Turbo application directory tree skeleton is below:
├── app-server ├── conf ├── db ├── helpers ├── models └── test
models is made of datebase sechema, each package in
models represents one mongodb databse instance.
app-server is a web app, not python package, turbo application can have one or many app-server, each with different name.
helpers is model instance, responsible for business logic.
db is support for mongodb connections