Wasm I/O 2025 - Barcelona, 27-28 March Slides and repo: https://github.com/launchscout/wasmio_2025 The OTP platform that powers Erlang and Elixir is a great way to build reliable, self-healing systems that’s been proven in production for decades. Wasmex is a library that lets us host WebAssembly Components in Elixir so we can benefit from all the OTP goodies to build bullet proof WASM. We’ll start the talk with a brief description of OTP focusing on how supervised processes work and the “let it crash” core concept. After that we’ll talk about how it pairs perfectly with WebAssembly components so we can build reliable systems to host our WASM code. We’ll illustrate this with an example of how we might use WebAssembly components to extend an Elixir system. No prior knowledge of Elixir will be assumed.