fixed nix-darwin building

modules/darwin-modules/default.nix

@@ -2,5 +2,7 @@
 {...}: {
   imports = [
     ./home-manager
+    ./users.nix
+    ./system.nix
   ];
 }

modules/darwin-modules/system.nix

@@ -0,0 +1,27 @@
+{self, ...}: {
+  system.configurationRevision = self.rev or self.dirtyRev or null;
+
+  nix = {
+    gc = {
+      automatic = true;
+      interval = [
+        {
+          Hour = 4;
+          Minute = 15;
+          Weekday = 7;
+        }
+      ];
+      options = "--delete-older-than 7d";
+    };
+    optimise = {
+      automatic = true;
+      interval = [
+        {
+          Hour = 4;
+          Minute = 15;
+          Weekday = 7;
+        }
+      ];
+    };
+  };
+}

modules/darwin-modules/users.nix

@@ -0,0 +1,20 @@
+{
+  lib,
+  config,
+  ...
+}: let
+  host = config.host;
+in {
+  users = {
+    users = {
+      leyla = {
+        name = lib.mkForce host.users.leyla.name;
+        home = lib.mkForce "/home/${host.users.leyla.name}";
+      };
+      ester = {
+        name = lib.mkForce host.users.ester.name;
+        home = lib.mkForce "/home/${host.users.ester.name}";
+      };
+    };
+  };
+}