source: simon willison: luau-wasm 0.1a0
level: technical
simon willison announced the release of luau-wasm 0.1a0 on june 13, 2026. this package bundles the luau language into a webassembly wheel that works with pyodide. luau is a fast, embeddable scripting language derived from lua, often used in game development and other performance-sensitive contexts. by compiling it to webassembly, developers can now run luau code directly in the browser through pyodide's python environment.
the release follows willison's recent exploration of publishing wasm wheels to pypi for pyodide. pyodide is a python distribution for the browser that includes a foreign function interface to javascript. packaging native code as webassembly wheels allows python libraries with c extensions to run in the browser without modification. luau-wasm demonstrates this approach by making a non-python language available inside pyodide, expanding the range of tools accessible in web-based data science and development environments.
this release is an early alpha version, indicating it is still under development. the package is available on pypi and can be installed in pyodide using micropip. it opens possibilities for running luau scripts alongside python in jupyterlite or other browser-based notebooks. the integration could be useful for tasks that benefit from luau's performance characteristics or for developers who want to combine python's ecosystem with luau's scripting capabilities.
why it matters: it shows how webassembly wheels can bring non-python runtimes into browser-based python environments, broadening the tools available for interactive computing and data science.
source: simon willison: luau-wasm 0.1a0