anchor.diff:        android = lib.mapAttrs (_: args: if args == null then null else nixpkgsFunc args) rec {
           aarch64 = {
             system = "x86_64-linux";
  -          overlays = globalOverlays ++ [ mobileGhcOverlay ];
  +          overlays = nixpkgsArgs.overlays ++ [ mobileGhcOverlay ];
             crossSystem = {
               config = "aarch64-unknown-linux-android";
               arch = "arm64";
  
positive.code:       };
      };
  
      nixpkgs = nixpkgsFunc ({
        inherit system;
        overlays = globalOverlays ++ [ mobileGhcOverlay ];
        config = {
  
negative.code:           ${if system == "i686-linux" then "cabal2nix" else null} = pkgs.haskell.lib.dontCheck pkgs.cabal2nix;
          };
        } // config;
      };
  
      nixpkgs = nixpkgsFunc nixpkgsArgs;
  
      inherit (nixpkgs) lib fetchurl fetchgit fetchgitPrivate fetchFromGitHub;
  
  