & making a ttrpg.
www.frank.computer
FT Visual & Data Journalism @data.ft.com The FT’s team of reporters, statisticians, illustrators, cartographers, designers, and developers work with colleagues across our newsrooms, using graphics and data to find, investigate and explain stories.
https://www.ft.com/visual-and-data-journalism
Ben Shapiro (he/him) @benshapi.ro Prof @ University of Washington
Datawrapper @datawrapper.de Enrich your stories with charts, maps, and tables – interactive, responsive, and on brand. Questions? Write us: datawrapper.de/contact-us
Hyeok Kim @hyeok.me Postdoc at UW CSE | Incoming faculty at KAIST CS | Vis, Soni, Quantum, Design, CFDC (caffeine-free diet coke) | Don't talk about CSS with me because I can't stop.
Mike Bostock @ocks.org Visualization toolmaker. Founder of Observable. Creator of D3. Former NYT Graphics. Pronounced BOSS-tock.
Internet Archive @archive.org Internet Archive is a non-profit research library preserving web pages, books, movies & audio for public access. Explore web history via the Wayback Machine. 
IEEE VIS @ieeevis.bsky.social The world's premier forum for advances in visualization and visual analytics. https://ieeevis.org/year/2026/welcome
Data Visualization Society @datavizsociety.bsky.social We are dedicated to fostering community for data visualization professionals.
Observable @observablehq.com The data visualization company
Rill Data @rilldata.com Go beyond dashboards with BI-as-code. Rill is a high-performance, AI-native alternative to legacy BI, backed by modern analytical databases.
Try Rill for free: curl https://rill.sh | sh
Evidence @evidence.dev Business Intelligence as Code
🔗 evidence.dev
😺 github.com/evidence-dev/evidence
Tauri @tauri.app Create small, fast, secure, cross-platform applications for Mac, Windows, Linux, iOS, and Android using web tech and Rust.
Peter Boncz @peterabcz.bsky.social Professor Analytical Data Systems @cwi_da and @VUamsterdam.
researcher, systems architect, educator, entrepreneur
Ai2 @ai2.bsky.social Breakthrough AI to solve the world's biggest problems.
› Join us: http://allenai.org/careers
› Get our newsletter: https://share.hsforms.com/1uJkWs5aDRHWhiky3aHooIg3ioxm
Allen School @uwcse.bsky.social The Paul G. Allen School of Computer Science & Engineering at the University of Washington educates tomorrow's innovators while developing solutions to humanity's greatest challenges.
Vite @vite.dev The build tool for the web. It's pronounced /vit/ like skeet!
https://vite.dev
Mehdi Ouazza @mehdio.com 🧡 Data Engineer at heart
🥑 DevRel @motherduck.com (Cloud-based @duckdb.org)
🎥 YouTube : https://www.youtube.com/@mehdio
✒️ Blog http://mehdio.com/blog
MyST Markdown @mystmd.org Markdown with superpowers for writing scientific 👨🔬 and technical 📈papers. #OpenSource & maintained by Project #Jupyter.
Typst @typst.app The new foundation for documents: Limitless power to write, create, and automate anything that you can fit on a page.
ClickHouse @clickhouse.com ClickHouse is the fastest open-source OLAP database ⚡
Download: http://clickhouse.com
GitHub: http://clickhou.se/GitHub
Slack: http://clickhouse.com/slack
Hugging Face @hf.co The AI community building the future! 
Netflix @netflix.com One Last Time
ACM CHI @chi.acm.org The Association for Computing Machinery's Computer-Human Interaction Conference and Steering Committee.
#CHI2026 is in Barcelona, Spain 🎨 April 13 -17.
Content managed by Social Media Chairs.
Carnegie Mellon University @cmu.edu At CMU, the (Blue)sky's the limit. United by curiosity and driven by passion, we reach across disciplines, forge new ground and deploy our expertise to make real change that benefits humankind.
