Improve the developer experience to run the services
Currently, running the services from docker images is easy but running from the python code is not that simple: we have to go to the directory and launch `make run`, **after** having launched the required mongo db instance for example, and having specified all the environment variables in a `.env` file.

I think we could make it simpler and better documented.
Improve the developer experience to run the services: Currently, running the services from docker images is easy but running from the python code is not that simple: we have to go to the directory and launch `make run`, **after** having launched the required mongo db instance for example, and having specified all the environment variables in a `.env` file.

I think we could make it simpler and better documented.