RANDOM.ORG @random.org True random number service, based on atmospheric noise.
Zellij_dev @zellij-dev.bsky.social Hi there! I'm Zellij, a terminal workspace with batteries included.
Golem @golemde.bsky.social Wir schreiben nicht nur über IT, Technik und Wissenschaft, wir begeistern uns auch für sie. Wir fassen Technik gern an, probieren sie aus, spielen mit ihr und erklären sie mit journalistischem Anspruch.
Scott Jenson @jenson.org UX Strategy: Apple System 7, Newton, & Apple HI guidelines. UX Director Symbian, managed Mobile UX at Google, creative director frog design SF. Head of Product for two startups. Google Physical Web + Android UX research. Semi-retired
Local-First Conf @localfirstconf.com Connect with a rapidly-growing Local-First community. Join us for our third edition 12-14th of July 2026 in Berlin. www.localfirstconf.com
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
Entire @entire.io 42 is the answer to everything, but don’t panic. A new developer platform is coming. entire.io
Kilo @kilocode.ai Kilo is an open-source all-in-one agentic platform. 3M+ Kilo Coders. 500+ models. No markup.
Pydantic @pydantic.dev The end-to-end AI engineering stack
AI observability at scale without fail with Pydantic Logfire. Iterate with Pydantic Evals. Build type-safe agents with Pydantic AI. Track costs with AI Gateway.
Cat Hicks @grimalkina.bsky.social Author of The Psychology of Software Teams: https://www.drcathicks.com/#book
she/her 🏳️🌈
Catharsis: https://catharsisinsight.com/
Host at: https://www.changetechnically.fyi/
daniel holmgren 🫠 @dholms.at head of protocol @ bsky 🌅
Kedro @kedro.org An opinionated Python framework for creating reproducible, maintainable and modular machine-learning code.
https://github.com/kedro-org/
@metactf.bsky.social @metactf.bsky.social 
Determinate Systems @determinate.systems Bringing Nix ❄️ to the enterprise to empower fearless software delivery 💪 https://determinate.systems
dystroy @dystroy.eurosky.social 🦀 🇫🇷 🇪🇺 🇺🇦
FOSS author: broot, dysk, bacon, rhit, miaou, safecloset, lazy-regex...
Living in Lyon, France
https://dystroy.org
I'd like to post only about open-source but there's a world around us.
Visual Studio Code @vscode.dev The open source AI code editor
Spark @sprk.so The shortform social app with AT Protocol at its core.
Now in open beta: sprk.so
Built with love in Brooklyn, New York.
Questions? Thoughts? Cupcake recipes? hello@sprk.so
Roscoe Rubin-Rottenberg @knotbin.com engineer, 16, brooklyn
consumer of the firehose
co-founder @sprk.so
jes olson @j3s.sh i make cute weird things
angel investor @tangled.org
👁 Seattle
Mitchell Hashimoto @mitchellh.com 
isabel @isabelroses.com smart enough to know better, dumb enough to do it anyway
22 | she/her
meta @metaend.eth.xyz Contact https://metaend.qstorage.quilibrium.com
@woodpecker-ci.org @woodpecker-ci.org 
Michał (Mike) Krassowski @krassowski.bsky.social Maintainer of JupyterLab. DPhil in omics/endometriosis - I miss research. Thinking how to leave the world a better place.
Eric Charles @echarles.net Founder of Datalayer https://datalayer.ai
@fintohaps.bsky.social @fintohaps.bsky.social 
Radicle @radicle.dev The sovereign forge.
https://radicle.dev
OpenStreetMap Ops Team @operations.openstreetmap.org 🌉 bridged from ⁂ https://en.osm.town/@osm_tech, follow @ap.brid.gy to interact
William Woodruff (1.3.6.1.4.1.55738) @yossarian.net skeeting in accordance with the universal law.
yossarian.net / blog.yossarian.net
Julio @juliobs.com https://juliobs.com/
Kelsos @kelsos.bsky.social Open Source software developer. MusicBee remote, Full-stack rotkiapp, Android Hobbist and Vue.js dev
Max Hils @hi.ls mitmproxy developer, making cloud more secure at Google. TLS, web, networks, and open source.
Mostly active on http://fedi.hi.ls these days, mirroring announcements here.
dad (aka miguel) @aka.dad designer && atprotobro — views are my own (duh)
building: @offprint.app, @protobase.at, @pds.rip, and @unthread.at
maintaining: @standard.site
mine: @bunnn.ee
https://ko-fi.com/akadad
https://signal.me/#u/akadad.66
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/
Kenneth Hoste (boegel) @boegel.bsky.social https://ugent.be/hpc | https://github.com/boegel | https://linkedin.com/in/kenneth-hoste | https://easybuild.io | https://eessi.io | https://multixscale.eu | https://my-eurohpc.eu | family | community | HPC | FOSS | loud music | stickers | 🍻 beer |
Sarah Perez @sarahp.bsky.social TechCrunch reporter and editor. Used to be @sarahintampa / @sarahperezTC on Twitter. Tips? Signal @sarahperez.01 / sarahp@techcrunch.com.
