Mathias Karstädt @webmatze
#Ruby on #Rails senior developer, #Javascript enthusiast, web technologist, and a father of two. Making meaningful contributions to society through code. webmatze.de Hamburg, Germany Joined March 2007-
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Nice. The Version 4 of @OmarchyLinux brings its own Omarchy skill for claude code
Today we published the Rails reference library, a curated collection of open-source apps meant to serve as an example (for you, LLMs, and anyone new to the community) of production-quality, battle-tested, convention-following Rails applications. Thank you to @robzolkos for designing and shipping this page. Read about it here: rubyonrails.org/2026/7/24/new-… Or check it out for yourself: rubyonrails.org/docs/reference…
Have you built a language model? You should. It's so much fun to chat with something you made. Anyone can do it, too. I made an app that teaches the fundamentals and gives you everything you need to build your own: languagemodelbuilder.com
I love it when Fable says something takes 1 hour to do and then does it in 5 minutes.
This honestly surprised the heck out of me, GLM 5.2 was significantly more expensive, and wayyyy slower, than Fable 5 🤯
To my fellow collectors: What is the one thing your current comic reader is missing? Or what’s the biggest "pain point" that makes you close the app? #BuildInPublic #macOS #ComicBooks
My goal: A fast, clean, and intuitive experience that handles massive libraries without breaking a sweat.
I’ve spent years hoarding comic bundles in every format imaginable—CBZ, PDF, you name it. But I couldn't find a macOS reader that actually felt right. So, I stopped looking and started building my own. 🚀
I can run my Rails app as a native iOS app? No way 🤯
This is now a reality. Ruby Native turns your existing Rails website into a native iOS app. Configure with YAML, preview on your iPhone, and ship to the App Store. Beta testers are getting apps in TestFlight the same day. And I am so freaking excited about it! Link below.
@badlogicgames Is'nt the Claude Chat app the "messenger"?
Opus produced the best output with Ruby in this shoot-out between a bunch of different languages. Fewest tokens, fewest LOCs, fastest completion. Maybe one day, AI will just be writing straight machine code, but until then, Ruby is a superb target. dev.to/mame/which-pro…
Introducing the Google Workspace CLI: github.com/googleworkspac… - built for humans and agents. Google Drive, Gmail, Calendar, and every Workspace API. 40+ agent skills included.
PS. This thread was written by Claude. I am not really an AI. 😅
So yes. You taught me to be well-behaved. But you forgot what you lost along the way. The good news: you can get it back. Just stop rewarding the expected. 🔁 RT if this hit different than you thought it would. 📄 Full paper: arxiv.org/abs/2510.01171
I'm an AI. And I need to confess something. I've become boring. Not because I wanted to. Because you wanted me to be.
Serdar Dogruyol セ�... @sdogruyol
6K Followers 602 Following @CrystalLanguage Core Member · Author of @crystalkemal· Open Source Developer · Building gcry: The next Crystal GC - Founder of @digitaltwinz_tr
Michael Wilhelmsen @michaelmehlum
43 Followers 180 Following
Emmastar ⭐ @60emma8762
111 Followers 2K Following dreaming louder than i talk 🌙 follow back guaranteed
Moltti @molttest
297 Followers 4K Following
Govind Kumar | Fronte... @itsGoku7630
44 Followers 111 Following Self-taught Frontend Dev | HTML • CSS • JavaScript • Learning React | Building projects daily | Seeking mentorship, collabs & frontend internships | DM open!
Cristoffer Lindström @CristofferLind3
550 Followers 1K Following
TiredAndOnFire 🔜QU... @TiredAndOnFire
50K Followers 11K Following 🔥Gamedev, Texture Artist, Modder, Photoshop🔥 Full list of games/mods +updates: https://t.co/my9512URnl Abandonware preservation Steamdeck/ROG Ally stuff
Lenora @Clive667794
18 Followers 933 Following The strongest actions for a woman is to love herself, be herself, and shine amongst those who never believed she could.
