I didn't know about this, glad I read your comment. Stack/cabal is painful.
https://github.com/Gabriel439/haskell-nix
More free resources about learning Haskell:
1. https://github.com/allenleein/brains/blob/master/Zen-of-Func...
2. https://github.com/allenleein/brains/tree/gh-pages/Zen-of-Fu...
Haskell Programming From First Principle (The most popular in community)
https://github.com/allenleein/brains/blob/master/Zen-of-Func...
I would certainly try it but it works kind of the same as gotour: if you want a worked example of a characteristic of the language for a specific thing it's great, if you are trying to get your hands around the language by working through it 'cover to cover' in a sense I felt like I wasn't achieving the level of understanding I hoped for.