Geoffroy Couprie @gcouprie
Rust engineer @ProtonPrivacy, ex @ApolloGraphQL OSS: nom, biscuit geoffroycouprie.com Nantes, France Joined August 2009-
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I am pleased to announce that we just released the version 6.0.0 of the rust biscuit tokens lib. It brings in new features like: - `reject if` - null - closures (ex: conditions on all member of an array) - array and map types - ecdsa signatures crates.io/crates/biscuit…
A physician at a Sudanese clinic said basic antibiotics probably would have cured a three-year-old boy’s chest infection. The medicines had been scheduled to be delivered in February. Then the new U.S. administration froze foreign aid programs. wapo.st/4esb0AV
the “adults” don’t want you to know that you can rewrite software as long as you actually understand the source material
the “adults” don’t want you to know that you can rewrite software as long as you actually understand the source material
5PM - PornHub blocks France from accessing its website 5.30PM - @ProtonVPN registrations increase by 1,000% For context, this is more than when TikTok blocked Americans.
Good points on unlimited PTOs. What stuck with me here though: having to explicitely spell out "I wanted to ensure we had employee-friendly HR policies" because that's definitely not the default mode of HR policies
Good points on unlimited PTOs. What stuck with me here though: having to explicitely spell out "I wanted to ensure we had employee-friendly HR policies" because that's definitely not the default mode of HR policies
A new @rustlang release, that means a new cargo-c crates.io/crates/cargo-c… (now also available in @gentoo the same day)
If you've ever seen this image FYI this is the source post
It's a bit weird that right at the moment I get interested in project management issues, my book list includes those. Which book should I add to that list?
I finally took the time to go through @apenwarr's excellent exploration of task scheduling and triaging. It helped a few ideas crystallize apenwarr.ca/log/?m=201712
You just made a mistake. That new feature you quickly shipped had a critical bug that some users encountered. Now your manager/PM/CEO/sales wants to get more involved in deciding what gets shipped. What do you do?
Ok, y'all. This took me several weeks and a ton of help from @frankmcsherry and @_lalithsuresh. I dug into timely dataflow, differential dataflow, and DBSP to get you up to speed on IVM engines and materialized views. Enjoy! materializedview.io/p/everything-t…
🧵 THREAD: A federal whistleblower just dropped one of the most disturbing cybersecurity disclosures I’ve ever read. He's saying DOGE came in, data went out, and Russians started attempting logins with new valid DOGE passwords Media's coverage wasn't detailed enough so I dug…
Today, in 2025, I got into 2 different debates about autoincremented indexes, UUIDs and ULIDs 😌 Sometimes life throws you a treat
For years, my favorite trait in developers was curiosity. Curios developers learn fast and write more reliable code because they follow all the small "mmm.. why does this happen" moments before users see them. But I have a new one now. Diligence. Developers that maintain…

Tim McNamara @timClicks
24K Followers 3K Following On the planet to build a better planet. Software person, kind of into Rust and creative coding. Author of Rust in Action (https://t.co/qgWenxBkeP).
Quentin '🐧' ADAM @waxzce
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Olivier Poncet 🦝 @ponceto91
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neural oscillator of ... @mycoliza
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ShirleyCh 🧡🧡�... @Shirleyyych
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Guillaume Champeau @gchampeau
67K Followers 5K Following Juriste en droit du numérique, web products designer (je fais des trucs avec l'IA), fondateur de @Numerama.
Noa 🦀 @_Akanoa_
3K Followers 174 Following - Pratique la vulgarisation graphique en dilettante. 🗣🖍👂 - Vous pouvez retrouver mes anciens articles ici https://t.co/irVu15BFfG 📖 - Streamer erratique
Arnaud Héritier @aheritier
7K Followers 3K Following Engineering Manager at @doctolib #lescastcodeurs #devoxxfr #ci #cd #devops #platformengineering #oss #jenkinsci #maven #asf
Aurélie Vache 🥑�... @aurelievache
12K Followers 5K Following Dev Advocate @OVHcloud🥑 | @Docker Captain🐳 | @CNCFAmbassadors | @GoogleDevExpert | @gitpod Hero🦸♀️ Visual tech books author Writer, sketchnoter, speaker
Luca Palmieri @algo_luca
16K Followers 2K Following Rust / backend dev / org design / climate. Baking on the good days. Author of https://t.co/WDxzUHAAe6. Building https://t.co/YMfw1oaHIi, a new Rust web framework.
Marc-Antoine Perennou... @Keruspe
930 Followers 575 Following Exherbo, GPaste, Germinal, hardware, #teamkrampouz, 1x developer, 1x SRE, 4x father. they/them.
