---
title: "Building React Native App for Vega OS"
description: "React 19.2 brings <Activity> and useEffectEvent, new ideas for React state management arrive, and Vega OS debuts as a React Native-powered Linux OS."
url: https://www.callstack.com/events/deep-dive-building-react-native-app-for-vega-os
updated: 2026-10-24T08:39:19.567Z
---

# Building React Native App for Vega OS

React 19.2 brings <Activity> and useEffectEvent, new ideas for React state management arrive, and Vega OS debuts as a React Native-powered Linux OS.

_Livestream · 10/2/2025, 5PM - 7PM CEST · Online · Recording: 02:19:18 · Category: TV_

Organizer: Callstack

Speakers: Kewin Wereszczyński (Software Engineer @ Callstack), Szymon Chmal (Software Developer @ Callstack), Artur Morys-Magiera (Software Engineer @ Callstack)

[Watch the recording](https://www.youtube.com/watch?v=GJRWJiufZlk)

This week’s stream was packed with React 19.2 updates, new experimental APIs, and a first deep dive into the brand-new Vega OS powered by React Native. From `<Activity>` to building TicTacToe on a fresh platform, here’s what went down.

## React 19.2 updates

React 19.2 shipped with some exciting new features and experiments:

- New `<Activity>` component → hides parts of the tree without unmounting (preserves state & effects)
- `useEffectEvent` → a safer way to define event handlers inside effects
- Small but important discussions about `cacheSignal` and Partial Pre-rendering

**Why it matters:** React 19.2 keeps pushing towards better performance, state preservation, and safer APIs. Expect more refinements as React 19 matures.

## React State Management in 2025

One of the best posts this week dove into the future of [React state management](https://www.developerway.com/posts/react-state-management-2025). With signals, cache layers, and new primitives like `useEffectEvent`, managing state in React is evolving quickly.

**Why it matters:** State management has always been one of React’s trickiest parts; these patterns aim to make it simpler, safer, and more predictable.

## Vega OS

The biggest news of the week: [Vega OS](https://developer.amazon.com/apps-and-games/blogs/2025/09/announcing-vega-os).

- Built on React Native
- Linux-based
- Designed to power new types of devices

We spent the second half of the stream exploring Vega OS:

- Setting up a project & tools
- Running “Hello World”
- And finally, @artus9033 taking on the challenge to build TicTacToe inside Vega OS

**Why it matters:** Vega OS could be a game-changer for React Native, showing how RN can expand beyond mobile into whole new platforms.

## Final thoughts

Between React 19.2’s experiments, fresh state management ideas, and Vega OS making its debut, this week was very exciting.

Catch the full replay for demos, experiments, and a live coding session on Vega OS.
