try to fix cloud-hypervisor overlay

Author: xDarksome

flake.nix

@@ -129,8 +129,8 @@
       }) // {
         lib = import ./lib { inherit (nixpkgs) lib; };
 
-        overlay = final: prev: {
-          cloud-hypervisor-graphics = prev.callPackage (spectrum + "/pkgs/cloud-hypervisor") {};
+        overlay = final: super: {
+          cloud-hypervisor-graphics = import "${spectrum}/pkgs/cloud-hypervisor" { inherit final super; }; 
         };
         overlays.default = self.overlay;