nix: start darwin configuration

preparation for macOS

modules/darwin/applications.nix

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+{ config, lib, pkgs, ... }:
+
+{
+  # dock
+  system.defaults.dock.autohide = true;
+  system.defaults.dock.autohide-delay = 0.2;
+  system.defaults.dock.autohide-time-modifier = 0.2;
+  system.defaults.dock.mineffect = "scale";
+  system.defaults.dock.orientation = "left";
+  system.defaults.dock.show-recents = true;
+  system.defaults.dock.tilesize = 48;
+  system.defaults.dock.persistent-apps = [
+    "${pkgs.firefox}/Applications/Firefox.app"
+    "${pkgs.kitty}/Applications/Kitty.app"
+    "/System/Applications/Finder.app"
+  ];
+
+  # finder
+  system.defaults.finder = {
+    AppleShowAllExtensions = true;
+    AppleShowAllFiles = true;
+    FXEnableExtensionChangeWarning = false;
+    FXPreferredViewStyle = "clmv";
+    FXRemoveOldTrashItems = true;
+    NewWindowTarget = "Home";
+    ShowStatusBar = true;
+    _FXShowPosixPathInTitle = true;
+    _FXSortFoldersFirst = true;
+
+    CreateDesktop = true; # desktop icons
+    ShowHardDrivesOnDesktop = true;
+    ShowExternalHardDrivesOnDesktop = true;
+    ShowMountedServersOnDesktop = true;
+    ShowRemovableMediaOnDesktop = true;
+  };
+
+  # activity monitor
+  system.defaults.ActivityMonitor = {
+    IconType = 0;
+    OpenMainWindow = true;
+    ShowCategory = 100;
+    SortColumn = "CPUUsage";
+    SortDirection = 0;
+  };
+
+  # hotkey daemon
+  services.skhd.enable = true;
+}

modules/darwin/desktop.nix

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+{ config, lib, pkgs, ... }:
+
+{
+
+  # appearance
+  system.defaults.NSGlobalDomain.AppleInterfaceStyle = "Dark";
+  system.defaults.NSGlobalDomain.AppleShowScrollBars = "WhenScrolling";
+  system.defaults.WindowManager.EnableStandardClickToShowDesktop = true;
+  system.startup.chime = true;
+
+  system.defaults.NSGlobalDomain.NSDisableAutomaticTermination = true;
+  system.defaults.NSGlobalDomain.NSDocumentSaveNewDocumentsToCloud = false;
+
+  # login
+  system.defaults.loginwindow.GuestEnabled = false;
+  system.defaults.screensaver.askForPassword = true;
+
+  # control center
+  # 18 = show in menubar, 24 = put in control center
+  system.defaults.controlcenter = {
+    Display = 18;
+    FocusModes = 18;
+    NowPlaying = 18;
+    Sound = 18;
+
+    Bluetooth = 24;
+    AirDrop = 24;
+
+    BatteryShowPercentage = true;
+  };
+
+  # clock
+  system.defaults.menuExtraClock = {
+    Show24Hour = false;
+    ShowAMPM = true;
+    ShowDayOfMonth = true;
+    ShowDayOfWeek = true;
+  };
+
+  # mission control
+  system.defaults.dock.expose-animation-duration = 0.2;
+
+  # spaces
+  system.defaults.dock.mru-spaces = false; # dont rearange spaces based on usage
+  system.defaults.spaces.spans-displays = true; # displays have different spaces
+  system.defaults.NSGlobalDomain.AppleSpacesSwitchOnActivate = true;
+}

modules/darwin/hardware.nix

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+{ config, lib, pkgs, ... }:
+
+{
+  power = {
+    sleep.computer = "never";
+    sleep.display = 5;
+  };
+
+  security.pam.enableSudoTouchIdAuth = true;
+
+  networking.dns = [
+    "1.1.1.1"
+  ];
+
+  # keyboard
+  system.defaults.NSGlobalDomain = {
+    KeyRepeat = 1;
+    NSAutomaticCapitalizationEnabled = false;
+    NSAutomaticDashSubstitutionEnabled = false;
+    NSAutomaticInlinePredictionEnabled = true;
+    NSAutomaticPeriodSubstitutionEnabled = false;
+    NSAutomaticQuoteSubstitutionEnabled = false;
+    NSAutomaticSpellingCorrectionEnabled = false;
+  };
+
+  system.keyboard.remapCapsLockToControl = true;
+  system.keyboard.swapLeftCtrlAndFn = true;
+  system.defaults.NSGlobalDomain.ApplePressAndHoldEnabled = false;
+  
+  system.defaults.hitoolbox.AppleFnUsageType = "Do Nothing";
+
+  # mouse
+  system.defaults.".GlobalPreferences"."com.apple.mouse.scaling" = -1.0; # mouse acceleration
+
+}

modules/darwin/nix.nix

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+{ config, lib, pkgs, ... }:
+
+{
+  # auto upgrade nix package and the daemon service.
+  services.nix-daemon.enable = true;
+
+  # nix auto garbage collection
+  nix.gc = {
+    automatic = true;
+    interval = { Weekday = 0; Hour = 0; Minute = 0; };
+    options = "--delete-older-than 7d";
+  };
+
+  # make nix applications use alias instead of symlinks for compatability
+  system.activationScripts.applications.text = let
+    env = pkgs.buildEnv {
+      name = "system-applications";
+      paths = config.environment.systemPackages;
+      pathsToLink = "/Applications";
+    };
+  in
+    pkgs.lib.mkForce ''
+    # Set up applications.
+    echo "setting up /Applications..." >&2
+    rm -rf /Applications/Nix\ Apps
+    mkdir -p /Applications/Nix\ Apps
+    find ${env}/Applications -maxdepth 1 -type l -exec readlink '{}' + |
+    while read -r src; do
+      app_name=$(basename "$src")
+      echo "copying $src" >&2
+      ${pkgs.mkalias}/bin/mkalias "$src" "/Applications/Nix Apps/$app_name"
+    done
+        '';
+}