docs: public static ServiceController<InstallationManager> installService(ServiceTarget serviceTarget) {
          final InstallationManagerService service = new InstallationManagerService();
          return serviceTarget.addService(InstallationManagerService.NAME, service)
                  .addDependency(JBOSS_PRODUCT_CONFIG_SERVICE, ProductConfig.class, service.productConfig)
                  .setInitialMode(ServiceController.Mode.ACTIVE)
                  .install();
      }