anchor.diff: -{ stdenv, buildGoPackage, fetchgit, pkgconfig, cmake, libcxx, libcxxabi
  -, ffmpeg-full, graphicsmagick, ghostscript, quicktemplate, go-bindata, easyjson
  -, nodePackages, emscripten }:
  +{ stdenv, buildGoPackage, fetchgit, pkgconfig, cmake, ffmpeg-full, ghostscript
  +, graphicsmagick, quicktemplate, go-bindata, easyjson, nodePackages, emscripten }:
   
   buildGoPackage rec {
     name = "meguca-unstable-${version}";
  
positive.code:     sed -i "/npm install --progress false --depth 0/d" Makefile
      make generate_clean
      go generate meguca/...
      go build -p $NIX_BUILD_CORES meguca
      make -j $NIX_BUILD_CORES client wasm
    '';
  
    installPhase = ''
  
negative.code:   buildInputs = [
      ffmpeg-full graphicsmagick ghostscript quicktemplate go-bindata easyjson
      emscripten
    ];
  
    buildPhase = ''
      export HOME=$PWD
  