WebAssembly beyond the browser

on YouTube ↗35m

" summary

Claim: WebAssembly modules compile once and run everywhere but current limits matter. Examples include compiling Rust to wasm32-wasi, running the same .wasm with wasmtime/wasmer while mapping host directories to write files, and packaging that .wasm into Docker (Docker 4.21+, containerd + runwasi) to run on Kubernetes. Missing pieces: WASI currently lacks standard sockets and threads, so HTTP is often handled by WAGI’s stdout/CGI model or frameworks like Spin. Results: faster startup, smaller binaries, deny‑by‑default sandboxing.

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" chapters (11)

1. 0:00WebAssembly beyond browser
2. 3:23WebAssembly on server
3. 7:16From hardware to WebAssembly
4. 8:20WebAssembly use cases
5. 11:07WebAssembly runtimes
6. 16:06Rust to WebAssembly demo
7. 19:58WebAssembly in Docker/K8s
8. 26:19HTTP with WAGI
9. 29:30Wazix POSIX extensions
10. 30:11Frameworks & language support
11. 34:26Conclusion

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