The default storage system for Linkurious is SQLite.
Configuring Linkurious to work with MySQL is a really easy procedure if you don't need to migrate data from SQLite.
Migrating data from SQLite to MySQL is possible but it is a procedure we would recommend only if restarting from scratch with MySQL is not a viable option.
The SQL file format from SQLite and MySQL is not exactly the same. If you need help with the procedure please contact us at support@linkurio.us.