app/core/config.py:19:    DATABASE_URL: str = "postgresql+psycopg://mailer:mailer_dev_pw@localhost:5432/bulkmailer"
.env:17:DATABASE_URL=postgresql+psycopg://mailer:mailer_dev_pw@localhost:5432/bulkmailer
.env.example:17:DATABASE_URL=postgresql+psycopg://mailer:mailer_prod_pw@postgres:5432/bulkmailer