{
  pkgs,
  lib,
  stdenv,
  fetchFromGitHub,
  debug ? false,
  pname ? "softether",
  logDir ? "/var/log/${pname}",
  pidDir ? "/run/${pname}",
  dbDir ? "/var/lib/${pname}",
  dataDir ? "/var/lib/${pname}",
  version ? "master",
}:

stdenv.mkDerivation (finalAttrs: {
  inherit pname version;

  src = fetchFromGitHub {
    owner = "SoftEtherVPN";
    repo = "SoftEtherVPN";
    tag = "${finalAttrs.version}";
    hash = "sha256-KGcQNsHwEtJ0CR35XcW89UPqnnLlGus/zAGBZDgz5uo=";
    fetchSubmodules = true;
  };

  patches = [ ./patches/ipb-profile-key.patch ./patches/tap-name-no-prefix.patch ./patches/prevent-dmesg-call.patch ./patches/simplify_l2tp_auth.patch ./patches/exit-client-on-disconnect.patch ];

  nativeBuildInputs = with pkgs; [
    cmake
    pkg-config
    libsodium
    # Add other build tools here
  ];

  buildInputs = with pkgs; [
    openssl
    readline
    ncurses
    zlib
    bash
  ];

  cmakeFlags = [
    "-DSE_PIDDIR=${pidDir}" "-DSE_LOGDIR=${logDir}" "-DSE_DBDIR=${dbDir}" "-DCMAKE_INSTALL_SYSTEMD_UNITDIR="
    (lib.optionalString debug "-DCMAKE_BUILD_TYPE=Debug")
    "-DCMAKE_INSTALL_PREFIX=${placeholder "out"}"
    "-DCMAKE_INSTALL_LIBDIR=lib"
    "-DCMAKE_INSTALL_INCLUDEDIR=include"
    "-DCMAKE_INSTALL_LIBEXECDIR=libexec"
  ];

  meta = {
    description = "Softether 5";
    homepage = "https://www.softether.org/";
    platforms = [
      "x86_64-linux"
      "aarch64-linux"
    ];
  };
})