Tomasz Misiukiewicz

Last week this session took 9 minutes and 150k tokens on Opus 4.6. Complex app navigation, network debugging, perf profiling on a production app. Justified, right? Not really. Same session today: 69k tokens. 6 minutes. Less than half. Here's how 🧵

Announcing a new Claude Code feature: Remote Control. It's rolling out now to Max users in research preview. Try it with /remote-control Start local sessions from the terminal, then continue them from your phone. Take a walk, see the sun, walk your dog without losing your flow.

After a three-year break, Agent Conf is back: reimagined. Born as a beloved React conference in the Austrian Alps, we’re opening a new chapter in Warsaw. This time focused on the next frontier of software: AI Agents. agent.sh/?utm_campaign=…

Introducing Agent Device: token‑efficient iOS & Android automation for AI agents 𝚗𝚙𝚡 𝚊𝚐𝚎𝚗𝚝-𝚍𝚎𝚟𝚒𝚌𝚎

💣 New DevTools plugin for Rozenite: AI SDK Profiler. Inspect prompts, outputs, metadata, and latency from Vercel AI SDK. Works with on-device models or in the cloud. Check it out! ⬇️

@SzymonRybczak I’ll never forget everyone’s faces when on our first day at work somebody asked him about the role he was joining and he answered “I’m Szymon’s dad”🤣

Fun fact: when I was under age my dad had to travel with me due to Polish law for various internal parties, events and conferences. He travelled with me 12 times (!), one time even to 🇺🇸 for React Conf! He didn't complain of course and met big part of Callstack team 😂

Today is my last day at @callstackio! It's been a ride! 🫡 ◆ joined when I was 16 as the youngest employee, ◆ found and fixed a bug in React Native core, became youngest contributor ever, ◆ post with announcement went viral on X, ◆ grew my X account from 0 → 5k followers, ◆ made 10+ public talks, ◆ celebrated my 18th birthday at a company party, ◆ worked with ∞ core contributors, framework creators and people shipping RN apps to millions of users Amazing 3 years pushing React Native to limits! 🔥

@grabbou a few years ago I was totally addicted to this😅 I still check genealodzy.pl from time to time to see if any new records appeared - there’s something oddly satisfying about digging through all that data and connecting the dots between people

So I found a great way to distract myself from working too much. Building family tree. Almost 600 people now. Few on-site trips planned for this week. MacFamilyTree is really great application to get you started. One-time fee, no subscription, no cloud. Everything local with great functionalities. I don't expect this to be a popular hobby, but if anyone's into it, I am happy to chat and exchange some tips/tricks!

🎉 Introducing React Native Harness - a lightweight framework for testing native modules directly on device or emulator. Write tests in a Jest-like syntax, run them in a real React Native runtime, and verify native behavior without mocks.

🎉 PSA: First-class ArrayBuffer support is coming to TurboModules! No more base64 serialization. Massive performance wins for binary data! For an 8 MB payload, that means: - base64 → ~666 ms 🐢 - direct ArrayBuffer → ~1 ms 🚀 Huge 👏 to @_ikswodarap for shipping this!

On my way to @reactuniverse_ 🚀

@thymikee Somewhere around 0.54 🤔

v0.44 is the first version of React Native I've ever used. what's yours?

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Releasing something exciting on Monday 🚀 Save the date!

RNEF is about to change. Prepare for a new chapter 🤫

Rozenite - a plugin framework for React Native DevTools - is now live in alpha! 🎉 What started as a hacky PoC is now something you can use in real projects. Still lots to come: better network monitor, Redux DevTools, Re.Pack support & more 💪

Installing signed iOS apps from a link coming soon to @rnef_dev S3 provider. Like Fastlane but without Ruby

What if React Native used the same native module system as Node.js, Deno, and Bun? That’s what we’re building, together with amazing Open Source community. ✅ ABI-stable native modules ✅ Support for C++, Rust, Swift & more ✅ Prebuilt binaries that work across versions ✅ Shared code between platforms & runtimes Learn more in the article 👇, and find out what this means for you in the thread 🧵

We're bringing Node-API (used in Node.js, Deno, Bun) to React Native: - ABI-stable & runtime-independent - cross-platform prebuilds - supports Rust, Go, Zig, C#, and more It’s very early days, but give it go and ⭐️

React Native Legal doesn't stop, there's another release 🎉 In 1.3.0, there is new support for multiple version resolutions, as well as bugfixes, refactor of shared logic to separate package and the library got e2e tests to ensure future contributions high quality 🥳 🧵

New FoundationModels API for running on-device AI by  is working with react-native-ai and @aisdk 🔥🔥