The State Of Kotlin/Wasm

on YouTube ↗32m

" summary

Kotlin gets a new compiler built from scratch that generates Wasm binaries directly, targets include wasm JS for browser-hosted JS interop and wasm wiy for system-hosted VMs, and requires Wasm GC plus exception-handling proposals. Goals are sub‑second iterative compile times, incremental builds, small binaries and production optimization via a backend called bararan. Demos compile-and-run in Fleet, run on Node/Deno/wasmtime/wasmer and Cloudflare Workers, compos multiplatform UI shows ~2x speed vs JavaScript and some benchmarks approach JVM. Safari support is experimental.

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" chapters (16)

1. 0:00Kotlin/Wasm introduction
2. 0:45What is JetBrains and Kotlin
3. 2:53Kotlin multiplatform targets
4. 4:43Kotlin/Wasm compiler goals
5. 6:51Kotlin/Wasm for web apps
6. 9:22Compose/Wasm vs JavaScript
7. 11:54Kotlin/Wasm browser support
8. 13:24Demo: Kotlin/Wasm project
9. 15:16Demo: Host interop and debugging
10. 17:09Kotlin/Wasm beyond browser
11. 19:39Demo: WASI and system interfaces
12. 22:09Demo: Cloudflare Workers with Kotlin/Wasm
13. 23:35Closing and call to action
14. 24:19Q&A: Fun keyword
15. 25:42Q&A: Choosing WebAssembly VMs
16. 28:53Q&A: Compliance and VM bugs

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