Prisma

How can I make my docker-compose.yml use a different database?

I already have 1 Prisma project using Docker. Im setting up a 2nd project that needs to use a new database. Even though I choose to set a new database when I  `prisma init` it always points to the old one.

you can change the mysql container port and prisma connection port

PRISMA_CONFIG: |
        port: 4466
        databases:
          default:
            connector: mysql
            host: mysql
            port: 3306
            user: root

So is that 4466 and 3306? Can I just increment the numbers by 1 or are their rules around what numbers you can use?