I built my own little demo page here: https://tools.simonwillison.net/sqlite-wasm

With the help of Claude, though it incorrectly hallucinated some of the details despite me pasting in documentation: https://gist.github.com/simonw/677c3794051c4dfeac94e514a8e5b...

This would run on client side I presume? Where the data would go?

Okay that's listed here: https://sqlite.org/wasm/doc/trunk/persistence.md

EDIT: Self answered.