code: public function newApp() : ApplicationInterface
      {
          $app = new CalgamoApplication($this->filesystem);
          $app->requireModule(CalgamoLogExceptionHandlerModule::class);
          $app->requireModule(CalgamoRouterModule::class);
          $app->requireModule(CalgamoDiModule::class);
          $app->requireModule(Wa72SimpleLoggerModule::class);
          return $app;
      }
docs: Get new app
  
  @return ApplicationInterface