ESP-MDF enviroment variable

I want to use ESP-MDF and mongooseOS

I know the mangoose-os is build on top ESP-IDF, but I don’t know its relationship with ESP-MDF, I guess none.

I’m thinking in add ESP-MDF as a local library, but in its documentation says that I need to set up an environment variable, MDF_PATH. Since mongoose-os uses docker to compile the code, I imagine that I need to set this inside docker.

is my reasoning right? Is there any other way to do this?