adapt config for use with standalone home-manager

modules/features/applications/gui/nautilus.nix

@@ -19,10 +19,10 @@
     };
   };
 
-  flake.homeModules.graphics = { pkgs, osConfig, lib, ... }: {
-    config = lib.mkIf (osConfig.features.applications.gui.nautilus.enable) {
+  flake.homeModules.graphics = { pkgs, osConfig, config, lib, ... }: {
+    config = lib.mkIf (builtins.hasAttr "osConfig" self) (lib.mkIf (osConfig.features.applications.gui.nautilus.enable) {
       gtk.gtk3.bookmarks = [
-        "file://${osConfig.info.rootPath} NixOS"
+        "file://${config.info.rootPath} NixOS"
         "file:///home/grey/Downloads Downloads"
         "file:///home/grey/Documents Documents"
         "file:///home/grey/Pictures Pictures"
@@ -30,6 +30,6 @@
         "file:///home/grey/Videos Videos"
         "file:/// Root"
       ];
-    };
+    });
   };
 }