Oskar Kwaśniewski

Oskar Kwaśniewski

Software Developer

React Native Developer at Callstack, currently deepening his knowledge of native development and contributing to open source. Always on the lookout for new and exciting tech to explore. In his free time, he enjoys going to the gym and playing video games.

What I’ve been shipping

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Exposing SwiftUI Views to React Native: An Integration Guide

Learn how to seamlessly integrate SwiftUI views in React Native and enhance your app’s iOS capabilities with SwiftUI superpowers.

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Solving Swift Modular Header Issues in React Native for Good

Learn how to resolve Swift modular header errors in React Native. Explore solutions like static frameworks and a custom CocoaPods plugin.

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Simplify Your iOS Brownfield Integration With RootViewFactory

Learn how RootViewFactory streamlines brownfield integration and helps migrate existing iOS apps to React Native efficiently.

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Announcing React Native for Apple Vision Pro

Explore the integration of React Native with Apple Vision Pro, enabling immersive experiences beyond compatibility mode.

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Experiment With the New Architecture of React Native

Learn how experimenting with the New Architecture of React Naive can future-proof your app and boost its performance.

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Migrating a React Native Library to the New Architecture

Want to learn more about migrating React Native libraries to the New Architecture? Our article provides an overview of the migration steps.

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Setting up React Native Monorepo With Yarn Workspaces

Why you should create a React Native monorepo and how to do it.

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You Don’t Need a Rewrite, You Need React Native Brownfield

Discover how modern React Native Brownfield integration enables cross-platform power in native apps, without rewriting from scratch.

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Stepping Into New Dimension With React Native VisionOS

Try immersing yourself in the React Universe with React Native visionOS! Listen about the latest changes in the framework & watch a 3D app demo.

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State of React Native

In this Coffee Talk Michał Pierzchała, Oskar Kwaśniewski, and Łukasz Chludziński comment on the results of the State of React Native survey. Check it out!

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React Native for Apple Vision Pro and visionOS

In this episode, Łukasz invites Oskar and Michał to discuss their experimental journey of bringing React Native to Apple Vision Pro and visionOS.

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How to Make Your React (Native) App Feel Native

How to make your React Native app feel truly native—across iOS, Android, tvOS & more. Dive into best practices, navigation, and react-native-bottom-tabs.

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React Universe Meetup: San Francisco

Missed the React Universe Meetup SF? Watch the livestream recording soon—talks on RN performance, optimization, and build-free workflows await.

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React Native ❤️ Apple Vision Pro

In this talk, Oskar talks about bringing React Native to Vision Pro and building VR apps with React

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React Native WebAssembly Release Walkthrough

Join us for a deep dive into Polygen: Callstack Incubator's breakthrough in React Native development!

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New React Native Framework for Enterprise Announcement

We know what it takes to make React Native work for serious-scale applications. That’s why we created RNEF—so enterprise teams can build with confidence, efficiency, and full control over their stack.

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Building React Universe Conf App With Replit

Mike and Oskar tried both Repl.it and Bolt.new to code a new conference app, and after burning millions of tokens, they fell back to Cursor.

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