anchor.diff:  
     buildInputs = [
       ffmpeg
  +    lib-bash
     ];
   
     meta = with stdenv.lib; {
  
positive.code: 
    src = fetchgit {
      url = "https://github.com/chlorm/arkive.git";
      rev = "b9f98b00897531f2f183004b71f11507d9da3d34";
      sha256 = "06h07rcbmsz7zdq8f22v49ibs5yn4666wqrxb1p456n15vjgqmh0";
    };
  
    nativeBuildInputs = [
  
negative.code: , fetchgit
  
  , ffmpeg
  , lib-bash
  }:
  
  stdenv.mkDerivation rec {
  