2025 10 04 31 SHIVAY LAMBA CONGRESO REACT ALICANTE The international React js conference in Spain

on YouTube ↗33m

" summary

Demos show full websites and an offline question‑answer app actually running in-device, claiming WebAssembly plus WebGPU and WebLLM can run LLMs and heavy compute inside React Native. Concrete tools: Wasm3 (earlier, single‑linear‑memory limitation), Polygen converts WASM to C for ahead‑of‑time JSI bindings, Hermes lacks WASM, and the app uses a local vector store (SQLite) and an offline RAG with quen 3 quantis model. Performance is near‑native and integration works, with React Native at ~3 million weekly downloads.

AI-written summary · about

" chapters (8)

1. 0:00Introduction
2. 3:18WebAssembly for JS apps
3. 7:57React Native and JS engines
4. 15:46WebAssembly in React Native
5. 19:16Polyen for WebAssembly
6. 26:41AI with WebAssembly in RN
7. 30:34WebAssembly for AI tooling
8. 32:43Future possibilities

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