I think this is more of a return to the status quo. 10+ years ago there were 2 big names in open source embedded databases, Berkley DB, and SQLite. Then the

I think this is more of a return to the status quo. 10+ years ago there were 2 big names in open source embedded databases, Berkley DB, and SQLite. Then the NoSQL fad hit, and a bunch of new key value stores emerged. Now developers are remembering what made relational databases great. Even when you don't need relational features, SQLite is battle tested, and a great choice for storing key, value pairs.