nix-config/hosts/dadarwin/configuration.nix

{ pkgs, ... }: 
{
      # List packages installed in system profile. To search by name, run:
      # $ nix-env -qaP | grep wget
      environment.systemPackages = with pkgs;
        [
          neovim
          kitty
          kittysay
          terraform
        ];

      programs.direnv.enable = true;
      # Auto upgrade nix package and the daemon service.
      services.nix-daemon.enable = true;
      # nix.package = pkgs.nix;

      # Necessary for using flakes on this system.
      nix.settings.experimental-features = "nix-command flakes";

      # Create /etc/zshrc that loads the nix-darwin environment.
      programs.zsh.enable = true;  # default shell on catalina
      # programs.fish.enable = true;

      # Used for backwards compatibility, please read the changelog before changing.
      # $ darwin-rebuild changelog
      system.stateVersion = 5;

      # The platform the configuration will be used on.
      nixpkgs.hostPlatform = "x86_64-darwin";
}