static double autoRestart_interval = 10;
static bool autoRestart_on, autoRestart_debug;

static void autoRestart() {
  if (autoRestart_on) ret;
  set autoRestart_on;
  autoRestart_schedule();
  preloadProgramTitle();
}

svoid autoRestart_schedule {
  doLater_daemon(toMS(autoRestart_interval), f autoRestart_check);
}

svoid autoRestart_check {
  try {
    S newMD5 = getServerTranspilationMD5(programID());
    if (!isMD5(newMD5)) { if (autoRestart_debug) print("autoRestart: no server transpilation"); ret; }
    S localMD5 = md5(loadCachedTranspilation(programID()));

    if (neq(localMD5, newMD5)) {
      if (!hasServerDex(programID())) {
        if (autoRestart_debug) print("autoRestart: Compilation failed");
        ret;
      }
      infoBox("Upgrading " + programTitle());
      restartWithDelay(1000);
      sleep();
    }
  } finally {
    if (autoRestart_debug) print("autoRestart: Done");
    autoRestart_schedule();
  }
}

Began life as a copy of #1010683