You can adjust your database-config.yml like following to have a local database without mysql.
Code (YAML):
# Configuration settings for database connection
#
# host: The hostname or IP address of the database server.
# port: The port number on which the database server is listening.
# databaseName: The name of the database to connect to.
# tableCreation: The mode for table creation (e.g., 'update' or 'create').
# username: The username used to authenticate with the database server.
# password: The password used to authenticate with the database server.
# showSQL: Whether to show SQL statements (e.g., 'true' or 'false').
# entityAnnotatedClassParentPath: The parent path for entity annotated classes.
host
: ''
port
: 3306
databaseName
: 'aomultiverse'
databaseType
: 'h2'
tableCreation
: 'update'
username
: 'sa'
password
: ''
showSQL
: 'false'
entityAnnotatedClassParentPath
: 'database.entities'