static volatile int stefansChat_n_value;
static Lock stefansChat_n_lock = lock();
static L stefansChat_n_onChange = synchroList(); // runnables

static int stefansChat_n() {
  ret stefansChat_n_notify(toInt(loadPage("http://botcompany.de/1008998/raw/n")));
}

static int stefansChat_n_notify(int n) {
  bool changed = false;
  if (n > stefansChat_n_value) {
    lock stefansChat_n_lock;
    if (n > stefansChat_n_value) {
      stefansChat_n_value = n;
      changed = true;
    }
  }
  if (changed)
    pcallF_all(stefansChat_n_onChange);
  ret n;
}

svoid stefansChat_n_onChange(O r) {
  if (stefansChat_n_value == 0) stefansChat_n();
  setAdd(stefansChat_n_onChange, r);
}

Began life as a copy of #1010756