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

  nix.settings = {
    experimental-features = [ "nix-command" "flakes" ];
    auto-optimise-store = true;
  };

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

  # Enable alternative shell support in nix-darwin.
  # programs.fish.enable = true;

  users.users.zynh = {
    name = "zynh";
    home = "/Users/zynh";
  };

  home-manager = {
    users = { "zynh" = import ./home.nix; };
    backupFileExtension = "backup";
  };

  # Set Git commit hash for darwin-version.
  system.configurationRevision = self.rev or self.dirtyRev or null;
  # $ darwin-rebuild changelog
  system.stateVersion = 5;


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