anchor.diff:      homepage = https://josm.openstreetmap.de/;
       license = licenses.gpl2Plus;
       maintainers = [ maintainers.rycee ];
  +    platforms = platforms.all;
     };
   }
  
positive.code: 
    buildInputs = [ jre8 ];
  
    installPhase = ''
      mkdir -p $out/bin $out/share/java
      cp -v $src $out/share/java/josm.jar
  
negative.code: { fetchurl, stdenv, makeDesktopItem, unzip, bash, jre8 }:
  
  stdenv.mkDerivation rec {
    name = "josm-${version}";
  