OPFS + Pyodide test harnessOPFS + Pyodide test harness

23rd June 2026

Tool OPFS + Pyodide test harness

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