docs: public void initSystem() {
          createIzouPropertiesFile();
          setSystemProperties();
          reloadFile(null);
  
          try {
              if (System.getProperty(IZOU_CONFIGURED).equals("false")) {
                  fatal("Izou not completely configured, please configure Izou and launch again.");
                  System.exit(0);
              }
          } catch (NullPointerException e) {
              fatal("Izou not completely configured, please configure Izou by editing izou.properties in the " +
                      "properties folder and launch again.");
              System.exit(0);
          }
      }