text: DEBUG = True
  SQLALCHEMY_TRACK_MODIFICATIONS = False
  BCRYPT_LOG_ROUNDS = 15
  SGF_FOLDER = '/home/guyu/kifutalk/app/static/assets/sgf'
  THUMBNAIL_FOLDER = '/home/guyu/kifutalk/app/static/assets/thumbnail'
  EMPTY_BOARD_DATAURL = '/home/guyu/kifutalk/app/static/assets/empty_board.dataurl'
  KIFU_PERPAGE = 5
  COMMENT_PERPAGE = 6
  THUMBNAIL_SIZE = (512, 512)
  URL_TIMEOUT = 10 # seconds
  