code: public function getAdminHomeRouteForAdministrator(): string
      {
          if (array_key_exists($this->getAdministratorUsername(), $this->administratorHomeRoutes)) {
              return $this->administratorHomeRoutes[$this->getAdministratorUsername()];
          } elseif (null !== $roleRoute = $this->getAdminHomeRouteForAdministratorByRole()) {
              return $roleRoute;
          }
          
          // default
          return ROUTE_ADMIN_HOME_DEFAULT;
      }
docs: determine home route: either by username, by role, or default