Thanks for the info, I think I'll be using this SQLite library next time this comes up, then. I do think the modernc library is really cool, but there are some aspects of it that I already disliked, so I'm more than willing to see if the web assembly approach is better (it looks surprisingly tractable.)
One thing I tried to make sure, to avoid the pitfall modernc is having, is to make sure building "the WASM BLOB" is easily reproducible with widely available tools:
I do apply some light patches to SQLite, but so far they've always cleanly applied, and I can produce a new release within hours of being notified of SQLite releases.