Specifically, I'm trying to install Haste through nix.
I can see a hasteCompiler entry in nixpkgs/pkgs/top-level/haskell-packages.nix, and the appropriate .nix file in nixpkgs/pkgs/development/libraries/haskell/haste-compiler/ but I'm not sure how to install it. Specifically, none of
nix-env -i haste
nix-env -i haste-compiler
nix-env -i haskell-haste-compiler
do what I want, and nix-env -qa doesn't list anything containing the substring haste as an available package.
Any thoughts?