anchor.diff:  { fetchFromGitHub
   , json_c
   , lib
  -, libuuid
   , meson
   , ninja
   , openssl
  
positive.code:     owner = "linux-nvme";
      repo = "libnvme";
      rev = "v${version}";
      sha256 = "EPAPWY6/Bh8I1eLslKJAofLn0IAizmGn00Q5PJPtdRw=";
    };
  
    postPatch = ''
  
negative.code: 
    buildInputs = [
      json_c
      openssl
      python3
      systemd
  