These are solutions the the Functional Programming course from the University of Freiburg, summer 2019.
The corresponding repository from the Chair of Programming Languages is: https://github.com/proglang/FunctionalProgramming/
All the important code is in the src
folder with modules for each exercise sheet and submodules for each exercise.
This is not mandatory, but I am using Visual Studio Code because of the really nice Language Server Protocol it supports. The backend is the Haskell IDE Engine.
And of course I am using Stack because this seems to be the standard nowadays.