organize configuration by hardware machine

nix/system/worktop/darwin-configuration.nix

@@ -0,0 +1,64 @@
+{ config, pkgs, ... }:
+
+{
+
+  nixpkgs.config.allowUnfree = true;
+  # List packages installed in system profile. To search by name, run:
+  # $ nix-env -qaP | grep wget
+  environment.systemPackages =
+    [
+      pkgs.git-lfs
+      pkgs.vim
+      pkgs.iterm2
+      pkgs.obsidian
+      pkgs.syncthing
+      pkgs.slack
+      pkgs._1password
+      # wishlist
+      # LICEcap
+      # keycastr
+      # todo (unsupported on aarch64-darwin):
+      # pkgs.spotify
+      # pkgs.firefox
+      # pkgs.google-chrome
+    ];
+
+
+  # Use a custom configuration.nix location.
+  # $ darwin-rebuild switch -I darwin-config=$HOME/.config/nixpkgs/darwin/configuration.nix
+  # environment.darwinConfig = "$HOME/.config/nixpkgs/darwin/configuration.nix";
+
+  # Auto upgrade nix package and the daemon service.
+  services.nix-daemon.enable = true;
+  # nix.package = pkgs.nix;
+
+  # Create /etc/bashrc that loads the nix-darwin environment.
+  programs.zsh.enable = true; # default shell on catalina
+  # programs.fish.enable = true;
+
+  # We need this snippet to allow spotlight to find the applications installed
+  # by nix-darwin
+  system.activationScripts.applications.text = pkgs.lib.mkForce (
+    ''
+      rm -rf ~/Applications/Nix\ Apps
+      mkdir -p ~/Applications/Nix\ Apps
+      for app in $(find ${config.system.build.applications}/Applications -maxdepth 1 -type l); do
+        src="$(/usr/bin/stat -f%Y "$app")"
+        cp -r "$src" ~/Applications/Nix\ Apps
+      done
+    ''
+  );
+
+  system.keyboard = {
+    enableKeyMapping = true;
+    remapCapsLockToEscape = true;
+  };
+
+  system.defaults = {
+    finder.AppleShowAllExtensions = true;
+  };
+
+  # Used for backwards compatibility, please read the changelog before changing.
+  # $ darwin-rebuild changelog
+  system.stateVersion = 4;
+}