anchor.diff:  
     buildInputs = [
       ffmpeg_4
  +    flac
       freetype
       libGL
       libGLU
       libxml2
  +    mbedtls
       python3
       SDL2
  +    zlib
     ] ++
     lib.optional enableNvidiaCgToolkit nvidia_cg_toolkit ++
     lib.optional withVulkan vulkan-loader ++
  
positive.code: , dbus
  , fetchFromGitHub
  , ffmpeg_4
  , Foundation
  , freetype
  , gamemode
  
negative.code: , udev
  , vulkan-loader
  , wayland
  , zlib
  }:
  
  let
  