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pwasm 0.2a0

L4 · DeveloperOpen SourceSimon Willison's Blog· 10/1/2026

Shows AI's capability to enhance developer tools and accelerate low-level software development projects.

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Simon Willison released pwasm 0.2a0, a pure Python WebAssembly engine significantly improved by Claude Opus 5.5, now capable of running MicroPython and QuickJS.

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