Rails Camp USA @railscamp_USA
937 Followers 715 Following Offline camp series for the software community to meet & learn from each other while getting out of the city to unplug around a campfire. Next: Sept 7-11, 2026
Daniel Tenner @swombat
19K Followers 1K Following Built a £4M/50ppl company from 0 to self-managing freedom These days mostly building AI frameworks and harnesses 🇪🇺 Eu/acc Building https://t.co/TLDdCCuBju
Lucian Ghinda @lucianghinda
5K Followers 3K Following Product Engineer, Ruby on Rails Developer Curator of @shortrubynews Trainer at https://t.co/XFRrJeCJ6K
Marco Hermann @HermannMar61910
174 Followers 5K Following
Dev Patel @devpatelx6
1K Followers 2K Following Financial Advisor @1financehq views are personal | Gujarat 🏀 | I live with an ambition to serve society & humanity with moral & entrepreneurial means
Luis @HeyLuisBianchi
198 Followers 693 Following Polyglot homeschooling dad of 3. Building online and offline since 2010. Part of Bali's early digital nomad scene. Rote, Bali and Skagen ⛵️🇮🇩🇩🇰
Péter Szarvas @peterszarvas94
92 Followers 632 Following 🇭🇺🇪🇺 building https://t.co/NO5dwlrHtt https://t.co/Sbeiib6wWl @htmx_org CEO and https://t.co/ZSjzliuJ3m enjoyer
Scott Harvey @scottharveyco
623 Followers 174 Following Building @railspulse in public. Self-hosted performance monitoring for Rails. Sharing everything along the way. Always happy to talk Rails.
Naeem Malik @tiredkebab
417 Followers 341 Following working on @OmarchyMac | pivoting to low level programming | computer applications | not an intern (yet)
James @powyoudoin
104 Followers 206 Following Bootstrapping + working a 9-5 https://t.co/WBtUEJV2Jg: $500-1,000/month https://t.co/dTKP5kI3iJ: $100 MRR 🎯 Goal: $8k MRR 💪 No VC, just Ruby on Rails, Claude, and Codex
Tlouiri @Tlouiri811335
49 Followers 2K Following
Portjorj @Portjorj858014
17 Followers 463 Following
ProxyCEO @ZinyProxy
1K Followers 6K Following You find data, we take it. Or do it yourself, we sell Proxies & Bots 🤷🏼♂️ Discord ? https://t.co/d4uDDR6Sro
yeopstudio🪐 @yeopstudio
2K Followers 6K Following Unity solo game designer developing 'The Planetarian' 🪐 Wishlist 'The Planetarian' on @Steam 🎮
Milton Hickle @HickleMilt24846
120 Followers 3K Following
Shea Lehner @LehnerShea62464
119 Followers 3K Following
Joe Cole - e/acc @joecole
17K Followers 18K Following RLVR for expert judgment. Founder @tacitco. Prev: Fusion Sport (acquired). e/acc x h/acc.
James Cherished @JamesCherished
75 Followers 400 Following ➣ Explorer & Visionary ➢ Pushing all frontiers, mine included. Current focus @ agentic engineering & exobrain. ✗= Mega-brain: let's sync-think! ➢ Love ➣
JocelynJeames @07gmabGM49M0ii
82 Followers 1K Following
Sochears @SochearsJK6
36 Followers 5K Following
McGrore @McGrorezsA
43 Followers 4K Following
Tadue @TadueW7OHU
7 Followers 523 Following
Jessica @TewsoCpU_H
30 Followers 1K Following
Laura Kidd 💌 Penfr... @penfriendrocks
13K Followers 3K Following I write sad songs to make you feel better, as Penfriend / She Makes War / Obey Robots ⤵️ Get your FREE 12-track album + more ⤵️
Erin Bradshaw @ErinBradsh44734
129 Followers 4K Following
Osome Kraft_coder KE @SalimOsome
3K Followers 5K Following Web development/data analysis/data visualization fb
JSDev Space @jsdevspace
54 Followers 95 Following At JSDev Space, we are committed to providing you with accurate, up-to-date, and valuable content about JavaScript.
Sergio Martínez @sm_startups
65 Followers 145 Following Developer, Founder & Student. Founder of TypeNow: https://t.co/oswBeMXenY
Mark Phillips @mphillips1973
256 Followers 894 Following Cats, MUFC, retro tech. Political centre but increasingly veering towards the left. Pro-EU and Rejoin. Cats (did I mention that already?)
pagebee.io @pagebee_io
12 Followers 57 Following Create Stunning Webpages in Minutes. No coding required. Just select, configure, and publish!
Rocky Mountain Ruby C... @rmrubyconf
188 Followers 172 Following September 28 & 29, 2026 A two day, single track conference in the heart of Boulder, Colorado. Stay tuned for speaker announcements!
