How to get this to work on Windows?

[arjenmarkus]

I have tried to follow the instructions (they are a trifle terse, so it required me to fill in some details ;)). I got as far as "pipenv run flask run" - then it was complaining about flask not being a command. This was in a Python (Anaconda) command window.

But more importantly, probably, I have no idea what the docker image is doing. And I cannot find any way of entering commands in it.
I know OF docker, but I have never used it in this fashion (certainly not on Windows) and I am simply stuck.