anchor.diff:    };
   
     nativeBuildInputs =
  -    [ mkfontdir mkfontscale bdf2psf bdftopcf fonttosfnt ];
  +    [ mkfontdir mkfontscale bdf2psf bdftopcf
  +      fonttosfnt libfaketime
  +    ];
   
     buildPhase = ''
       # convert bdf fonts to psf
  
positive.code: 
    outputHashAlgo = "sha256";
    outputHashMode = "recursive";
    outputHash     = "0j9fhvzkascpb5y8lc1pmmmgd74apgw9mimbj0bk2chcbfsi852p";
  
    meta = with stdenv.lib; {
      description = ''
  
negative.code: { stdenv, fetchurl, fetchFromGitHub
  , mkfontdir, mkfontscale, bdf2psf, bdftopcf
  , fonttosfnt, libfaketime
  }:
  
  stdenv.mkDerivation rec {
  