[freedan42x@Nix-Chan:~]$ nix-env -i -f shell.nix

error: 'f' at /home/freedan42x/shell.nix:7:7 called without required argument 'hi-file-parser', at /nix/var/nix/profiles/per-user/root/channels/nixos/pkgs/development/haskell-modules/make-package-set.nix:87:27