Uploaded September 2025 | Updated September 2026, 1 hour ago
The Node API has become the industry standard for building native add-ons in Node.js. It’s engine-agnostic and ABI-stable, which makes it versatile enough for runtimes like Deno and Bun; and now, React Native.
At React Universe Conf 2025, Vladimir Morozov and Khalef Hosany from Microsoft share how they’ve integrated Hermes with Node API, and what this means for the future of React Native.
Skip the intro ⏩ 0:39
🔹 What Node API is, why ABI stability matters, and how it enables long-term module compatibility.
🔹 How React Native Windows adopted Node API to support multiple engines and languages.
🔹 A fork of Hermes reimplementing JSI on top of Node API, and the path to upstreaming this work.
🔹 Demos showing Node API modules compiled once and running across different environments, including Hermes.
🔹 What this unlocks: universal native modules, cross-runtime portability, and using the latest Hermes with older React Native versions.
This talk highlights how the combination of Hermes and Node API creates a more stable, extensible, and future-proof foundation for React Native development.
See you at another React Universe Conf 🎟️ clstk.com/45RiFX4
Follow React Universe Conf on X to stay up to date 🐦 https://x.com/reactuniverse_
Check out Callstack content 📚 clstk.com/3VElpku
The Node API has become the industry standard for building native add-ons in Node.js. It’s engine-agnostic and ABI-stable, which makes it versatile enough for runtimes like Deno and Bun; and now, React Native.
At React Universe Conf 2025, Vladimir Morozov and Khalef Hosany from Microsoft share how they’ve integrated Hermes with Node API, and what this means for the future of React Native.
Skip the intro ⏩ 0:39
🔹 What Node API is, why ABI stability matters, and how it enables long-term module compatibility.
🔹 How React Native Windows adopted Node API to support multiple engines and languages.
🔹 A fork of Hermes reimplementing JSI on top of Node API, and the path to upstreaming this work.
🔹 Demos showing Node API modules compiled once and running across different environments, including Hermes.
🔹 What this unlocks: universal native modules, cross-runtime portability, and using the latest Hermes with older React Native versions.
This talk highlights how the combination of Hermes and Node API creates a more stable, extensible, and future-proof foundation for React Native development.
See you at another React Universe Conf 🎟️ clstk.com/45RiFX4
Follow React Universe Conf on X to stay up to date 🐦 https://x.com/reactuniverse_
Check out Callstack content 📚 clstk.com/3VElpku
