Installing Nix Package Manager is easy. Just execute:

curl https://nixos.org/nix/install | sh

Your next login should include nix-env executable.

Install them by executing sh ./init.sh included in this repository.

You should all set at this point, fire nix-shell --pure for a pure environment which includes emacs and haskell related tools like hlint, hscolour etc...

Since it's not possible to wrap emacs with a default configuration, you should link included .emacs file to your HOME directory.

ln -sf <abs_path_to_.emacs_included> ~/.emacs