Mysql still supported?

Im trying to create a production instance of corteza with mysql, but the devops guide only shows how to set up for postgresql but the documentation mentions both postgresql and mysql.
Is my sql still supported? and if it is what do I do to set up a new corteza instance with mysql instead of postgresql?

Yes Multi-Image MySQL :: Corteza Docs
We changed the docs to show PGSQL by default because that’s the one we prefer and recommend.

thanks! Would the files in the my_proxy folder of the example be the same as the setup page? Or would those need some kind of modification?

They should be exactly the same; only the container and the DB_DSN .env variable should be changed