看在网上搜索 tg 自建全是自建 DL 的份上：
https://telegram.org/faq#q-can-i-run-telegram-using-my-own-serverQ: Can I run Telegram using my own server?
Our architecture does not support federation yet. Telegram is a unified cloud service, so creating forks where two users might end up on two different Telegram clouds is unacceptable. To enable you to run your own Telegram server while retaining both speed and security is a task in itself. At the moment, we are undecided on whether or not Telegram should go in this direction.