anchor.diff: -{ lib, stdenv, fetchFromGitHub, meson, ninja, gtk3, python3, faba-icon-theme, hicolor-icon-theme }:
  +{ lib, stdenv, fetchFromGitHub, meson, ninja, gtk3, python3, faba-icon-theme, hicolor-icon-theme, jdupes }:
   
   stdenv.mkDerivation rec {
     pname = "moka-icon-theme";
  
positive.code:     ninja
      gtk3
      python3
    ];
  
    propagatedBuildInputs = [
  
negative.code: 
    dontDropIconThemeCache = true;
  
    # These fixup steps are slow and unnecessary for this package
    dontPatchELF = true;
    dontRewriteSymlinks = true;
  
    postPatch = ''
      patchShebangs meson/post_install.py
    '';
  
    postInstall = ''
      # replace duplicate files with symlinks
      jdupes -l -r $out/share/icons
    '';
  
    meta = with lib; {
  