Oskar Kwaśniewski

Senior Software Engineer

Building React Native apps at Born. Previously at Callstack Open source enthusiast with 100+ merged PRs to React Native Core.

Creator of react-native-visionos, react-native-bottom-tabs, and Liquid Glass. Focused on bridging React Native with native platforms — iOS, Android, visionOS, macOS.

When not coding, I enjoy gravel cycling and building side projects.

Projects

React Native wrapper for iCloud's NSUbiquitousKeyValueStore.

iOS 26 liquid glass effect for React Native.

MacOS menu bar app for launching iOS and Android 🤖 emulators.

Native bottom tabs for React Native, using platform primitives.

Native emoji picker popup for React Native.

Bridging analog notes and digital systems

2026-01-15

How to copy full git history to new repo

2025-10-17

Preview variables right from your editor

2024-08-05

New feature, that you probably missed

2024-05-08

Working with multiple windows

2024-03-22

I speak at React Native conferences about native development, visionOS, and performance optimization. Watch my talks →