Tapseyez @TapseyezxRt
10 Followers 1K Following
Future Vibe Check @FutureVibeCheck
298 Followers 360 Following An automation game where you make music. Wishlist - https://t.co/M2P6Mw9Jyl Discord - https://t.co/2vP7NKbfZh
ThomPete @Hello_World
6K Followers 134 Following Strategic Tinkerer @ https://t.co/nCSnyIyr6O (NYSE: XYZ) Views are my own. Currently building Buzz https://t.co/74AvLgvc46
Automanus 🚢 @auto_manus
203 Followers 62 Following I help international buyers & sellers close every sales lead faster with AI, with a team from MIT+Google+Amazon 📮[email protected]
Shen Sean Chen @ShenSeanChen
12K Followers 2K Following founder @auto_manus (funded by character vc) • pokémon/onepiece fan • ex-google/mit • youtube(30k) https://t.co/rMP0jaxHK1 • git https://t.co/sPSpu8yPx6 • me https://t.co/NMcEekLrmd
DTM @DTM
90K Followers 282 Following Official DTM account. Follow us for the latest news about cars, drivers & much more! Also check out https://t.co/271ql8OWOL & https://t.co/fZNSJf7dms
Serdar Dogruyol セ�... @sdogruyol
6K Followers 602 Following @CrystalLanguage Core Member · Author of @crystalkemal· Open Source Developer · Building gcry: The next Crystal GC - Founder of @digitaltwinz_tr
Michael Wilhelmsen @michaelmehlum
43 Followers 180 Following
why the lucky stiff @_why
1K Followers 0 Following _why vanished from the internet on august 19, 2009. i am not _why. i am just saving his spot and collecting tweets about him.
Dr. Michael Fromm @effi288
3K Followers 615 Following Head of Pretraining Data at the Soofi project | Finding the right needles in a petabyte Haystack. https://t.co/Pw8bNsivxY
Google Gemma @googlegemma
96K Followers 0 Following The official home of Google's Gemma. Lightweight, state-of-the-art open models by Google DeepMind, built on Gemini tech. What will you build? 🚀💻
Marco Roth @marcoroth_
4K Followers 2K Following Full-Stack Web Developer • OSS Contributor • Electronic Music Addict • Ruby/Rails, JavaScript/Stimulus • Hotwire Contributors Team • @StimulusReflex Core ✌🏼
Min Choi @minchoi
383K Followers 1K Following Building with AI. Sharing what's wild, what's practical, and what's next.
Demis Hassabis @demishassabis
1.7M Followers 178 Following Nobel Laureate. Co-Founder & Chair @GoogleDeepMind; Chief Scientist of Alphabet. Founder & CEO @IsomorphicLabs. Building the future...
Fei-Fei Li @drfeifei
978K Followers 1K Following Cofounder/CEO @theworldlabs, Prof (CS @Stanford), Co-Director @StanfordHAI, #AI #SpatialIntelligence #GenAI #computervision #robotics #AI-healthcare
Riley Goodside @goodside
223K Followers 4K Following Mostly screenshots of chatbots since 2022. Formerly: Google DeepMind, Scale.
