add function to mirror system config in home config

modules/global/home.nix

@@ -12,7 +12,7 @@
       packages = with pkgs; [
         speedtest-go
       ] ++ config.features.applications.extraPackages
-      ++ (if !(builtins.hasAttr "osConfig" self) then [
+      ++ (if !(builtins.tryEval osConfig).success then [
         pkgs.home-manager
       ] else []);
 
@@ -24,7 +24,7 @@
 
     xdg = {
       enable = true;
-      localBinInPath = !(builtins.hasAttr "osConfig" self);
+      localBinInPath = !(builtins.tryEval osConfig).success;
     };
 
     programs = {