Make WASM persistable

[gisborne]

Docs say WASM version only runs in memory.

Given that SQLite is available for WASM, even in the browser, it would be useful to make the wasm version persistent.

Most languages would have a good shot at running the WASM version immediately.

[infogulch]

To add some detail, the only reasonable SQLite persistence choice is powered by a new browser feature, Origin-Private File System (OPFS): https://sqlite.org/wasm/doc/trunk/persistence.md

[gisborne]

I’m at least as interested in WASM outside the browser as in, fwiw. It’s fair to say that most languages can call into WASM now. Within a year, many/most languages will be able to run inside WASM also.

[zh217]

This is currently out of scope (and the WASM ecosystem isn't mature enough). If someone wants to contribute, please reopen and we can discuss it here.