Michał Chudziak
@michalchudziak
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Director of Engineering @callstackio. React Native Open Source contributor.
Wrocław, Polska
Joined October 2015
As of the newly released v2, the React Native Brownfield library supports React Native 0.81 & 0.82 versions 🎉 Also, to support 0.82, the Brownfield Gradle plugin v0.6.0 brings support for the new JS bundle paths in the build directories. https://t.co/uvere1SmL5
github.com
2.0.0 (2025-11-08) Bug Fixes ci: reinstall Pods in Swift example (61a18ca) correct JS entrypoint filename for release example app builds (ff4a163) make android library evaluation depends on expo (...
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The future of React Native
There has been a healthy amount of interest in my React + Imgui + Static Hermes proof of concept, so I will write an in-depth article explaining everything: - The custom React renderer - Integrating Static Hermes in a runtime - event loop, polyfills, etc. - Zero-cost FFI
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There has been a healthy amount of interest in my React + Imgui + Static Hermes proof of concept, so I will write an in-depth article explaining everything: - The custom React renderer - Integrating Static Hermes in a runtime - event loop, polyfills, etc. - Zero-cost FFI
Introducing proof of concept React Imgui! The name is a joke, but it is accurate enough. In the last few days I have been working on a prototype of React driving Dear ImGui using Static Hermes. The result is a fully native app written almost entirely in JavaScript, using
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I’ve always felt that testing native modules in React Native is overly complex. We had to rely on a mix of native and JavaScript tests with mocks which wasn’t ideal. Fortunately, we finally have a good solution for that.
🎉 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.
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It’s been a week since the transition of React and React Native to the React Foundation was announced. Proud that @Callstack is part of this change. As I meet with clients who’ve long wondered about the long-term support for advanced use cases within the React Native
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We’re looking for a couple of senior React Native engineers to join the @callstackio team! If you’d like to work with some of the best in React Native and make a real impact by shipping your code to billions of users, DM me. EU only.
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After 6+ years of failed experiments, it's finally working. Direct native API access from JS in React Native 🥹 Access the full iOS SDK – like a native dev. Cross threads – like a native dev. Today, my brother in JavaScript, you are a native dev.
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Enjoy faster @rockjs_dev v0.11: - bundled create-rock for instant startup - improved fingerprints - iOS prebuilds by default
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🎉 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!
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@reactuniverse_ What a conference! Unique chance to learn, share, and be surrounded by innovators who are shaping the future.
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🚀 New in `react-native-sandbox`: isolated instances can now communicate directly via the `postMessage` API. The demo shows two sandboxes exchanging messages with dynamic whitelist, proving you can build secure multi-instance apps and micro-frontends in React Native. Follow
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It was 9 years ago when I hired the then 3-person team of Callstack to help us serve $100MM revenue customers by bringing @reactnative to @Windows 7/8 . The leadership I worked under were small-minded in many ways, but their ageism was shocking. “They look like Justin Bieber”. My
🎉 Big news: Callstack has partnered with Viking Global Investors to accelerate global growth Viking is a top-tier global investment firm with over USD 50B in capital under management and a strong track record of backing ambitious companies. Its support marks the start of an
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I'm excited to finally share: Rozenite, the React Native DevTools plugin framework, is launching early next week! 🎉 We're aiming for a Monday release, but no rest yet. I'll be pushing commits all weekend to make sure it’s rock-solid for anyone ready to try it out.
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with new better models coming ever week, it's sucks that we can just one model in CLI tools... introducing zeroai 🔥 AI powered CLI app with support for any model, even including latest @grok! 👀 See the demo and sign up for the waitlist 👇
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Not every NPM package can be trusted - supply chain attacks are real. DevTools plugins are no exception. That’s why I’m sandboxing each plugin in its own execution context 🫡
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Been working with brownfield projects for a while, and had to build everything from scratch, each time. But that has changed since, react-native-brownfield 1.0 exists now: - Load SwiftUI and UIKit views - Load Jetpack Compose and Android views - Package everything More 👇
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React Native Enterprise Framework is now open source! 🚀 We've built it as a drop-in replacement for Community CLI and for those who want to incrementally adopt React Native. ✨Features: ▪️Reusable cloud builds ▪️Novel Brownfield approach ▪️Self-hosted on your infrastructure
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