Building React Native Apps, Investor, and Tech Evangelist 🥑 | Ex @penta_medical YC S18 | React.js | Remote at @FullscriptHQ 💻 🇨🇦 | OSS ❤

Toronto, Ontario
Joined March 2010
Just open sourced a React Native library for on device NSFW image detection using CoreML 📱 It runs fully on iOS, classifies images locally, and doesn’t send any data to a server. Repo: github.com/watadarkstar/reac… If you’re building React Native apps and need privacy friendly image moderation, check it out and please give the repository a star ⭐️
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Adrian Carolli retweeted
SpaceXAI engineer Lauren Tan: "There's no point spawning 110 agents if you can't trust the output of one" "Without a verification skill, you're the one checking everything - and you become the bottleneck" In a 1-hour talk, she explains how she went from reviewing every output to shipping 1,000 PRs in a month Watch Every Step → Verify → Skills → Evals → Auto-Merge Trust in agents isn't a feeling - it's infrastructure you build Worth more than most $2,000 AI coding bootcamps Bookmark it and watch tonight
Founders using Grok Bot are already one step ahead of you Give your one-person company an AI workforce Reduce routine outsourcing and reclaim founder time Copy the full Grok Bot harness below ↓
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Adrian Carolli retweeted
This is f*cking insane. SpaceXAI engineer Nick Miller (ex-Cursor): "99% open one Grok Bot and call it automation. I run 25+ bots with a Chief of Staff, PM, QA, and 15+ workers." In this 30-minute demo, he shows how to turn one bot into a coordinated team Grok Bot → Chief of Staff → PM → QA → Workers More bots don't make a team. Handoffs and verification do Worth more than most $1000 agent engineering courses Bookmark and watch it today Then read my Grok Bot Engineering guide below ↓
Founders using Grok Bot are already one step ahead of you Give your one-person company an AI workforce Reduce routine outsourcing and reclaim founder time Copy the full Grok Bot harness below ↓
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Adrian Carolli retweeted
Grok Bot is the most magical product experience I’ve had since Claude Code last year Just pure magic
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Adrian Carolli retweeted
SDK 58 is out 🙌 This SDK is built for iOS 27. Apps on SDK 58 will be ready for Duo on day one 📖. The release also includes App Intents for Siri, 2x faster clean Android builds, faster Expo modules, and a CLI built for your coding agent. Changelog: expo.dev/changelog/sdk-58 Upgrade: 𝚗𝚙𝚡 𝚎𝚡𝚙𝚘 𝚒𝚗𝚜𝚝𝚊𝚕𝚕 𝚎𝚡𝚙𝚘@^𝟻𝟾.0.0 --𝚏𝚒𝚡
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Adrian Carolli retweeted
Why are you still using pull requests? Is it for code review? If so, do you really think your or your colleagues catch bugs and mistakes that an Opus 5.5 or Fable or Astra won't find? You can literally spawn all three of them and have them check four times each. (Also, don't tell me you don't have a "stamp plz" Slack channel or group chat somewhere.) Is it for knowledge sharing? Surely there's better ways for that now than the PR, no? We have models that can generate explainer videos, presentations, podcasts, games, quizzes, walkthroughs, ... for any piece of code it can reach. Is CI the reason? Well ackshually, CI means continuous integration and its original meaning is the *opposite* of having long-lived branches and PRs. But, leaving that aside, your agents are hopefully already running the tests before they push something, and hopefully they can run as long as they want and don't block you so they can run the whole test suite and generate "irrefutable proof" and end-to-end demo videos and so on... And so they run the tests and confirm and then you push to a branch and everything runs again and then you merge and then it runs again? That doesn't make sense, does it? Maybe you work in open source and you accept contributions, in which case I can't speak to the value of pull requests. It's been 2 years since my last OSS contribution. But from what I heard, the time of the PR is coming to an end in OSS too? I honestly don't get why people still stick to PRs. With agents you can now move 10x faster, you can finally do real continuous integration, and get more confidence in the changes the agent made. Don't slow yourself down by having all the changes pile up in a PR.
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This was unreal to watch.
Do a kickflip!
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Adrian Carolli retweeted
Not bad for our first model!
We trained Apex for React Native. It landed #2 at fixing web React. Callstack's Apex is tied #5 overall on @aidenybai's ReactBench. React Native tuning carries over to the web. Try it on Vercel AI Gateway or apex.callstack.com
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Adrian Carolli retweeted
Introducing One 2. React Native’s problem? It takes 100 packages to feel native. Now it takes just One. Think Bun for cross-platform: All-in-one, fast in every way, only three letters. npx one
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Adrian Carolli retweeted
xtool is an open-source, cross-platform alternative to Xcode that can build and deploy iOS apps from Linux, Windows and macOS. It builds Swift packages into iOS apps, then signs and installs them, and it can interact with Apple Developer Services from code. It runs on Linux, Windows through WSL, and macOS, and it is released under the MIT license. Repo: github.com/xtool-org/xtool
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Adrian Carolli retweeted
react-native-better-pdf 1.0 is out 📄 A native PDF viewer for React Native, built on @mrousavy's Nitro Views. Opens a 1,000-page PDF in 91 ms. react-native-pdf: 746 ms. PDFKit on iOS, PdfRenderer on Android. No PDFium, no WebView, no JS in the scroll path.
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Adrian Carolli retweeted
Introducing /create-verification-skill Allow your agent to verify its own work and bring you evidence with e2e as the verification layer. Based on @poteto skills ~/ npx skills add tester-army/e2e --skill create-verification-skill
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Claude, please build this. Make no mistakes.
somebody please build this and I'll be your first customer
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Adrian Carolli retweeted
Asked Grok Bot to build itself an Apple Vision Pro app. I now have interactive bots that I can talk to and place around my apartment.
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Adrian Carolli retweeted
It’s feeling really magical inside of Shopify right now. It’s clearly the greatest time in the history of tech industry right now. I hope it feels similar everywhere else.
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Adrian Carolli retweeted
I got a lot of pushback for saying that one product manager and one engineer can now be the entire team. Now @danshipper has a name for it: the pirate and the architect. I ain’t crazy after all. :-)
Tired: Two-pizza teams Wired: Two-slice teams @danshipper on the best team structure in the AI-era
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Adrian Carolli retweeted
"Almost every software development organization has at least one developer who takes tactical programming to the extreme: a tactical tornado. The tactical tornado is a prolific programmer who pumps out code far faster than others but works in a totally tactical fashion. [...] In some organizations, management treats tactical tornadoes as heroes. "However, tactical tornadoes leave behind a wake of destruction. They are rarely considered heroes by the engineers who must work with their code in the future. Typically, other engineers must clean up the messes left behind by the tactical tornado, which makes it appear that those engineers (who are the real heroes) are making slower progress." @JohnOusterhout, A Philosophy Of Software Design, 2018 Sound familiar?
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Adrian Carolli retweeted
I'm writing a guide to pstack! Here's part one.
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Adrian Carolli retweeted
Tired: Two-pizza teams Wired: Two-slice teams @danshipper on the best team structure in the AI-era
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