restructure hosts

hosts/darwin/default.nix

@@ -0,0 +1,40 @@
+{
+  pkgs,
+  config,
+  lib,
+  inputs,
+  ...
+}: {
+
+  imports = [
+  ];
+
+  # base system package install list
+  environment.systemPackages = with pkgs; [
+    wget
+    curl
+    rsync
+    git
+    age
+    fzf
+    neofetch
+    usbutils
+    pciutils
+    python3
+    vim
+    lf
+    btop
+    powertop
+  ];
+
+  # set timezone
+  time.timeZone = "America/Chicago";
+
+  # allow proprietary packages
+  nixpkgs.config.allowUnfree = true;
+
+  # enable flakes
+  nix.settings.experimental-features = ["nix-command" "flakes"];
+  users.defaultUserShell = pkgs.zsh;
+
+}