My OI environment

oienv.nix

# Nix下的OI环境，主要是为了Haskell

let
  # 万一以后需要呢
  config = { allowUnfree = true; };

  pkgs = import <nixpkgs> { inherit config; };

in {
  # Base
  inherit (pkgs) nixfmt haskell-language-server ormolu;

  # GHC with other Haskell packages
  ghc = pkgs.haskellPackages.ghcWithPackages (pkgs: with pkgs; [ vector ]);
}