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Callstack Engineers

@callstackio

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We enable engineering teams to scale apps across mobile, web, and TV. Core Contributors to React Native. Members of React Foundation. Created @reactuniverse_

Wroclaw, Poland
Joined August 2016
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@callstackio
Callstack Engineers
19 hours
React Native 0.83 shipped with no user-facing breaking changes, which sounds almost suspicious 🤔 @lukasz_app and @Q1w1N went live to unpack what actually changed, what’s ready for production, and what’s still experimental. Recording & show notes ➡️
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callstack.com
Join Łukasz Kewin for a walkthrough of React Native 0.83, recent ecosystem news, and hands-on demos.
@lukasz_app
Łukasz Chludziński
1 day
React Native 0.83 dropped with no breaking changes, so of course we went live to see what’s hiding underneath.
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@callstackio
Callstack Engineers
21 hours
Switching between Storybook and your app is now easier than ever. With Metro updates, the new Storybook helper, and Expo env vars, the workflow is insanely smooth. Read our new guide by @Danny_H_W : https://t.co/gOlWlrhuB3 It covers everything you need to know!
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@callstackio
Callstack Engineers
2 days
React Native 0.83: No breaking changes
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@callstackio
Callstack Engineers
2 days
What's changed since@expo became the default React Native framework? @jonsamp discusses the framework's evolution, why the hobby tool perception is outdated, and details the launch of the new Expo App Awards. Full interview ⬇️
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@callstackio
Callstack Engineers
3 days
In September, @thymikee and @o_kwasniewski took the stage at GOSIM Hangzhou in China. Their talk on Native Apps Without a Build Step is now available on the @gosimfoundation YouTube channel and on our page. Check it out:
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callstack.com
Discover Rock by Callstack: the open, modular, self-hosted framework for React Native. Built to help teams scale, migrate, and deliver faster in the evolving React Native ecosystem.
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@AmazonAppDev
Amazon Developer
3 days
🎉 Announcing: The Ultimate Guide to TV Development— your guide to React Native TV Development Co-authored with @callstackio, this guide distills years of OTT app expertise into a single resource. From 10‑foot UI concepts to focus‑driven navigation and performance
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@callstackio
Callstack Engineers
4 days
The Ultimate Guide to React Native TV Development 2026 is live! It’s a detailed look at 10‑foot UI, navigation, performance, architecture, and multiplatform delivery, co‑authored with @AmazonAppDev engineers. Download the full guide and explore what’s inside ⬇️
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@callstackio
Callstack Engineers
4 days
Building for @MetaQuestVR may seem like a big leap, but most React Native workflows carry over with almost no changes. In this clip, @jaworek3211 explains why familiar APIs, tooling, and development patterns still work and where the few gaps appear when Google-dependent features
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@callstackio
Callstack Engineers
5 days
Building React Native UIs for @MetaQuestVR means rethinking familiar assumptions. VR windows resize freely, text needs to remain readable at a distance, and hover/press feedback becomes essential for orientation. @jaworek3211’s article walks through the mindset shift needed to
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@callstackio
Callstack Engineers
8 days
Catch @ChmalSzymon at @warsawjs! Szymon will talk about Harness, a new testing framework. Curious about its possibilities? Join us this Tuesday in Warsaw or watch it live on the WarsawJS YouTube channel at 7 PM CET!
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@callstackio
Callstack Engineers
9 days
React Native on Meta Quest
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@callstackio
Callstack Engineers
9 days
It's Hermes V1 now. @cortinico (@Meta) explains that V1 (experimental in RN 0.82) finally ships 2 years of performance boosts. It's not the default yet; you'll need to "build from source" to test it, which is needed for feedback. V1 aims to be the stable default in 2-3 releases.
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@callstackio
Callstack Engineers
10 days
This Friday at @DSS_conference in Warsaw, @thymikee will share how to run on-device LLMs in React Native using Vercel’s AI SDK. Catch the talk at 5:25PM!
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@callstackio
Callstack Engineers
10 days
You've seen @jaworek3211 write about @MetaQuestVR on our blog, but how about joining him and actually seeing through the VR lens on a live stream? See you tomorrow!
@lukasz_app
Łukasz Chludziński
10 days
Meta Quest + React Native + live-coding inside the headset. This is going to be fun. Join me @jaworek3211 and @Q1w1N tomorrow at 4 PM CET as we walk through the full Quest dev workflow: https://t.co/a0078T8v0T
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