pwasm 0.2a0
- ID
- 31941
- Status
- new
- Published
- 02 Oct 2026, 1:10 AM
- Fetched
- 06 Oct 2026, 8:04 AM
- Provider
- Simon Willison
- Category
- developer-ai
- Original URL
- https://simonwillison.net/2026/Oct/1/pwasm/
- Source URL
- https://simonwillison.net/atom/everything/
Excerpt
Release: pwasm 0.2a0 pwasm is one of my folly projects - an entirely vibe-coded pure Python WebAssembly engine that I built in January during my first bout of AI mania. I hadn't touched it since January, so I decided to let Claude Opus 5.5 loose on it and see if it could make any significant improvements: Evaluate current state of pwasm - then consider what it would take to get the MicroPython and micro JavaScript experiments from the research repo working under it - and what it would take to speed it up 42 commits later (with minimal follow-up prompting) it now handles almost all of the WASM specification, and the wheel from PyPI bundles working WASM builds of MicroPython, QuickJS and Micro QuickJS. I wouldn't trust this thing at all - hence the alpha version tag - but it's interesting seeing how today's models can improve on the work of models from 10 months ago. Tags: python, webassembly, vibe-coding
Summary
No summary yet. It will appear after the daemon summarizes this item.