anchor.diff:      };
       hie-nix = (import nixpkgs {}).fetchFromGitHub {
         owner = "domenkozar"; repo = "hie-nix";
  -      rev = "2b7965f26009b43ecd65c2dcb4d15a53941b726e";
  -      sha256 = "1b2mv9pvbzk0fy1zjchfmkayya9dg1kq4xk0dqm9bzphz2f4icsv";
  +      rev = "b8d3fec2d73e43bae11116d0a138168676ae2365";
  +      sha256 = "1g00a85krcyalyr2p189dk0rs62gsnkj5cjs0pam060nmznqb9j4";
       };
  -    hie-nixpkgs = import "${hie-nix}/fetch-nixpkgs.nix";
  +    hie-nix-nixpkgs = import "${hie-nix}/fetch-nixpkgs.nix";
     };
   
     ulib = { lib, ... }: {
  
positive.code:       });
  
        # To make certain IFD deps survive GC.
        haskell-prevent-ifd-gc = [] ++
          buildPackages.haskellPackages.cabal2nix.all;
      };
    };
  
  
negative.code: 
    watchexec = (import sources.nixpkgsWatchexec {}).watchexec;
  
    hie = (import sources.hie-nix { pkgs = import sources.hie-nix-nixpkgs {}; }).hie82;
  
  in with (import sources.nixpkgs {}); with (ulib pkgs); let
  
  