Database setup

1. Create an empty MySQL or MariaDB database using utf8mb4.
2. Create a dedicated database user with a strong password.
3. Grant that user the privileges needed to create and alter tables and to read and write application data.
4. Record the host, port, database name, username, and password for the installer.

Do not reuse the database administrator account. In managed database services, also allow network access from the application and worker hosts.