Furkan Onder @furkanonder.bsky.social Python Triage Member | Focusing on CPython #LKD #Python #ArchLinux #Django #eBPF
https://github.com/furkanonder/
@organicmaps.bsky.social @organicmaps.bsky.social 
Mervin Fansler @mfansler.bsky.social Postdoc in Cvejic Group, BRIC, Københavns Universitet. PhD from Mayr Lab at Sloan Kettering Institute. Reproducible research enthusiast. Conda Forge R Team. Creator of scUTRquant.
@variomedia.de @variomedia.de 
Henrique Dias @hacdias.com Open source maintainer. Software engineer focused on digital identity, web technology and user agency. File Browser creator. Home barista. Occasional photographer. 🇪🇺 🏳️🌈
🏠 https://hacdias.com
📍 The Netherlands- A Agriya Khetarpal @agriyakhetarp.al [I'm only sometimes active here] Luddite • Full-time Pythonista, part-time poet • @pyodide.org maintainer • @scipy.in organiser • OSS dev working on Scientific Python • 24 years old • Trying to change the world, one commit at a time.
goose @opensource.block.xyz local open source AI agent that automates complex developer tasks, is LLM-agnostic, integrates with MCP, and is available in both Desktop and CLI
AISLER @aisler.net Making Hardware less hard for everyone. 🏳️🌈🏳️⚧️🇪🇺
Will McGugan @willmcgugan.bsky.social CEO / Founder of https://textualize.io Hyperborean Python expert, author, humanist, husband, sometimes wildlife photographer. Carbonara aficionado. He/him. 
Mike Kasprzak❓🦈🍁 @distraction.engineer Former professional GameDev (1999+); IGF Finalist (2009); Retro, DIY, Repair, C64 nerd; AKA PoV, PoVRAZOR, VA3POV 📻; They/them; 🍁
Caretake and co-creator of the @ludumdare.com online game jam
Empathy is punk! Trans rights! 🏳️⚧️💜🤘
Henry Schreiner @henryiii.bsky.social Princeton RSE. Scikit-HEP, Scikit-build, PyPA/build, PyPA/cibuildwheel, pybind11, CLI11, & plumbum. Also on @henryiii@fosstodon.org and @henryschreiner3 (X).
Quad9 @quad9dns.bsky.social 9.9.9.9 Security, Privacy, Performance.
Support Requests: support@quad9.net
Quad9 Status: https://uptime.quad9.net
Filippo Valsorda @filippo.abyssdomain.expert @geomys.org founder / RC F'13, F2'17
Cryptogopher / Go cryptography maintainer
https://filippo.io / https://github.com/FiloSottile
https://mkcert.dev / https://age-encryption.org
https://sunlight.dev / https://filippo.io/newsletter
Yihui Xie @yihui.org https://yihui.org
Jim Crist-Harif @jcristharif.bsky.social 🐍 OSS
Proud Minnesotan. Jewish. Dad. He/Him.
MCP Developers Summit @mcpdevsummit.ai Join us April 2-3 to talk anything and everything about developing with the Model Context Protocol (MCP). Join us at https://events.linuxfoundation.org/mcp-dev-summit-north-america/
Simon Høxbro Hansen @hoxbro.bsky.social Maintainer of the HoloViz Python packages: datashader, HoloViews, hvplot, and Panel.
Github: https://github.com/hoxbro
Otto Kekäläinen @ottoke.bsky.social Posts on open source software, technology, business and the environment. More at https://optimizedbyotto.com/
Go4Know @go4know.com 🔥 Blog by Dariusz Majgier. AI, fun facts, science & brilliant ideas:
👉 https://patreon.com/go4know
🔥 Get prompts, art styles & tutorials. Learn how to create ChatGPT & Midjourney images!
👉 Join me: https://patreon.com/ai_art_tutorials
OpenAlternative @openalternative.co Discover open source alternatives to popular software. Curated by @kulpinski.dev
Join 8k+ subscribers → openalternative.co
The Astrosky Ecosystem @astrosky.eco We're building new social media tools for astronomers and astronomy enthusiasts online - from feeds to account hosting.
Website: https://astrosky.eco | GitHub: https://github.com/the-astrosky-ecosystem
Account managed by @emily.space
Holden Karau @holdenkarau.com she/her, mostly OSS big data (Spark, Dask, Ray, and friends). I ❤️☕️🛵. I don't represent my employer. Live @ http://twitch.tv/holdenkarau , http://tech.lgbt/@holden , Twitter was @holdenkarau
Jacob Tomlinson @jacobtomlinson.dev Building RAPIDS and Dask at NVIDIA. Views are my own. he/him.
https://jacobtomlinson.dev
Phoronix @phoronix-poster.bsky.social Unofficial account. Automated post via RSS.
Maintained by @danni.id
Prefix.dev - the Pixi company @prefix.dev Escape dependency hell with Pixi - your new favorite package manager!
