static void autoRestartModule(fS moduleVar, fS programID, final bool callMain) {
  doLater_daemon(5000, new Runnable {
    Var<S> name = evaluateInBackground(func -> S { snippetWithTitle(programID) });
    S localMD5 = serverAutoRestartMD5(programID);
    
    public void run() {
      S newMD5 = serverAutoRestartMD5(programID);
      if (isMD5(newMD5) && neq(localMD5, newMD5)) {
        S name = name.has() ? name! : fsI(programID);
        upgradeModuleVar(moduleVar, name, programID, callMain);
      }
    }
  });
}