Signal @signal.org Signal is a nonprofit end-to-end encrypted communications app. Privacy isn’t an optional mode, it’s the way Signal works. Every message, every call, every time. https://signal.org/donate/
@marcogorelli.bsky.social @marcogorelli.bsky.social Senior Software Engineer at Quansight Labs
Pretty focused on Narwhals and Polars these days, generally interested in dataframes and time series
marimo @marimo.io An open-source reactive Python notebook: reproducible, git-friendly, execute as scripts, share as apps!
GitHub: https://github.com/marimo-team/marimo
Discord: https://marimo.io/discord?ref=bsky
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
Wes McKinney @wesmckinney.com Principal Architect @posit.co, GP Composed Ventures, Co-founder Voltron Data. Open source: Apache Arrow, pandas, Ibis. "Python for Data Analysis" book
GitHub @github.com The AI-powered developer platform to build, scale, and deliver secure software.
Panel @panel.holoviz.org The powerful data exploration & web app framework for Python 🐍
Firefox @firefox.com The only major non-profit backed, people-first browser ️🔥
Gabor Szarnyas @szarnyasg.org Head of DevRel at DuckDB Labs
Apache Arrow @arrow.apache.org Apache Arrow is the universal columnar format and multi-language toolbox for fast data interchange and in-memory analytics.
Find more at https://arrow.apache.org/
Cloudflare @cloudflare.social Cloudflare is the world’s leading connectivity cloud, and we have our eyes set on an ambitious goal — to help build a better Internet.
Deno @deno.land A modern runtime for JavaScript and TypeScript
https://deno.com
Felt @felt.com World's best cloud-native GIS
Jeremiah Lowin @jlowin.dev CEO @prefect.io. Building FastMCP. Mostly harmless.
Fernando Pérez @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.
Zed @zed.dev A next-generation code editor that enables high-performance collaboration with AI and your team.
zed.dev
Kyle Kelley @kylekelley.bsky.social Quill 🎮 Anaconda 🐍 🧪 Jupyter & Zed Hacker ⌨️ Santa Cruz City Schools Board 🏫 Untitled.ipynb
Interactive Data Lab @idl.uw.edu Visualization & data analysis research at the University of Washington. In a prior life was the Stanford Vis Group. https://idl.uw.edu
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
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
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
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.
Jacque Schrag @jacqueschrag.com Journalist-engineer at Polygraph/The Pudding. Formerly Axios and CSIS. Builder of websites, data visualizations, and pixel cats. She/her.
Jeffrey Heer @jheer.org UW Computer Science Professor. Data, visualization & interaction. UW Interactive Data Lab, Vega, Ex-Trifacta. Sometimes Seattle, manchmal Berlin.
Hamilton Ulmer @hamilton.bsky.social 👁️📈👁️ design & eng @ MotherDuck. UI, statistics, databases. Ex Rill Data, Mozilla
Aleksander Hołyński @holynski.bsky.social UC Berkeley + Google DeepMind
holynski.org
Microsoft @microsoft.com AI, Cloud, Productivity, Computing, Gaming & Apps ☀️
Andy Pavlo @andypavlo.bsky.social Associate Prof. of Databases @ Carnegie Mellon.
NumFOCUS @numfocus.bsky.social Open Code = Better Science NumFOCUS is a 501(c)(3) nonprofit that supports and promotes world-class, innovative, open source scientific computing.
CMU Human-Computer Interaction Institute @hcii.cmu.edu We apply HCI methods to solve real-world problems. We are the Human-Computer Interaction Institute at Carnegie Mellon University. #cmuhcii
🔴 https://hcii.cmu.edu/
CMU Data Interaction Group @handle.invalid We are a research group at the Human-Computer Interaction Institute at Carnegie Mellon University (@hcii.cmu.edu). Our mission is to empower everyone to analyze and communicate data with interactive systems. 
Vega, Vega-Lite, and Altair @vega-vis.bsky.social Vega, Vega-Lite, and Altair are declarative formats for creating, saving, and sharing interactive visualizations. 📊📈
trevor manz @manzt.sh middle child, creator of anywidget.dev
building @marimo.io; prev @harvard.edu
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 ⛵️ and chocolate 🍫.
www.domoritz.de
Bluesky @bsky.app official Bluesky account (check username👆)
Bugs, feature requests, feedback: support@bsky.app