Topic

Building things

Code, the web, and how software gets made.

❡ Book

Tsinghua's classic data structures textbook by Deng Junhui (邓俊辉), the companion to his MOOC on XuetangX.

25 Sept 2026 · Building things

⚙ Tool

A tiny interactive tool that asks the nearest Cloudflare data centre who you are.

22 Sept 2026 · Edge & infra

✎ Article

One collection, three lenses — format, topic and tags — and never more than two levels deep.

21 Sept 2026 · Front-end