Are logs all you need for durable workflows? I'm confused here. How'd persist and query nested or related data over logs? By logs I assume you mean something like elasticsearch or meilisearch?
I assume they meant a log like a WAL. A WAL should be (quite literally?) all you need for durable workflows.
A distributed WAL (to survive a machine death) would also probably be something I'd want, and … something I'm not sure you're getting directly from SQLite.
I read the parents comment as sarcasm and not a serious suggestion.
Log as in the structure.
Pretty much every durable system has an intent log of some sort. The log provides durability, the database system just integrates that log into a more queryable format.