docs: public static DBContext offlineInstance(String name) {
      DB db = DBMaker
          .fileDB(name)
          .fileMmapEnableIfSupported()
          .closeOnJvmShutdown()
          .cleanerHackEnable()
          .transactionEnable()
          .fileDeleteAfterClose()
          .make();
  
      return new MapDBContext(db);
    }