Corrected rustnet.nix call, moved it to userapps/utils.nix

hosts/puter/default.nix

@@ -2,7 +2,8 @@
   config,
   pkgs,
   ...
-}: {
+}:
+{  
   imports = [
     ./hardware-configuration.nix
     ./syncthing.nix
@@ -25,8 +26,6 @@
     ../../modules/common/libvirt.nix
     ../../modules/common/keyd.nix
     ../../modules/common/unbound-cloud.nix
-    
-    (callPackage .../../modules/common/rustnet.nix {})
   ];
   networking.hostName = "puter";
   # This will be overridden by system/default.nix

hosts/puter/packages.nix

@@ -2,7 +2,8 @@
   config,
   pkgs,
   ...
-}: {
+}:
+{
   nixpkgs.config.permittedInsecurePackages = [
     "qtwebengine-5.15.19"
     "electron-36.9.5"