Yannick Grenzinger Go... @ygrenzinger
3K Followers 1K Following Product engineer & engineering manager, passionated by #xDD #flow #psychology - co-organizer of @FlowConFR - Father of triplets
Sébastien Blanc 🇪... @sebi2706
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🇺🇦 Ingvar Stepa... @RReverser
8K Followers 1K Following OSS devtools, ex-Google Chrome, ex-Cloudflare, these days actively working in the WebAssembly land. Not here anymore, find me on Bluesky.
use case driven @tpierrain
5K Followers 2K Following Change Agent (powered by software). Symmathecist & VP of Engineering. Organizer of #DDDFR meetup #lowLatency #nfluent creator #Decolonial #mma #FiftySamere
Francois-Guillaume Ri... @FGRibreau
5K Followers 1K Following ⚡️https://t.co/ImvfwKCqOb 📘 https://t.co/dnRlFipGn0 🧢 Co-founder @cloud_iam_com 🔥 Indiehacker @imagecharts 🤝 Sold @bringr @redsmin
☠ Bluetouff @bluetouff
33K Followers 5K Following 🏴☠️ Building things while breaking stuff... monkey see, monkey hack 🇪🇺🇪🇺 STOP ChatControl / STOP EBSP 🇪🇺🇪🇺
Pierre Zemb @PierreZ
3K Followers 4K Following 🧑💻 Staff Engineer @clever_cloud 🤩 Distributed and Database Systems 🚀 Co-leader @finistdevs 💪 Squash player
Hamzé 🦀 @Hamzeml
3K Followers 6K Following Humanist technologist and AI optimist. Currently CTO at @welcomeaccount_. Building for an inclusive economy through #AI, #MachineLearning, #EdTech, and #Tech4Go
Mohamed Alborolusy @mo_alboroluse
227 Followers 588 Following محاولات الوصول هي الشيء الوحيد الذي يُبقيك على قيد الحياة #ElectricalControlSystems #Programming #Writers #ReadingIsLife #Art #صاحب_الرسائل
ssh @siddharth_1805
49 Followers 625 Following low latency systems engineer | building from India, for the world | rooted in eternal, living the mundane 😌
Stéphane Trébel @StephaneTrebel
204 Followers 449 Following Le Permacodeur | Néorustacé 🦀 | "average French HTMX enjoyer" | Greugue pilulé | +Bsky +Mstd | Fier Être de Lumière | Mon opinion n'engage que moi, etc.
Ryan Miville @ryanmiville
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fani @fany16122010
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person1 @ManbearpigAus
263 Followers 6K Following developing biological super weapons will surely be worth the risk
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devcsh @dev_vcodec
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Kobina @kobinabrandon
73 Followers 347 Following Former mathematician interested in software engineering, ML/AI, and decentralized systems.
Charlie Marsh @charliermarsh
28K Followers 830 Following Building @astral_sh: Ruff, uv, and other high-performance Python tools. Prev: Staff engineer @SpringDiscovery, @KhanAcademy, BSE @PrincetonCS.
Strontium_117 @Strontium_117
0 Followers 380 Following
Abdul Rahman Sibahi @asibahi
218 Followers 820 Following Architect. Wannabe entrepreneur. Researcher. Bad at witty bios.
Curvine @szbr8896
5 Followers 181 Following Big Data architect | Helping big-data teams build modern architecture faster, more elastic and more cost-effective
LisaMaurice @7LS1kUkBhlzbK7
88 Followers 2K Following
tysis-dv @DvTysis
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Teteetejer @TeteetejerpqL9
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Shearurth @Shearurthw0A
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Michael @Michael89291191
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Aladdin Ansari @Aladdinn786
159 Followers 1K Following Experience in Human Resources (HR) || Web3 developer || Developer
peina @PanThecoll
55 Followers 2K Following
Elias @Eliascm17
2K Followers 7K Following building cool shit @SquadsLabs // prev @elmnts_, @clockwork_xyz
Tech geek 🦀 @mansa_Musa254
494 Followers 1K Following Rustacean 🦀 • I play chess♟️• Graduate @alx_africa • Educator • Activist🇰🇪
andres@server:~$ @PandiAndres
136 Followers 439 Following He/Him... 100%Ingeniero en Sistemas... Backend Developer.. Linux/Python/Rust Catador de Cafes ☕ Barcelona FC 💙❤ Platonista 📖
Lucca @lucca_dev
538 Followers 1K Following Becoming a benevolent cyborg ninja, stuck with making software and learning to feel better.
nico @nicolas_clark2
28 Followers 626 Following pre-trained in maths/physics, now enjoy programming a lot, also bjj hobbyist
Claudiu-Vlad Ursache @ursachec
608 Followers 587 Following software engineer & security researcher @binarly_io
kakilangit @kakilangit
1K Followers 1K Following 98 und ¾ Prozent Chance, dass du mich nicht kennst.
