React Universe Conf | Sept 2-4, 2025
@reactuniverse_
Bringing Worlds Together Sept 2-4, 2025 | Wrocław, Poland Powered by @callstackio 💜
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Tired of rewriting CSS for React Native? @huxpro introduces Lynx, a framework-agnostic engine. It features native CSS support (port web CSS directly) and a two-thread model (BTS/MTS) for better hybrid UI. He also discusses React as a spec & community Vue/Svelte ports ⬇️
Node-API for React Native wasn't built in a weekend. Khalef Hosany (@Microsoft) & @kraenhansen (@MongoDB) detail the community effort, from a Windows-specific prototype to a public standard. They discuss "nerd sniping" & why they need your feedback now ⬇️
React Native is 10 years old, but stability is the new hot topic. @chris_trag & @moyessa (@Amazon) argue stable core just means more expansion (TVs, AR, Web). This puts a huge burden on library devs. They explain why brownfield is the real path to adoption ⬇️
Meet Uniwind! @jpudysz (@codemaskcom) discusses his new, blazing-fast styling library for Tailwind fans in React Native. He explains why he built it, how it shares the same core as Unistyles (which isn't going away!), and the power of JSI ⬇️
How do you teach an AI to write better code? @FernandoTheRojo (@vercel) shares how he uses his own talk slides to train AI on composition. PLUS, he gives the scoop on the upcoming native v0 app and his AI-driven workflow ⬇️
What does a Developer Advocate actually do? @anisha_malde (@AmazonAppDev) pulls back the curtain on DevRel. It's not just talks; it's being "Developer Zero”, testing APIs, and acting as the developer's best friend to add the final salt and spice ⬇️
Is AI just "crypto rubbish"? @mattpocockuk shares his journey from skeptic to believer. Then, @SzymonRybczak (@callstackio) tackles AI's privacy problem with react-native-ai, bringing secure, offline LLMs to your mobile app ⬇️
How do you create software that runs the world and lasts till 2050? @DRichardHipp, the creator of SQLite, shares its origin story, the power of aviation-grade testing, and why it's so reliable ⬇️
When will we get React Native 1.0? @grabbou (@callstackio) discussed the roadmap. Plus, @mrousavy (@margelo_com) explains why Nitro isn't just "faster Turbo Modules" but a fundamentally different, high-performance alternative ⬇️
Stop recompiling native modules! Vladimir Morozov (@Microsoft) & @mani3xis (@callstackio) explain how Node-API brings ABI stability to React Native, ending the update nightmare and allowing polyglot modules (Rust, Go) ⬇️
“Learn once, write anywhere” is the React motto, but what does it really take to deploy across mobile, web, desktop, AR/VR & TVs? @chris_trag, @kadikraman, @gorhom, @Danny_H_W and Khalef Hosany share the tradeoffs, tools & patterns behind building apps for every device.
From @expo apps to @GraphQL servers to publishing packages - @cpojer demonstrates how good defaults and open source tooling let you focus on your product instead of endless setup decisions.
Cross-platform at scale is more than “just add React Native". @risu_rene (@zalando) shows how his team is migrating the Zalando app: brownfield integration, React Strict DOM, and unifying patterns across web & mobile.
Fastest list in React Native & React DOM? Legend List v2. @jmeistrich (Legend / Bravely) reveals the optimizations behind it: signals, minimized renders, and platform-specific tricks for web & mobile.
Distributed web dev is standard. But what about mobile? @Zackary_Chapple (@ZephyrCloudIO) shows how Re.Pack 5 + Module Federation unlock true distributed mobile development, with independent modules, release velocities & instant rollbacks.
Async operations don’t have to mean flickering UIs and messy state management. @aurorascharff (Crayon Consulting) shows how concurrent rendering + Actions fix these pain points in React 19, and what’s next with View Transitions.
At HelloFresh, migrating existing iOS and Android apps to React Native meant rethinking how to deliver consistent cross-platform UI at scale. @OhansEmmanuel presents a battle-tested case study of how GenAI accelerated cross-platform React Native adoption.
Formula: @AmazonAppDev × @reacuniverse_ = coffee + smiles + dev talks 💜
Throwback to @reactuniverse_ few weeks ago — such a great time connecting with you all! We’ll be sharing some of our favorite moments over the next few weeks. Next stop: #ReactConf2025 😎 conf.react.dev
React Native is moving beyond single-threaded JavaScript. @_tjzel (@swmansion) showed how react-native-worklets unlocks concurrent JavaScript, pushing single-threaded JS to its multithreading limits.
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