MariaDB Databases

I’ve circled back to learning about MariaDB Databases. My ISP (IONOS) is now promoting version 10, so here goes with a new project in creating the database; accessing; developing; integrating other things like websites:

What is MariaDB?
Creating a MariaDB within IONOS.
Accessing the database from my Mac Endpoint.
Confirming version of MariaDB.
System checks (Linux) and resource ref