aoc-2022/flake.nix

{
  description = "Advent Of Code 2022";

  inputs = {
    nixpkgs.url = "nixpkgs/nixos-unstable";
  };

  outputs = { self, nixpkgs }:
    let

      forAllSystems = function:
        nixpkgs.lib.genAttrs [
          "x86_64-linux"
          "aarch64-darwin"
        ] (system: function nixpkgs.legacyPackages.${system});

    in
      {

        devShells = forAllSystems (pkgs: with pkgs; {
          default = (mkShell.override { stdenv = llvmPackages_16.stdenv; }) {
            buildInputs = [ ghc cabal-install haskell-language-server ];
          };
        });

      };
}