Ach | Ferno 🔥 @block_ach
873 Followers 3K Following Embedded Systems Engineer stuck in a quantum state between France and China, member @SuperteamFRANCE limboman @ferno_ag
Alipoha ali @AlipohaA
0 Followers 59 Following
cz ODUMOSU @AlizzyYhungKOM
3 Followers 140 Following
Abdullahi @Abdullahi156889
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Sortough @SortoughPtGU
115 Followers 2K Following
Snertean @Snertean09_4dt
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Alexandre RAY @olman740
39 Followers 595 Following
Argos Adviser @DismeetrEABEy
179 Followers 4K Following
Lotosmore @Lotosmore2VieB
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Francisco Noel @byfnoel
28 Followers 88 Following Computer Science student at University of Massachusetts Boston. I like building safe and fast software systems.
Sheigh @SheighbLs
79 Followers 2K Following
Mara @m_ou_se
45K Followers 415 Following Rust dev, Electronics engineer, Author, @rustlang Library team lead, ADHD, Polyamorous, Lesbian, She/Her
Tim McNamara @timClicks
24K Followers 3K Following On the planet to build a better planet. Software person, kind of into Rust and creative coding. Author of Rust in Action (https://t.co/qgWenxBkeP).
Quentin '🐧' ADAM @waxzce
18K Followers 9K Following CEO @clever_cloud The best velocity and resiliency cloud solution for all developers | co-founder @_icilundi | Chairman @OpenInternetPro | co-founder @Makair_fr
Olivier Poncet 🦝 @ponceto91
14K Followers 3K Following Artisan du magiciel et adepte de programmation récréative. Je partage du code, parle de logiciels libres et open-sources, de Linux, BSD et d'infrastructure
neural oscillator of ... @mycoliza
21K Followers 1K Following wow, everything’s computer at @oxidecomputer
Patrick Walton @pcwalton
18K Followers 520 Following Programming languages and graphics person. @pcwalton.bsky.social
ShirleyCh 🧡🧡�... @Shirleyyych
18K Followers 4K Following Recruteuse IT et agent de carrière le jour, maman le soir. J'adore rire comme écrire. Les mots c'est ce que j'ai trouvé de mieux pour calmer mes maux
Guillaume Champeau @gchampeau
67K Followers 5K Following Juriste en droit du numérique, web products designer (je fais des trucs avec l'IA), fondateur de @Numerama.
Noa 🦀 @_Akanoa_
3K Followers 174 Following - Pratique la vulgarisation graphique en dilettante. 🗣🖍👂 - Vous pouvez retrouver mes anciens articles ici https://t.co/irVu15BFfG 📖 - Streamer erratique
Manish @ManishEarth
14K Followers 592 Following territory mapper. 💉did @ca_covid . 🗣️ likes languages. ✈️ Repatriate/ABCD. 👨🔬 Formerly physics. he/him
Pierre Beyssac 🏴�... @pbeyssac
22K Followers 2K Following Porte-parole @PartiPirate | Directeur d'Internet #DNS BSD #train #ImpactNumérique | Founder @eriomem_net https://t.co/GBXLhKA7id https://t.co/3v4y6tC0VY
Kate @thingskatedid
23K Followers 1K Following she/her · If I unfollowed you, it's because you keep posting things without alt text https://t.co/FpwhLrRETb
Arnaud Héritier @aheritier
7K Followers 3K Following Engineering Manager at @doctolib #lescastcodeurs #devoxxfr #ci #cd #devops #platformengineering #oss #jenkinsci #maven #asf
Aurélie Vache 🥑�... @aurelievache
12K Followers 5K Following Dev Advocate @OVHcloud🥑 | @Docker Captain🐳 | @CNCFAmbassadors | @GoogleDevExpert | @gitpod Hero🦸♀️ Visual tech books author Writer, sketchnoter, speaker
Jon Gjengset @jonhoo
34K Followers 189 Following Rust live-coder and OSS tinkerer who loves teaching. I try to keep a high SNR. Wrote Rust for Rustaceans. At @HelsingAI. Ex AWS. Co-founded @readysetio. he/him
Luca Palmieri @algo_luca
16K Followers 2K Following Rust / backend dev / org design / climate. Baking on the good days. Author of https://t.co/WDxzUHAAe6. Building https://t.co/YMfw1oaHIi, a new Rust web framework.
