adventofcode-2021/flake.nix

{
  outputs = { nixpkgs, ... }:
    let
      system = "x86_64-linux";
      pkgs = import nixpkgs { inherit system; };
    in {
      devShell."${system}" =
        pkgs.mkShell { buildInputs = with pkgs; [ ghc stylish-haskell ]; };
    };
}