I went with MySQL. Once the database is setup, make sure that you can authenticate to the database.
After being able to login to the database, create a database/schema called pokeroguedb.
Select it as the default database and then run the sql queries from sqlqueries.sql. You should now be able to see all of the empty tables.
The docker compose file should automatically implement a container with mariadb with an empty database and the default user and password combo of pokerogue:pokerogue