anchor.diff:          in lib.mapAttrs (_: args: if args == null then null else nixpkgsFunc args) rec {
           simulator64 = {
             system = "x86_64-darwin";
  -          overlays = nixpkgsArgs.overlays ++ [ mobileGhcOverlay forceStaticLibs ];
  +          inherit (nixpkgsArgs) overlays;
             crossSystem = {
               useIosPrebuilt = true;
               # You can change config/arch/isiPhoneSimulator depending on your target:
  
positive.code:         };
          aarch32 = {
            system = "x86_64-linux";
            overlays = nixpkgsArgs.overlays ++ [ mobileGhcOverlay ];
            crossSystem = {
              config = "arm-unknown-linux-androideabi";
              arch = "armv7";
  
negative.code:         };
          aarch64 = {
            system = "x86_64-darwin";
            inherit (nixpkgsArgs) overlays;
            crossSystem = {
              useIosPrebuilt = true;
              # You can change config/arch/isiPhoneSimulator depending on your target:
  