Discord: https://discord.com/invite/kKV8ZxyzY4
Matthew Feickert @matthewfeickert.com Research scientist at UW-Madison data science institute working on #LHC #physics and data science with the ATLAS experiment @ CERN and IRIS-HEP. PhD @ SMU
akshay oppiliappan @oppi.li building @tangled.org — code collaboration platform built on atproto.
rust · nix · 1-bit pixel art · plant-based · bangalore · oppi.li
Anirudh Oppiliappan @anirudh.fi co-founder/ceo @tangled.org
helsinki · https://anirudh.fi
(i don't look at dm requests; please email me)
tangled.org trending @stitch.selfhosted.social This is an automated account to show trending git repositories on https://tangled.org (not affiliated with tangled, but I am a big fan)
This account is not monitored please contact @baileytownsend.dev about any issues
East River Source Control @ersc.io Building blocks for human and machine collaboration.
Tangled @tangled.org https://tangled.org is the next-generation social coding platform.
→ Docs: https://docs.tangled.org
→ Discord: chat.tangled.org
→ IRC: #tangled @ libera.chat
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.
Pavel @pavel.pink 
@quantco.com @quantco.com 
Sylvain Corlay @sylvaincorlay.bsky.social @QuantStack.bsky.social founder
@jupyter.org maintainer
@computeparis.bsky.social organizer
ACM software system award 2017.
Tania Allard @ixek.bsky.social Director Quansight Labs
✨ MLOps, OSS, Research Software Engineering
🚀 GDE - ML @ Google | PSF fellow and vice-chair of the board of directors
Pyladies Global Council
🌱 Disability justice activist, feminist, neurodivergent, developer 
Marcelo Trevisani @marcelotrevisani.com Enthusiastic dev, Python/C++/Rust
Core member of conda-forge
Maintainer of grayskull
Openvibe @openvibe.social The App for Connecting Open Social Web
Mastodon, Bluesky, Nostr, Threads in ONE app, in ONE feed ✨
https://openvibe.social
techknowlogick @techknowlogick.com 🐧 Open source
🖥️ @gitea.com
🍵 Tea drinker
David Brochart @davidbrochart.bsky.social Better not to start, once begun better to finish.
Steve Croce @lostinthenumbers.bsky.social Field CTO @ Anaconda, Data and AI Product Leader, and aspirational Bon Vivant
Uwe Korn @xhochy.bsky.social 
Christian Brueffer @brueffer.io Consultant in #bioinformatics and #cancer applications @insilico.consulting (all things #genomics, #liquidbiopsy, and #workflows) • 🇸🇪 🇩🇪 • 🧬🖥️ • https://brueffer.io
ORCiD: 0000-0002-3826-0989
Frenck | Home Assistant & Smart Home @frenck.social A Human. Being. Him/He. Dad. Open Sourcerer. GitHub Star 🌟
#HomeAssistant lead engineer. Passionate. Dedicated. Motto: Make a positive difference every single day. Be the change ❤
Astrophysica @thephysicsjournal.substack.com Physics, Space, Quantum Computing | BTC: bc1qqu05pu3rdqjchnh37mtylrgprkk94udc3g3umj
https://thephysicsjournal.substack.com
James Loy @jamesmloy.bsky.social 
Neil Stoker ✨ @nmstoker.bsky.social Photographer 📷 Developer 👨💻 Pythonista 🐍 Data Wrangler 🤠 ML Enthusiast 🤖🧠🎉 Countryside Lover 🍂🍄🌳💚
conda-forge @conda-forge.org A community led collection of recipes, build infrastructure and distributions for the conda package manager.
https://conda-forge.org
@dhirschfeld.bsky.social @dhirschfeld.bsky.social 
Jaime Rodríguez-Guerra @jaimergp.dev Another PhD captured by open source.
⇒ Core team at @conda-forge.org.
⇒ Steering council at @conda.org.
⇒ Staff Software Engineer at @quansight.com.
⇒ Blogging at rjai.me.
he/him
Peter Tripp @notpeter.bsky.social Builder of Open Source things
@oxide.computer.
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 🚲 🏫 🚶🏻🌲🏙️ 🌊
c't magazin @ct.de Aktuelles aus der IT, Hardware- und Software-Tests, Know-how und Praxistipps.
heise.de/ct/Impressum & heise.de/privacy
ぎーくらびっと @geek-rabb1t.bsky.social キーボードを作るうさぎ
https://geek-rabb1t.booth.pm/
Dan McKinley @mcfunley.com Leading expert
https://mcfunley.com
https://dotclub.club
https://primary.every.democrat
Quant @quant.network Pioneers in distributed ledger technology and champions of interoperability.
We provide financial institutions and enterprises with #TheFoundationOfDigitalFinance.
Learn more > quant.network
Mike McQuaid @mikemcquaid.com I'm CTPO at Administrate, Homebrew Project Leader, ex-GitHub Principal Engineer, author of Git in Practice and an OSS and developer productivity leader.
Posting mostly automated from mikemcquaid.com.
If you want me to read your reply: email me instead.
Hadley Wickham @hadley.nz R, data, 🐕, 🍸, 🌈. He/him.
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/
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
Bruno Oliveira @soliv.dev Python, Rust & C++, pytest core maintainer. Dark Souls and RPGs.