anchor.diff:  
     preBuild = ''
       buildFlagsArray=(
  -      "SKIP_TARGETS=${toString skipTargets}"
  +      "NOBUILD_TARGETS=${toString skipTargets}"
         "GCC_REQUIRED_VERSION=$(arm-none-eabi-gcc -dumpversion)"
         all
       )
  
positive.code:     homepage = https://github.com/betaflight/betaflight;
      license = licenses.gpl3;
      maintainers = with maintainers; [ elitak ];
      platforms = platforms.linux;
    };
  
  }
  
negative.code:   ];
  
    postPatch = ''
      sed -ri "s/REVISION.*=.*git log.*/REVISION = ${builtins.substring 0 10 src.rev}/" Makefile # Simulate abbrev'd rev.
      sed -ri "s/binary hex/hex/" Makefile # No need for anything besides .hex
    '';
  
  