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Agents are very good at debugging by themselves with console, lldb, and profiling with xctrace. Agents build, run, package, and release updates with our own tools. The tools are wrappers for xcodebuild, notarytool, and fastlane and a bunch of scripts, all to maintain workflows we did manually for years.
@jtaby I’d like to make this open source, but haven’t gotten to finish the Swift rewrite. I’ll take another look at it soon.
I’ve been spending a lot of time in Ghostty, and I wanted a nicer way to build and run our Xcode projects. So I’ve made a Codex-inspired TUI (fully vibe-coded with Codex, of course).
Kudos to Pope Leo. I am disturbed by how some of my fellow AI researchers keep trying to elevate the moral standing of checkpoints and harnesses. I hope the rest of us on Team Meatbag reject this movement and stay focused on solving real problems and helping actual humans.
NEW: According to a bombshell report in the New York Times, Anthropic co-founder Chris Olah threatened to walk out of Pope Leo XIV’s AI encyclical launch in May because the pope rejected the idea that machines can be conscious. Olah’s team then privately lobbied the pope’s
@steipete To be honest, sometimes my prompts aren’t that far from this.
@theo Safety classifiers appear to trigger on nontrivial control flow. Constantly getting this when working on some of my code. github.com/openai/codex/i…
@forgebitz Coincidence? Reddit started enforcing sign-in to Old Reddit a few days ago. Originally announced to start in July. arstechnica.com/gadgets/2026/0…
Friends have told me over the last 6 months that inference is profitable. That means: Model houses might not lose that much on their subscriptions, if they lose anything at all. Model houses can't just run inference. They're in a race and if they stop they'll die. They need to build the next model. API prices then have high margins and subsidize the development of the next generation of models. I think if the race were to stop today, then prices wouldn't go up.
apparently ed proved inference is VERY profitable, and the companies, in fact, do not lose money on subscriptions.
Wrote a little more about this: adamhjk.com/blog/you-still…
I did this until I discovered I actually need B-width shoes, and yes it will cramp toes. It’s a pity that most European manufacturers don’t make anything narrower than D-width. Many American manufacturers also no longer do. I’m happy I can buy vintage, but I wish there was more choice.
This matches my own experience with GPT-5.3-Codex – I basically only run it on xhigh nowadays for all coding tasks. With all the speed improvements too, it doesn't even feel that slow, even at `xhigh`.
decided to run 5.3 codex on xhigh as well, its 90%... rip IBench, survived 3 months.
@cryptopatrick @badlogicgames Go deep on niches that pull you in. If you open PRs on an OSS repo, respect the maintainer's time and don’t submit slop - your PRs should be tight, human reviewed and manually tested. Focus on shipping useful stuff that provide value to others.
I'm joining @OpenAI to bring agents to everyone. @OpenClaw is becoming a foundation: open, independent, and just getting started.🦞 steipete.me/posts/2026/ope…
46th Street Deal, New York, 1974 Joel Meyerowitz
The best part? It comes with a new visual indicator for pace, so you don't have to read anymore to see if you're vibing too fast or too slow. Props to @antons for the work! It's the details. github.com/steipete/Codex…
@KrauseFx Couldn’t have done it without your work!
@rnmp Xcode reported 12s, and I measured xcodebuild at 14s on an incremental debug build. I guess it could be different depending on the tech you use.
Peter Steinberger �... @steipete
608K Followers 3K Following Polyagentmorous ClawFather. Came back from retirement to mess with AI and help a lobster take over the world. @OpenClaw🦞 + @OpenAI
Christian Selig @ChristianSelig
74K Followers 2K Following iOS developer, creator of @ApolloReddit, @PixelPalsApp. Previously at . he/him. Pronounced See-lig. i love aminals. 🌱
Marcin Krzyzanowski @krzyzanowskim
38K Followers 2K Following unrelated. I'm here for bugs. iOS @GoodnotesApp Builder, iOS/mac/text & more YC26 pre-apply alumni https://t.co/KoCtgMX7fb https://t.co/jCqoTvwlMy
Felix Krause @KrauseFx
44K Followers 1K Following Currently building https://t.co/zdYtaiC4wV - Creator of https://t.co/bdkYTmbkYf (previously @google @twitter)
Thomas Ricouard @Dimillian
63K Followers 4K Following Developer Experience, Codex @OpenAI Builder, Entrepreneur, iOS/macOS, Swift/SwiftUI & more
Noah Tran @_nghiatran
10K Followers 4K Following 🍎 Founder of @proxyman_app - Build apps for developers ⚡️ TinyShield: Monitor your network 📡 TCPViewer: Alternative to Wireshark
Adam Bell @b3ll
17K Followers 1K Following I make synths, interactions, animations, and hack things 🏎 🇨🇦 #no #u iOS UI @ Netflix @[email protected] https://t.co/wgUIu45tHa
Jane Manchun Wong @wongmjane
184K Followers 3K Following “The woman scooping Silicon Valley” — BBC・hacker turned builder, writer & member of technical staff・prev: Threads, Instagram, startups
Matthias Gansrigler-H... @eternalstorms
3K Followers 2K Following I'm the #indie developer behind the #Mac and #iOS apps @YoinkApp, @ScreenFloatApp, @TransloaderApp, @GlimpsesApp, #SiriMote, @flickeryApp and more!
