{
  nix.enable = true;

  system = {
    primaryUser = "thomas";

    # INFO: Using Kanata for this now.
    # keyboard = {
    #   enableKeyMapping = true;
    #   userKeyMapping = [
    #     # remap caps lock to escape
    #     { HIDKeyboardModifierMappingSrc = 30064771129; HIDKeyboardModifierMappingDst = 30064771113; }
    #     # remap left control to left command
    #     { HIDKeyboardModifierMappingSrc = 30064771296; HIDKeyboardModifierMappingDst = 30064771296; }
    #     # remap left command to left control
    #     { HIDKeyboardModifierMappingSrc = 30064771299; HIDKeyboardModifierMappingDst = 30064771296; }
    #     # remap right command to right control
    #     { HIDKeyboardModifierMappingSrc = 30064771303; HIDKeyboardModifierMappingDst = 30064771300; }
    #   ];
    # };

    defaults = {
      # TODO: to make <C-Space> work, we need to disable these
      # hotkeys, but I don't know if that's possible with nix-darwin
      # Preferences -> Keyboard -> Keyboard Shortcuts -> Input Sources
      # "com.apple.symbolichotkeys" = {
      #   "60" = 0; 
      #   "61" = 0;
      # };

      SoftwareUpdate.AutomaticallyInstallMacOSUpdates = true;

      dock = {
        autohide = true;
        expose-group-apps = true;
        orientation = "bottom";
        enable-spring-load-actions-on-all-items = false;
        expose-animation-duration = 0.0;
        launchanim = false;
        mineffect = null;
        mru-spaces = false;
        persistent-apps = [ ];
        show-recents = false;
        static-only = true;
        tilesize = 32;
        wvous-bl-corner = 10; # put display to sleep
        wvous-br-corner = 1; # quick note
        wvous-tl-corner = 1; # disabled
        wvous-tr-corner = 1; # disabled
      };

      finder = {
        AppleShowAllExtensions = true;
        AppleShowAllFiles = true;
        CreateDesktop = true;
        _FXShowPosixPathInTitle = true;
        FXEnableExtensionChangeWarning = false;
        FXPreferredViewStyle = "clmv";
        QuitMenuItem = true;
        ShowPathbar = true;
        ShowStatusBar = true;
      };

      loginwindow = {
        DisableConsoleAccess = false;
        GuestEnabled = false;
        LoginwindowText = null;
        PowerOffDisabledWhileLoggedIn = false;
        RestartDisabled = false;
        RestartDisabledWhileLoggedIn = false;
        SHOWFULLNAME = true;
        ShutDownDisabled = false;
        ShutDownDisabledWhileLoggedIn = false;
        SleepDisabled = false;
        autoLoginUser = null;
      };

      NSGlobalDomain = {
        AppleInterfaceStyle = "Dark";
        AppleKeyboardUIMode = 3;
        ApplePressAndHoldEnabled = false;
        AppleShowAllExtensions = true;
        AppleShowAllFiles = true;
        KeyRepeat = 1;
        InitialKeyRepeat = 12;
        NSAutomaticCapitalizationEnabled = false;
        NSDocumentSaveNewDocumentsToCloud = true;
        NSNavPanelExpandedStateForSaveMode = true;
        NSNavPanelExpandedStateForSaveMode2 = true;
        NSWindowResizeTime = 0.001;
        PMPrintingExpandedStateForPrint = true;
        PMPrintingExpandedStateForPrint2 = true;
        # WebKitDeveloperExtras = true;
        _HIHideMenuBar = false;
        "com.apple.swipescrolldirection" = true;
        # "com.apple.BezelServices" = 5;
      };

      screencapture.location = "/tmp";

      screensaver.askForPassword = true;

      trackpad = {
        ActuationStrength = 0;
        Clicking = true;
        Dragging = null;
        FirstClickThreshold = 1;
        SecondClickThreshold = 1;
        TrackpadRightClick = null;
        TrackpadThreeFingerDrag = true;
      };

      WindowManager.StageManagerHideWidgets = true;
      WindowManager.StandardHideDesktopIcons = true;
      WindowManager.StandardHideWidgets = true;
    };

    rosetta.enable = true;
  };

  security.pam.services.sudo_local.touchIdAuth = true;
  security.pam.enablePamReattach = true;
}