~/talk

Supervising your WebAssembly Components with Wasmex

Talkat Wasm I/O 2025 · 2025-03-27..03-28· [web-platform, rust]
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slides:none on file

Claims that Wasmex 0.10 lets Elixir run supervised WebAssembly Components using wasmtime via rustler and wasmtime, mapping WIT types to Elixir types and generating idiomatic call functions from a macro. Demonstration builds a chat component (JavaScript module) wired to Phoenix LiveView and OTP supervision, intentionally crashes on a secret word and the supervisor restarts the component so the service keeps running. Roadmap items include resources, finer capability config, and preopens.

AI-written summary · about

  1. 0:00Introduction
  2. 1:07What is Elixir
  3. 8:48Phoenix Live View
  4. 12:20Introducing Wmex and WASM
  5. 15:34Building WASM chat
  6. 17:17Consuming WASM in Elixir
  7. 20:55Resilience with crashes
  8. 23:12Future of Wmex and WASM
  9. 25:16Q&A
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