{
  lib,
  pkgs,
  top,
  ...
}:
let
  darwin-aarch-builder = top.nixunstable.lib.nixosSystem {
    system = "aarch64-linux";
    modules = [
      "${top.nixunstable}/nixos/modules/profiles/nix-builder-vm.nix"
      { virtualisation.host.pkgs = import top.nixunstable { system = "aarch64-darwin"; }; }
    ];
  };
  darwin-x86-builder = top.nixunstable.lib.nixosSystem {
    system = "x86_64-linux";
    modules = [
      "${top.nixunstable}/nixos/modules/profiles/nix-builder-vm.nix"
      { virtualisation.host.pkgs = import top.nixunstable { system = "aarch64-darwin"; }; }
    ];
  };
in {
  environment.systemPackages = with pkgs; [
    hms
  ];

  fonts.packages = with pkgs; [
    dejavu_fonts
    nerd-fonts.hack
  ];

  launchd.daemons.darwin-aarch-builder = {
    command = "${darwin-x86-builder.config.system.build.macos-builder-installer}/bin/create-builder";
    serviceConfig = {
      KeepAlive = true;
      RunAtLoad = true;
      StandardOutPath = "/var/log/darwin-aarch-builder.log";
      StandardErrorPath = "/var/log/darwin-aarch-builder.log";
    };
  };

  nix = {
    enable = true;
    buildMachines = [{
      hostName = "ssh-ng://builder@localhost";
      system = "aarch64-linux";
      maxJobs = 4;
      supportedFeatures = ["kvm" "benchmarch" "big-parallel"];
    }];
    gc.interval.Hour = 3;
    settings.auto-optimise-store = false; # Darwin bugs?
  };

  power.sleep = {
    allowSleepByPowerButton = true;
    computer = "never";
    display = 30;
  };

  programs = {
    zsh.enable = true;
    bash.enable = true;
  };

  system = {
    defaults = {
      CustomSystemPreferences = {
        ".GlobalPreferences" = {
          "com.apple.swipescrolldirection" = 0;
        };
      };
      finder = {
        AppleShowAllExtensions = true;
        AppleShowAllFiles = true;
        ShowExternalHardDrivesOnDesktop = true;
        ShowMountedServersOnDesktop = true;
        ShowPathbar = true;
        ShowRemovableMediaOnDesktop = true;
        ShowStatusBar = true;
      };
      LaunchServices.LSQuarantine = false;
      menuExtraClock = {
        Show24Hour = true;
        ShowDate = 2;
      };
      screencapture = {
        include-date = true;
        location = "~/Photos/Screeneries";
      };
      trackpad = {
        Dragging = false;
        TrackpadRightClick = true;
      };
    };
    startup.chime = false;
    stateVersion = 6;
  };

  time.timeZone = "America/Chicago";
}