If you want to make a contact with me, here are all the possibilities (althought some of them may be easier than others):

1. Youtube: https://bit.ly/3sLepm5
2. Twitter: https://bit.ly/3wbKsh5
3. Facebook: https://bit.ly/3suslR4
4. Github: https://bit.ly/3u5dddq
5. Bilibili: https://bit.ly/3m12QV7
6. Zhihu (知乎): https://bit.ly/31tvZyP