> For the complete documentation index, see [llms.txt](https://liuyang89116.gitbook.io/system-design/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://liuyang89116.gitbook.io/system-design/readme.md).

# Introduction

## **I'm happy because I can learn new things every day!**

## 小可爱