Running WASM in React Native apps

on YouTube ↗30m

" summary

Proof of concept wraps wasmer native module and hits ~1.8 million fib ops/sec on iOS versus ~23 million in Safari, slowed by iOS JIT limits and JS–WASM bridging; Callstack’s current approach compiles WASM ahead‑of‑time to C using wasm2c / wabt (polygen), embeds the result as a native library, and shows throughput overtaking Safari past Fibonacci n≈13; polygen works on iOS today, simplifies consuming Rust/Go libs, and plans threading, SIMD, GC and multiple runtimes.

AI-written summary · about

" chapters (8)

1. 0:00Introduction and motivation
2. 1:03Speaker backgrounds
3. 2:11React Native overview
4. 3:23Current state of development
5. 4:12Extending React Native
6. 4:45TurboModule limitations
7. 12:21Introducing Polygen
8. 28:32Future goals and conclusion

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