liquidslr/system-design-notes

What it does

This repo contains reading notes for Alex Xu's System Design Interview: An Insider's Guide Vol 1 and Vol 2, organized into per-chapter Markdown documents. It walks through scaling to millions of users, back-of-the-envelope estimation, and a full set of classic system design problems.

What's inside

The repo is organized as 28 numbered chapter folders, from 'Scale From Zero To Millions Of Users' to 'Stock Exchange', plus additional reading links on rate limiting, consistent hashing, and more.

Tech stack

Pure Markdown documents with no code dependencies; no primary language is declared, so no specific stack is required to read it.

Use cases

• Backend, full-stack, and architecture candidates preparing for system design interviews can study chapter by chapter
• Junior to mid-level engineers who want to systematically fill gaps in distributed system design knowledge
• Interviewers or tech leads looking for a reference framework for questions and discussions

Why it's trending

System design interviews are a high-frequency topic for backend and architecture roles, and these free notes cover all chapters of Vol 1+2, earning 24,808 stars with 393 added today to reach #9 on the daily trending list.

Current chart placements