Robin @codeOfRobin
2K Followers 2K Following Short term optimist, long term pessimist 🏳️🌈(he/they). Better programmer than geohot™️. Rage bait and annoying people instantly blocked.
Majd Taby @jtaby
6K Followers 309 Following Co-Founder: @usedarkroom, Apple Design Award winner. Author: https://t.co/w40htSEj6x, ICP Award Nominated. Previously: Lyft, Instagram, Facebook, and Apple.
Freddie Harrison @freddiewrites
832 Followers 111 Following Copy, marketing and social for @sketch + @elyxdesign. Also: dad, husband, fussy coffee enthusiast, occasional runner.
Martin @tokenpsyche
63 Followers 1K Following
Angelo Sorbello @angelosorbello1
2K Followers 2K Following Breaking down AI and SEO with actionable tweets and threads Try #1 SEO & GEO open-source platform 👉
W @WCK_SGregory
122 Followers 3K Following
Derek Cully @derekinseattle
412 Followers 6K Following Citynaut. Life long learner. Lover of food & culture. Test pilot of ideas. aka:Cliff Secord/Vincent Freeman. -Currently curious about 1750’s-1840’s, France-
kartik @sathaxe
7K Followers 8K Following gp @ https://t.co/8leGtVsLub • we’re making america the best place to start and raise a family • first check, pre-seed
Guy Cohen @guyco77
833 Followers 2K Following
Texas Paul @Itrealmetexasp
477 Followers 238 Following Curious mind. Loud thinker. Sharing facts, truth, and perspective.
Damir @f248glm
7 Followers 114 Following
Mohammed Bin Salman @mohammed_b90174
58 Followers 2K Following
Przedsiebiorcza @Przedsiebiorcza
9 Followers 1K Following
Martin @quintablator
23 Followers 316 Following
Pierre Nagorny @a1rb4ck
406 Followers 7K Following Machine Learning @artanim_mocap. #VR, real-time #animation, markerless #mocap. @[email protected] @a1rb4ck.bsky.social
Darren Ferguson @DarrenFerg53287
2 Followers 721 Following Was @darren102 until my account got hacked and I can't get it back
Sri Ravi @kannadacto
31 Followers 3K Following
Yeshu Agarwal @YeshuAgarwal
3K Followers 3K Following Stealth: agentic banking & payments. Co-founder at @transak. Forbes 30u30.
Spiegs @FlippyMeister
631 Followers 3K Following product + design | ai | growth you can do things (like hiring me), btw
Steven @stevenswiki
268 Followers 1K Following
pratikbin.node @pratikbin
2K Followers 4K Following Orchestrating at @createosai | keeping SLA in check at @NodeOpsHQ | slyly outsmarting infra chaos with cloud wizardry | 👨
