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The article announces the launch of WASI 0.3, which integrates async primitives natively into WebAssembly components via the Component Model, simplifying APIs and enabling better component composition.
WASI 0.3.0 (Preview 3) has been released, replacing earlier explicit streams and polling interfaces with native async functionality via the component model's future and stream types.
The team ported the Claude Code source code to the WebAssembly runtime, bundling Node.js and Python, and achieved running Claude Code directly in the browser, including a terminal UI and a local-like isolated execution environment.
The author compares the compact 35MB size of a WebAssembly-compiled Godot game engine to typical Docker base images, questioning why WASM adoption remains limited despite its significant size and deployment advantages.