Hands-on companion to System Design Interview Vol. 1 by Alex Xu. Each chapter gets a small, runnable demo instead of just notes — built to internalize the concept, not just read about it.
| Ch. | Topic | Demo |
|---|---|---|
| 1 | Scale From Zero To Millions Of Users | ch01-load-balancer-demo |
| 2 | Back of the Envelope Estimation | ch02-boe-calculator |