Emilio Nunez-Garcia @EmilioNune20027
2 Followers 65 Following
X Gongiveittoya @prix_du_pain
142 Followers 8K Following
Mike @AiWithMike
291 Followers 1K Following 25 | Vibe coding and enjoying the life. Take more shots. Life is a game of numbers.
trading places Ω (�... @old_neller
213 Followers 3K Following
CSI Pro Art Nation @csiproartnation
1 Followers 4K Following Никому не говори. Это я завалил горизонт.
Cesco @Infracesco
1 Followers 40 Following Studying, experimenting, and learning how far code + compute can really go.
Markus Wedler @mwedler
76 Followers 2K Following
Lucas Sarmento @lucasfms
316 Followers 4K Following Founder | Tech, product, SaaS, finance | good and bad music.
m@ttias ⚡️ @mattiasgeniar
12K Followers 4K Following Building: https://t.co/9N8XQgU67R https://t.co/l5Sb1sodax https://t.co/NHKOM9uK1O
Ross Cook @iamrossc
493 Followers 6K Following Digital Marketer | Search Marketing Consulting @ https://t.co/m1cm6sNR7I
Amin @Ma_Msvi
53 Followers 718 Following
Szymon Kocot @szkocot
42 Followers 2K Following
THIAM Mor @morthiamen
12 Followers 1K Following
Juan Diego de Miguel @juandiegodemi
43 Followers 2K Following
Garrett @GarrettMichiels
550 Followers 3K Following
Larry Velez @LarryVelez
787 Followers 7K Following Founder https://t.co/pYYGeri1h0 | Founder Sinu (Acquired by Electric AI) | AI+Mechanics | Motoring Enthusiast
John @johnblythe
596 Followers 2K Following Building https://t.co/78ySskQkMy, https://t.co/aJwaCiGcqG, and teams @Launchdarkly. prev: @datavantHQ, @curvolabs, @kyruus, combined curiosity, @heysequense
Peter Steinberger �... @steipete
608K Followers 3K Following Polyagentmorous ClawFather. Came back from retirement to mess with AI and help a lobster take over the world. @OpenClaw🦞 + @OpenAI
Christian Selig @ChristianSelig
74K Followers 2K Following iOS developer, creator of @ApolloReddit, @PixelPalsApp. Previously at . he/him. Pronounced See-lig. i love aminals. 🌱
Marcin Krzyzanowski @krzyzanowskim
38K Followers 2K Following unrelated. I'm here for bugs. iOS @GoodnotesApp Builder, iOS/mac/text & more YC26 pre-apply alumni https://t.co/KoCtgMX7fb https://t.co/jCqoTvwlMy
Paul Hudson @twostraws
123K Followers 272 Following Learning and sharing at Hacking with Swift. Creator of Kickstart, Unwrap, Ignite, and two small children.
Janum Trivedi @jmtrivedi
77K Followers 332 Following Designer, prototyper, and engineer. @OpenAI × LoveFrom Before: @airbnb, @browsercompany, @netflix, SpringBoard at 
Rebecca (Slatkin) Slo... @RebeccaSlatkin
24K Followers 5K Following Founder, influencer, magician. I am none of these. Geriatric iOS biped. Great in humorous portrayal only.
Felix Krause @KrauseFx
44K Followers 1K Following Currently building https://t.co/zdYtaiC4wV - Creator of https://t.co/bdkYTmbkYf (previously @google @twitter)
Sebastiaan de With @sdw
108K Followers 1K Following human interface design. photographer, father, frontier man. Dutchman in California.
Ben Sandofsky @sandofsky
27K Followers 311 Following Avoiding this site until it’s sold off to private equity for peanuts. Try @sandofsky.com on BlueSky.
John Gruber @gruber
335K Followers 2K Following Threads: @gruber ★ Mastodon: https://t.co/zMmW95yISs ★ Bluesky: @gruber.foo
Cabel Sasser @cabel
78K Followers 522 Following I work at @panic. Find me: ✍️ Blog: https://t.co/WrULhBjGXJ 🧢 Bluesky: https://t.co/qDIqg1ddnN 🐘 Mastodon: https://t.co/CDQgBq3qlt
Thomas Ricouard @Dimillian
63K Followers 4K Following Developer Experience, Codex @OpenAI Builder, Entrepreneur, iOS/macOS, Swift/SwiftUI & more
Federico Viticci @viticci
86K Followers 1K Following Founder and Editor-in-Chief @MacStoriesNet. Writer, podcaster, and builder. I write about Apple and AI. Get more MacStories: https://t.co/A6p4iMU0js
Noah Tran @_nghiatran
10K Followers 4K Following 🍎 Founder of @proxyman_app - Build apps for developers ⚡️ TinyShield: Monitor your network 📡 TCPViewer: Alternative to Wireshark
Adam Bell @b3ll
17K Followers 1K Following I make synths, interactions, animations, and hack things 🏎 🇨🇦 #no #u iOS UI @ Netflix @[email protected] https://t.co/wgUIu45tHa
Jane Manchun Wong @wongmjane
184K Followers 3K Following “The woman scooping Silicon Valley” — BBC・hacker turned builder, writer & member of technical staff・prev: Threads, Instagram, startups
Curtis Herbert @parrots
9K Followers 270 Following Expect 👨💻, 🎮, 🏂, and general 🤓 too · Elder millennial · Neurospicy · Building @slopesapp in the open · Apple Design Award winner · “An app mogul” - Apple
UTM @UTMapp
10K Followers 5 Following iOS: https://t.co/gxz7CSId20 Mac: https://t.co/lwa8lVHwl5 Mac App Store: https://t.co/aQUdd3m5yh Discord: https://t.co/9XXI9hijEv
Patrick McKenzie @patio11
201K Followers 816 Following I work for the Internet and am an advisor to @stripe. These are my personal opinions unless otherwise noted.
Amir Salihefendić @amix3k
35K Followers 444 Following Founder/CEO of @Todoist. Sharing about product, AI, bootstrapping, and remote work. Born in 🇧🇦, grew up 🇩🇰, 3x dad 👦🏻👧🏼👶🏼
Matthew Green @matthew_d_green
167K Followers 1K Following I teach cryptography at Johns Hopkins. Mostly on BlueSky these days at https://t.co/GI4QlxYTdk.
