Simple set up for testing and development with python 3 or higher.

under windows: 

pip3 install flask

Open cmd and navigate in to the soilcracks folder.
An easy way to do this, is to navigate via explorer to ..\soilcracks and hold ctrl + shift while pressing the right button on you mouse. Left click on "open cmd here".

then run:

python __init__.py

Go to your browser and enter:

http://127.0.0.1:5000

This is the default localhost but check in the cmd output if the webapp was started under this ip.