update nix

modules/darwin/user/default.nix

@@ -0,0 +1,23 @@
+{ config, lib, namespace, pkgs, ... }:
+let
+  inherit (lib) types mkIf;
+  inherit (lib.${namespace}) mkOpt;
+
+  cfg = config.${namespace}.user;
+in
+{
+  options.${namespace}.user = with types; {
+    name = mkOpt str "evanreichard" "The name to use for the user account.";
+    email = mkOpt str "evan@reichard.io" "The email of the user.";
+    fullName = mkOpt str "Evan Reichard" "The full name of the user.";
+    uid = mkOpt (types.nullOr types.int) 501 "The uid for the user account.";
+  };
+
+  config = {
+    users.users.${cfg.name} = {
+      uid = mkIf (cfg.uid != null) cfg.uid;
+      shell = pkgs.bashInteractive;
+      home = "/Users/${cfg.name}";
+    };
+  };
+}