# liquidslr/system-design-notes

> Notes from Alex Xu's System Design Interview books (Vol 1 and 2), covering 28 classic system design problems — from rate limiters and key-value stores to YouTube, Google Drive, and a stock exchange. For interview preparation and studying distributed system architecture.

- Magnitude: 4.2 out of 10 — Breakout
- Stars: 24,181 total · +25 stars measured 2026-10-08, 10:59–11:47 UTC, ≈ 161 by evening
- Star trust: star growth looks organic
- Category: Learning & lists · Created: 2024-12-24 · Last push: 2026-08-12
- GitHub: https://github.com/liquidslr/system-design-notes · Homepage: https://pagefy-blush.vercel.app/system-design/system-design-interview-by-alex-xu · Page: https://gitnova.dev/en/r/liquidslr/system-design-notes

## Useful for

- Prepare for a system design interview by reviewing common design problems
- Study distributed system design approaches through concrete case studies
- Use the notes as an architecture cheat sheet when designing a service

## Why it’s here

- Star-counter measurements on 2026-10-08 (UTC), 10:59–11:47: 24156 → 24181 stars (+25). This is the change over that interval.
- Estimated end-of-day forecast: about +161 stars, using observed gains and the previous day.
- Over the last two days the pace is 2× that of the previous week and a half.
- GitHub Trending today: #9, +398 stars.
- About 35 forks a day — people are taking the code.

## Star trust

Star growth looks organic.

Star-trust labels are heuristics based on the repository’s behavior, not a check of every stargazer.

## Numbers

- Forks: 4,575
- Issues and pull requests: 20
- Watchers: 179
- Average over the last week: 224 per day
- Usual pace: 215 per day
- Stars in the last hour (measured): 32

## Stars per day, last 30 days (oldest → newest, today is partial)

2026-09-09 … 2026-10-08: 1110, 778, 327, 165, 189, 105, 176, 109, 57, 44, 165, 251, 242, 199, 338, 138, 65, 69, 299, 271, 188, 225, 170, 148, 119, 102, 182, 361, 493, 25

## Spotted in now

- GitHub Trending today: #9, +398 stars

## Similar by description

1. **lukeTheNeuromancer/system-design-notes-zh** — 0.0 · Steady · Learning & lists · Not enough measurements today
   Chinese translation of notes based on Alex Xu's "System Design Interview" books (Volumes 1 and 2), covering 28 chapters from scaling to designing a stock exchange. Material for preparing for system design interviews.
   Full card: https://gitnova.dev/en/r/lukeTheNeuromancer/system-design-notes-zh.md

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Magnitude (0–10) measures how fast and how unusually interest in a repository is growing right now. It is not a quality score.
Days are UTC. “So far today” is a fact; “expected by the end of the day” is a forecast.
Summaries and use cases are written by an LLM (DeepSeek V4.1 Flash) from the README and may be inaccurate: verify specific claims (benchmarks, speed, hardware) in the repository itself.
Data as of 2026-10-08 12:00 UTC, updated every 30 minutes.