Hello @Stephan_Mestach
Glad you got the setup working for you. I just wanted to point out that the dhis2-gateway in the bao-ap-docker setup is a part of setting up the analytics platform to work with DHIS2 using the Super BI app.
You can check how the Super BI app interacts with the gateway in its source code. You can also view the gateway API documentation through the Swagger UI available in your hosted gateway at http://your-hosted-gateway-url/superset-gateway/swagger-ui/index.html
Regards.