Swift derivation

derivation.nix

with import <nixpkgs> { };

stdenv.mkDerivation rec {
  name = "watchid-pam-extension-${version}";
  src = fetchFromGitHub {
    owner = "jnooree";
    repo = "pam-watchid";
    rev = "main";
    sha256 = "Ni8yyn0dKO8N7SSOeYJMl2XI83chKbDbdpOMegx9k9k=";
  };
  version = "2";
  libraryName = "pam_watchid.so";
  destination = "/usr/local/lib/pam";
  target = "arm64-apple-darwin22.5.0";
  buildInputs = [
    pkgs.darwin.apple_sdk.frameworks.LocalAuthentication
  ];

  buildPhase = ''
    ${pkgs.swift}/bin/swiftc ${src}/watchid-pam-extension.swift -target ${target} -O -Ounchecked -gnone -o $out/${libraryName} -emit-library
  '';
}