anchor.diff:  { lib
   , dbus
   , fetchFromGitHub
  -, libssh
   , openssl
   , pkg-config
   , rustPlatform
  
positive.code:     Foundation
      Security
    ];
  
    NIX_CFLAGS_COMPILE = lib.optionals stdenv.isDarwin [
      "-framework" "AppKit"
  
negative.code: 
  rustPlatform.buildRustPackage rec {
    pname = "termscp";
    version = "0.10.0";
  
    src = fetchFromGitHub {
      owner = "veeso";
      repo = pname;
      rev = "v${version}";
      hash = "sha256-AyDENQj73HzNh1moO/KJl7OG80w65XiYmIl8d9/iAtE=";
    };
  
    cargoHash = "sha256-NgBQvWtwkAvp0V7zWGw+lNAcVqqDMAeNC0KNIBrwjEE=";
  
    nativeBuildInputs = [
      pkg-config
  