Publishing WASM Wheels to PyPI for Use with Pyodide
Simon Willison's Weblog5 hours agoTutorialPyodide 314.0 removes a long-standing distribution bottleneck by allowing WebAssembly-compiled Python wheels to be published directly to PyPI, so any package author can now distribute Pyodide-compatible packages without Pyodide team involvement. Previously, the team manually built and hosted over 300 packages. Simon Willison celebrated by publishing luau-wasm — a Lua-based scripting language compiled to WASM — using Codex with GPT-5.5 to automate the packaging workflow.
luau-wasm 0.1a0
Simon Willison's Weblog5 hours agoReleaseSimon Willison has published luau-wasm 0.1a0, an early alpha release that packages the Luau scripting language (Roblox's typed Lua fork) compiled to WebAssembly as a Python wheel installable in Pyodide environments. The release accompanies a companion post detailing the process of publishing WASM wheels to PyPI for browser-based Python runtimes. This enables developers to embed a Luau interpreter inside Pyodide-powered, browser-native Python applications without leaving the WebAssembly sandbox.