My use-case for it is setting up some databases for development/testing. I have a script that does three things:
1. Run mysql_install_db if necessary 2. Recreate some dev/test databases, by running some DROP DATABASE IF EXISTS and CREATE DATABASE statements using mysql_embedded 3. Run mysqld That way, when mysqld comes up, the dev/test databases are guaranteed to exist and be empty. Without mysql_embedded/mariadb-embedded, it would be harder to make this work.
