feat: Ensure ability to change kisokUrl from inventory.nix

hosts/default.nix

@@ -116,17 +116,23 @@ let
           overrideModule =
             { ... }:
             let
-              # Remove special keys that are not filesystem options
+              # Remove special keys for filesystem overrides, keep other config attrs
               fsConf = builtins.removeAttrs devConf [
                 "extraUsers"
                 "flakeUrl"
                 "hostname"
+                "modules"
+              ];
+              extraConfig = lib.removeAttrs devConf [
+                "extraUsers"
+                "flakeUrl"
+                "hostname"
               ];
             in
-            lib.mkIf hasOverride {
+            lib.mkIf hasOverride (lib.recursiveUpdate {
               host.filesystem = fsConf;
               modules.users.enabledUsers = devConf.extraUsers or [ ];
-            };
+            } extraConfig);
 
           config = mkHost {
             hostName = hostName;

inventory.nix

@@ -44,7 +44,12 @@
 
   # Surface Tablet Configuration (Kiosk Mode)
   # Base specs: eMMC drive, 8G Swap
-  nix-surface.count = 3;
+  nix-surface = {
+    count = 3;
+    devices = {
+      "1".modules.sw.kioskUrl = "https://google.com";
+    };
+  };
 
   # LXC Container Configuration
   nix-lxc = {