OPFS + Pyodide test harness
Mirrored from Simon Willison for archival readability. Support the source by reading on the original site.
23rd June 2026
I've been pondering if Datasette Lite - the Python Datasette application run entirely in the browser using Pyodide and WebAssembly - might be able to edit persistent SQLite files stored on the user's computer.
That's what OFPS (Origin Private File System) is for, so I had Claude Code for web build me this playground UI to try it out in different browsers.
Posted 23rd June 2026 at 6:58 pm
Recent articles
- Porting the Moebius 0.2B image inpainting model to run in the browser with Claude Code - 22nd June 2026
- sqlite-utils 4.0rc1 adds migrations and nested transactions - 21st June 2026
- Datasette Apps: Host custom HTML applications inside Datasette - 18th June 2026
This is a beat by Simon Willison, posted on 23rd June 2026.
browsers 105 pyodide 30 datasette-lite 22Monthly briefing
Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.
Pay me to send you less!
Discussion (0)
Sign in to join the discussion. Free account, 30 seconds — email code or GitHub.
Sign in →No comments yet. Sign in and be the first to say something.