A new version V0.2.3 was released several days ago. Performance optimized, CDN support enhanced. Also automatic blacklist is introduced into the server side.
If there is an error saying cannot get time from s2a.time.edu.cn at client side, please go to arkcclient/pyotp/totp.py and change the string to cn.pool.ntp.org.
We are redesigning our connection selecting algorithm. In the next version there may be limited backward compatibility.