Uploaded September 2025 | Updated September 2026, 2 days ago
Is zero-cost runtime styling in React Native possible?
At React Universe Conf 2025, Jacek Pudysz (CTO & Co-Founder at Codemask) takes us deep into the internals of React Native’s styling pipeline and shares the ongoing mission behind Unistyles.
Skip the intro ⏩ 0:39
🔹 How styles flow from JavaScript down to C++ and platform-specific layers through Fabric and JSI.
🔹 Why React Native’s built-in `StyleSheet` can be considered the true baseline of “zero-cost” runtime styling.
🔹 How Unistyles pushes beyond developer experience, using a C++ core and Nitro Modules to skip re-renders and recompute styles natively.
🔹 Benchmarks showing the performance gap between Unistyles and the native `StyleSheet`, and why the hunt isn’t over.
🔹 A look ahead at Uniwind, a new Tailwind-inspired runtime styling library for React Native, designed to deliver advanced features with near-`StyleSheet` performance.
This talk reveals both the engineering challenges and future opportunities of runtime styling in React Native, showing why the quest for zero-cost styling continues.
See you at another React Universe Conf 🎟️ clstk.com/46gnbxh
Follow React Universe Conf on X to stay up to date 🐦 https://x.com/reactuniverse_
Check out Callstack content 📚 clstk.com/4ggkK2r
Is zero-cost runtime styling in React Native possible?
At React Universe Conf 2025, Jacek Pudysz (CTO & Co-Founder at Codemask) takes us deep into the internals of React Native’s styling pipeline and shares the ongoing mission behind Unistyles.
Skip the intro ⏩ 0:39
🔹 How styles flow from JavaScript down to C++ and platform-specific layers through Fabric and JSI.
🔹 Why React Native’s built-in `StyleSheet` can be considered the true baseline of “zero-cost” runtime styling.
🔹 How Unistyles pushes beyond developer experience, using a C++ core and Nitro Modules to skip re-renders and recompute styles natively.
🔹 Benchmarks showing the performance gap between Unistyles and the native `StyleSheet`, and why the hunt isn’t over.
🔹 A look ahead at Uniwind, a new Tailwind-inspired runtime styling library for React Native, designed to deliver advanced features with near-`StyleSheet` performance.
This talk reveals both the engineering challenges and future opportunities of runtime styling in React Native, showing why the quest for zero-cost styling continues.
See you at another React Universe Conf 🎟️ clstk.com/46gnbxh
Follow React Universe Conf on X to stay up to date 🐦 https://x.com/reactuniverse_
Check out Callstack content 📚 clstk.com/4ggkK2r
