Initial nix-darwin revision

darwin/darwin.nix

@@ -0,0 +1,37 @@
+{ pkgs, system, ... }: {
+  # List packages installed in system profile. To search by name, run:
+  # $ nix-env -qaP | grep wget
+  environment.systemPackages = [
+    pkgs.vim
+  ];
+
+  # Auto upgrade nix package and the daemon service.
+  services.nix-daemon.enable = true;
+  nix.package = pkgs.nix;
+
+  # Necessary for using flakes on this system.
+  nix.settings.experimental-features = "nix-command flakes";
+
+  # Create /etc/zshrc that loads the nix-darwin environment.
+  programs.zsh.enable = true;
+
+  # Used for backwards compatibility, please read the changelog before changing.
+  # $ darwin-rebuild changelog
+  system.stateVersion = 4;
+
+  nixpkgs = {
+    # TODO(spotlightishere): Make this configurable beyond a singular device.
+    hostPlatform = "aarch64-darwin";
+
+    # Custom packages.
+    # TODO(spotlightishere): Why does this need to be specified in both home-manager and globally?
+    overlays = [ (import ../pkgs/default.nix) ];
+  };
+
+  # Our singular user!
+  users.users.spot = {
+    description = "Spotlight Deveaux";
+    home = "/Users/spot";
+    shell = pkgs.zsh;
+  };
+}