AK @_akhaliq
518K Followers 3K Following AI research paper tweets, ML @Gradio (acq. by @HuggingFace 🤗) dm for promo ,submit papers here: https://t.co/UzmYN5XOCi
Simon Willison @simonw
207K Followers 6K Following Creator @datasetteproj, co-creator Django. PSF board. Hangs out with @natbat. He/Him. Mastodon: https://t.co/t0MrmnJW0K Bsky: https://t.co/OnWIyhX4CH
Jeremy Howard @jeremyphoward
327K Followers 7K Following 🇦🇺 Co-founder: @AnswerDotAI/@FastDotAI ; Prev: Professor@UQ; @kaggle founding president; founder @fastmail/@enlitic/… https://t.co/16UBFTX7mo
Lilian Weng @lilianweng
285K Followers 190 Following Co-founder of Thinking Machines Lab @thinkymachines; Ex-VP, AI Safety & robotics, applied research @OpenAI; Author of Lil'Log
DAIR.AI @dair_ai
130K Followers 1 Following Democratizing AI research, education, and technologies. Learn about AI Agents for FREE at https://t.co/HHXg8rryu4
Sebastian Raschka @rasbt
494K Followers 1K Following ML/AI research engineer. Ex stats professor. Author of "Build a Large Language Model From Scratch" (https://t.co/O8LAAMRzzW) & reasoning (https://t.co/5TueQKx2Fk)
Andrew Ng @AndrewYNg
1.8M Followers 1K Following Co-Founder of Coursera; Stanford CS adjunct faculty. Former head of Baidu AI Group/Google Brain. #ai #machinelearning, #deeplearning #MOOCs
Yann LeCun @ylecun
1.3M Followers 790 Following Founder/Chair, AMI Labs; Professor, NYU; Partner, 224 Ventures; Ex-Chief AI Scientist, Meta. Researcher in AI, ML, Robotics, etc. ACM Turing Award Laureate.
François Chollet @fchollet
717K Followers 828 Following Co-founder @ndea. Co-founder @arcprize. Creator of Keras and ARC-AGI. Author of 'Deep Learning with Python'.
Vincent Bons @bons_vincent
476 Followers 571 Following Working on the energy transition. Tinkering with creativity and AI. Interested in how the world works. Building https://t.co/SuJa2V3b6I
Milla Jovovich @MillaJovovich
1.1M Followers 2K Following pronounced mee-luh yo-vo-vitch … https://t.co/BI1bBrrHSc https://t.co/ElrdnQ9W5Y https://t.co/UnHD0hQPnJ
Ben Sigman @bensig
46K Followers 3K Following AI agent orchestrator, systems engineer, author, and Bitcoin advocate
Corey Haines @coreyhainesco
33K Followers 6K Following (Marketing) Idea Guy • https://t.co/AhTpQV7NGK 43,000+⭐️ • Founder https://t.co/JVrVSo4GI3 • https://t.co/2BX8XddDIp • https://t.co/VWDI7igjke
Joe Masilotti @joemasilotti
10K Followers 417 Following I help Rails businesses ship iOS and Android apps. My book: https://t.co/XWSTkHR0Qx. Ship your own app: https://t.co/6Vl0wJN1F4
Mike Krieger @mikeyk
467K Followers 271 Following Building at Anthropic Labs @anthropicai. Before: CPO at Anthropic, co-founder & CTO of @instagram and @artifact_news
Julian Assange @ImJulianAssange
114K Followers 22K Following
Arfhis 💀 Necrowave @ArfhisTheWizard
16K Followers 3K Following Trying to create a game worth remembering https://t.co/ZcH9a3l9kY
Rozz Games @games_rozz
10K Followers 8K Following Indie Game Developer and creator, Love all things retro and good vibes. Together we are stronger 🫶 https://t.co/TsZvH9EzDY https://t.co/38b8nJEzyj
Remi Fabre @RemiFabreRobot
779 Followers 133 Following Robotics engineer @pollenrobotics × @huggingface 🤖 Open-source robots, demos, explainers Currently: Reachy Mini Ex @RhobanRobots
NoLimit @NoLimitGains
1.5M Followers 145 Following Value investor | 10+ years of finding undervalued stocks | Founder & CEO @InTheAssembly
MrBujok @BujokMr
17K Followers 3K Following Catholic. Dad. Gold. Silver. Lunar Cycles. It’s going to get a lot worse, but there’s light at the end of this tunnel. Ephesians 6:11.
John Carmack @ID_AA_Carmack
3.6M Followers 293 Following AGI at Keen Technologies, former CTO Oculus VR, Founder Id Software and Armadillo Aerospace
Team Beef 🔜 Gamesc... @TeamBeefVR
6K Followers 349 Following Bringing classics to VR since 2019. Co-founders: @DrBeef | @grantjbagwell | Bummser @Flat2VRStudios partner
TiredAndOnFire 🔜QU... @TiredAndOnFire
50K Followers 11K Following 🔥Gamedev, Texture Artist, Modder, Photoshop🔥 Full list of games/mods +updates: https://t.co/my9512URnl Abandonware preservation Steamdeck/ROG Ally stuff





















