CS Notes

Recent writing

Unleash the Python Kraken Pyenv and Poetry - The Holy Grail of Python Project Setups
Jan 05, 2026
- python
Eduroam
Dec 29, 2025
- networking
System Call (系统调用)
Dec 03, 2025
- OS

I share real-world lessons from building scalable systems at Jump Trading, Binance, and running mission-critical cloud ops at GovTech and Singapore Air Force. No fluff, just practical takeaways, hard-earned fixes, and deep dives that matter.