Catherine @whitequark
28K Followers 395 Following this account is no longer monitored i primarily post on whitequark at mastodon dot social, or elsewhere under the same username 2010-2024 bye!
Marc-Antoine Perennou... @Keruspe
930 Followers 575 Following Exherbo, GPaste, Germinal, hardware, #teamkrampouz, 1x developer, 1x SRE, 4x father. they/them.
Peter Steinberger @steipete
45K Followers 2K Following Full-Time Open-Sourcerer🏳️🌈 Flips vibe coding—agentic engineering. Just one more promp! @VibeTunnel 👻@peekabooagent https://t.co/yZvECHfFC6 https://t.co/DaVIpdNGcc
Maths History @mathshistory
109K Followers 78 Following History of maths (math to some) tweets from the British Society for the History of Mathematics (BSHM). Mainly tweeted by @snezanalawrence
Graphite @withgraphite
6K Followers 117 Following Code review for the age of AI. Get started with faster, smarter reviews here → https://t.co/GywNWcuO4P
Pollen Robotics @pollenrobotics
6K Followers 213 Following French Robotics company Doing open source robots made by open minded humans to explore real-world applications Join our community : https://t.co/8j2MrPPHzG
Ursula von der Leyen @vonderleyen
1.6M Followers 266 Following President of the @EU_Commission. Mother of seven. Brussels-born. European by heart. 🇪🇺
Charlie Marsh @charliermarsh
28K Followers 830 Following Building @astral_sh: Ruff, uv, and other high-performance Python tools. Prev: Staff engineer @SpringDiscovery, @KhanAcademy, BSE @PrincetonCS.
eu/acc official 🇪�... @euaccofficial
49K Followers 126 Following MAKE EUROPE GREAT AGAIN Official 𝕏 account of eu/acc, a movement to save Europe by @levelsio Started here: https://t.co/Mt4OHYdYyR
Phoenix𝕏 @Xaraphim
8K Followers 454 Following Doing CAD Till 5 in the morning | See highlights tab for projects ⚙️🔬🧪✝️
james hawkins @james406
13K Followers 2K Following getting to $50M ARR, building in public | @posthog co-ceo | orange blooded @ycombinator alum | teach me about capital letters | mother of hedgehogs
Mach Industries @Mach_Industries
5K Followers 10 Following Mach builds unmanned weapons and their manufacturing.
Cooper @CooperZurad
9K Followers 967 Following Co-Founder of @rackrobotics | (W)EDM ⚡ | Proud @DrexelEngr dropout | ex @genfabco | Featured by @vice 15M views | Have a question? DM me!
Solugen @solugen
5K Followers 295 Following Innovative chemical solutions for the toughest industrial challenges.
Zane Hengsperger @zanehengsperger
23K Followers 1K Following slinging metal @noxmetals (YC S25) | Supply America's Industrial Base
Firefly Aerospace @Firefly_Space
188K Followers 233 Following Launch, land, operate in space – anywhere, anytime. We're the space and defense tech company delivering critical missions from LEO to the Moon and beyond.
Ethan Evans @EthanEvansVP
33K Followers 23 Following Former Amazon VP (70+ patents; 1,000+ hires; led global teams of 800+; 15+ years at Amazon). Now Training Leaders to become True Executives.
Naomi Brockwell priv/... @naomibrockwell
81K Followers 6K Following Founder of https://t.co/ap056uzeZu https://t.co/NoRPcIVZkl https://t.co/QbGtbvXNuW Dance like no one's watching. Encrypt like everyone is.
Cerebras @CerebrasSystems
35K Followers 255 Following The world's fastest AI inference and training. Try the latest open models at: https://t.co/jREGhLI2nj
Pete Oxenham @peteoxenham
8K Followers 730 Following Machinist, head of product @ https://t.co/ljhcu8mLXl, founder https://t.co/D5H1LTJYTb (acq by toolpath), making ai for CNC machining. Opinions my own and most likely wrong.
Aaron Boodman @aboodman
9K Followers 967 Following CEO @rocicorp. Building @zero__ms, raising two great kids, trying to be a better person. Past: @replicache, @nomsdb, @googlechrome.
Adam Chalmers @adam_chal
4K Followers 3K Following Aussie. Building a new programming language for CAD @Zoodotdev. Formerly rust @Cloudflare. My tweets have been read out in Australian parliament.