Jon Barron @jon_barron
37K Followers 1K Following Principal research scientist at Google DeepMind. Synthesized views are my own.
Sam Altman @sama
6.4M Followers 1K Following The mission of OpenAI is to ensure that AGI benefits all of humanity
Aalok Patwa @apatwa7
555 Followers 161 Following research @openai; studied cs and business at @wharton
Lenny Pruss @lennypruss
4K Followers 1K Following VC @AmplifyPartners. Tepid takes on distributed systems, dev tools and #SJSharks
brandon @burcs
12K Followers 742 Following head of experience & design @cloudflare | founder @outerbase (acquired)
Boaz Barak @boazbaraktcs
36K Followers 883 Following Computer Scientist. See also https://t.co/EXWR5k634w . @harvard @openai opinions my own.
Jacob Xiao @jacobx
2K Followers 297 Following Building tools to let anyone build great apps. Co-founder of @Bitrig. Previously: Co-creator of SwiftUI at Apple.
Anton Repponen @repponen
14K Followers 292 Following Designer/Co-Founder of Anton & Irene Design Studio https://t.co/SuAJeCvZ5j
Tim Donnelly @tdonnelly
830 Followers 794 Following @BitrigApp co-founder. Previously SwiftUI , Square, co-founder of Storehouse
Kyle Macomber @kylemacomber
6K Followers 152 Following Co-founder & CEO @Bitrig · Co-creator #SwiftUI at Apple
Erin Redwing @realizingerin
19K Followers 1K Following Astronomer turned Astrologer ✨ @hellmoneypod Book a reading 🫳
Michael Sayman @michaelsayman
38K Followers 1K Following UI @Apple Previously @AIatMeta, @Google, @Facebook. wrote book called "App Kid" i love people, stories & crab wontons
Austin Sarner @austinsarner
3K Followers 236 Following Engineer, Designer, Meditation Teacher Partner @ Impending Founder @ AppZapper Teacher @ Dhamma Sukha Work includes Heads Up!, Clear 2, Push Pop Press, Disco
Victor E. Nunez @victornunez
15K Followers 927 Following chatgpt + codex at @OpenAI notes from the frontier dad 🇩🇴 🏀
Ryan Williams @imryanw
1K Followers 605 Following Phone, FaceTime, and SharePlay Engineer at Apple. Tweets are my own.
Theo - t3.gg @theo
408K Followers 4K Following Full time CEO @t3dotcodes & @t3dotchat. Part time YouTuber, investor, and developer
Lindsay McCallum Rém... @lindsmccallum
9K Followers 3K Following comms @openai // previously @headlinevc @twitter 1.0 @publicisgroupe paris // very online
Rui Ueyama @rui314
57K Followers 339 Following 米国Googleでソフトウェアエンジニア ＆ スタンフォード大学コンピュータサイエンス修士 → 自分の会社 → 東京大学コンピュータ科学博士課程（品川研） Creator of LLVM lld and the mold linkers
Eugene Ostroukhov @eeuoss
3K Followers 634 Following GPU tools @ Apple. Distributed systems before that. Side project: UchenML, an ML framework for hardware that has no business running models.
Eric @ericmitchellai
14K Followers 616 Following chatgpt posttraining @openai. building personal agi. I like ai and music and some other stuff
Charlie Marsh @charliermarsh
52K Followers 1K Following @OpenAI. Building Ruff, uv, ty, and other high-performance Python tools with the @astral_sh team.
Cerebras @cerebras
79K Followers 272 Following The world's fastest AI inference and training. Try the latest open models at: https://t.co/jREGhLI2nj
Alexander Panfilov @kotekjedi_ml
10K Followers 454 Following PhD @ELLISInst_Tue & @MPI_IS | past: @MATSprogram 9.0 fellow doing AI Safety & Adversarial ML
Robert Clausecker @FUZxxl
3K Followers 296 Following Professional bit shover-arounder. Does unspeakable things with SIMD units. Computers aren't smart, they are just dumb faster.
almonk @almonk
21K Followers 947 Following Mutliplexing the planet, cofounder @superlogical. Previously @poolsideai @vercel @hashicorp @heroku. ½ of @softwarereplay
Pangram @pangram
23K Followers 19 Following AI detection that actually works for text and images. This account has automated replies: Tag @pangram with 'ai?' to get an AI check on any post.
gabriel @gabriel1
131K Followers 608 Following co-founder @getenergy_, previously research at @OpenAI & @midjourney solving future of computer work with @getenergy_Trends for United States
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