vps: fix infinite recursion error

pkgs/default.nix

@@ -6,6 +6,9 @@
 with prev.lib; let
   inherit (final) callPackage fetchpatch;
 in {
+
+  homepage = flakes.homepage.packages.${final.system}.default;
+
   override =
     {
       # add python modules here to make them available in all versions

sys/platforms/vps/default.nix

@@ -4,6 +4,7 @@
   pkgs,
   flakes,
   modulesPath,
+  doctrine,
   ...
 }:
 with lib; {
@@ -40,7 +41,14 @@ with lib; {
     useGlobalPkgs = true;
     useUserPackages = true;
 
-    extraSpecialArgs = {inherit flakes;};
+    extraSpecialArgs = {
+      inherit flakes;
+      doctrine = flakes.trivionomicon.lib.mkDoctrine {
+        inherit pkgs;
+        inherit (doctrine) prefix;
+        namespace = "home";
+      };
+    };
 
     users.fabian = {
       imports = [