Alexandre Grdl @AlexandreGrdl
314 Followers 561 Following IT management, Architecture and Development. Software architecture serving business strategy. Exploiting SLMs. OPEN TO WORK.
Davide Radaelli @daviderady
4K Followers 590 Following Building electric muscle to advance biomimetic robots
Corca @Corca_math
5K Followers 43 Following Collaborative Math Editor. Typing math should be as natural as typing plain text.
Blake Scholl 🛫 @bscholl
106K Followers 2K Following Founder/CEO @boomaero. Life is short so if you want to do a lot, it helps to move fast.
Proton @ProtonPrivacy
333K Followers 465 Following A better internet starts with privacy. Stay in control with e2e encrypted email, drive, docs, password mng, AI, & VPN. 🫶 Help @ProtonSupport 🐈⬛ New @asklumo
Andreas Klinger 🦾 @andreasklinger
62K Followers 4K Following Mad-scientist investor main-questing Europe 🇪🇺 @prototype_cap 🦾 @euinc_petition 🇪🇺 🔧-prev: @producthunt @angellist @coinlist @beondeck ❤️ @susanneknoll
Shreyas Doshi @shreyas
298K Followers 1K Following Led a couple of Stripe's most successful products from early days. Prev Twitter, Google, Yahoo. Now advising & teaching. Tweets useful for some—not for everyone
claire vo 🖤 @clairevo
34K Followers 3K Following 👩👦👦 mama 💻 3x CPTO • building @chatprd • 🎧 host @ How I AI 🧠 pm + eng + ai + startups 😍 @elawless 📱chiefproductofficer on tiktok
Anne-Laure Le Cunff @neuranne
69K Followers 3K Following hypercurious :) founder @ness_labs • neuroscientist @KingsIoPPN • author of Tiny Experiments • personal science, systematic curiosity, experimental thinking ꩜⋆✦
Machina Labs @MachinaLabs_
7K Followers 26 Following Unlocking Manufacturing through Robotics and Artificial Intelligence
Kat ⊷ the Poet Engi... @poetengineer__
51K Followers 347 Following artist, engineer, researcher. live audio visual performer. artificial life, computation, neuroscience, machine psyche. science & art, futuristic & ancient.
April King 🌀 @CubicleApril
19K Followers 342 Following Staff Security Engineer @ Dropbox, previously Mozilla, Twitter. mastodon @ [email protected]. Union Park District Council board member.
Gruyere Space Program @GruyereSpace
11K Followers 164 Following Cheese and rockets lovers! Developing a rocket hopper 🚀 Engineering students
Andrew McCalip @andrewmccalip
69K Followers 1K Following Building spacecraft @vardaspace. Circumnavigating world @ https://t.co/hLM2DEHrnx. Art @ https://t.co/Cze338MBMi Former: Co-Founder Cosine Additive, acquired by GE
Lin Kayser @linkayser
1K Followers 92 Following Radically accelerating engineering to shape our physical world. Founder of @leap_71 @hyperganic @iridas
Replit ⠕ @Replit
192K Followers 554 Following Idea to app, fast. Create beautiful, modern web applications at the speed of thought with the power of Replit's AI Agent.
Damon Chen @damengchen
87K Followers 2K Following Founder of https://t.co/yyLfH8mOar and https://t.co/ZzTStsMvdh 🆕 https://t.co/T70J8MBCS3
Joran Dirk Greef @jorandirkgreef
8K Followers 2K Following Creator, Founder and CEO of @TigerBeetleDB — the financial transactions database designed to power the next 30 years of transaction processing.
Pekka Enberg @penberg
12K Followers 1K Following Founder and CTO of @tursodatabase. Systems and low latency. Previously @ScyllaDB and Linux.
Casey Handmer @CJHandmer
54K Followers 4K Following Physicist, Immigrant, Pilot, Dad. Former Caltech, Hyperloop, NASA JPL. Founder @terraformindies. Read scrolls. Build more solar!
eu/acc @euacchq
13K Followers 203 Following European Acceleration. Pro-Growth. We want to make Europe grow better, stronger and to show leadership. EU HQ.
Rick @rickasaurus
10K Followers 3K Following 2x Dad, AI Old-Timer, FP Enjoyer, Math for Fun, Startup Leadership Roles in: Fintech, Healthcare, RegTech, Biotech. B2B, B2B2C, Successful Exit CTO.
Build your own X @codecraftersio
7K Followers 2 Following On CodeCrafters, you can create popular devtools from scratch. Build your own Redis, Docker, SQLite — in Rust, Go, JavaScript, etc.