Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server: a mail server in a box.

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

📚 免费的计算机编程类中文书籍，欢迎投稿

Everything is awesome

A markdown version emoji cheat sheet

The open-source repo for docs.github.com