anchor.diff:  , lib
   , makeWrapper
   
  +, adwaita-icon-theme
   , alsa-lib
   , atk
   , cairo
  
positive.code:   sources = {
      "stable" = {
        suffix = "";
        version = "1.27.1";
        sha256 = "fd898b3e24805686fac283a5de189f79395e026a0262961b93e2739034da5423";
      };
      "beta" = {
        suffix = "-beta";
        version = "1.28.0-beta1";
        sha256 = "16cca8ee9709334b038b1804041f0381f1fcea0d5be815ba4c927a7d94c07dd6";
      };
    };
    source = sources."${channel}";
  
negative.code:       --prefix 'PATH' : "${gvfs}/bin:${python}/bin" \
        --prefix 'LIBRARY_PATH' : "${libPath}" \
        --prefix 'LD_LIBRARY_PATH' : "${libPath}" \
        --prefix 'XDG_DATA_DIRS' : "$GSETTINGS_SCHEMAS_PATH" \
        --prefix 'XDG_DATA_DIRS' : "${shared-mime-info}/share" \
        --prefix 'XDG_DATA_DIRS' : "$out/share" \
        --prefix 'XDG_DATA_DIRS' : "$XDG_ICON_DIRS"
  
      wrapProgram $out/bin/apm${source.suffix} \
        --prefix 'CPATH' : "${makeSearchPath "include" buildInputs}" \
  