The System Design Cheat Sheet You Wish You Had Earlier

If you're preparing for a big tech interview or just trying to level up your architecture skills, you've probably hit that wall where you don't know what to study next. System design is a vast topic, and the resources out there are scattered across blog posts, YouTube videos, and half-dead GitHub repos.

That's where this repository comes in. It's a single, well-curated collection of system design materials that cuts through the noise. I stumbled across it recently and honestly, I wish I had this when I was grinding for interviews last year.

What It Does

awesome-system-design-resources is a curated list of learning materials focused on system design fundamentals. It breaks everything down into three core pillars:

• Core Concepts — Covers distributed systems, scalability, caching, load balancing, and the other building blocks you need to know cold.
• Networking — Deep dives into TCP/IP, HTTP/HTTPS, DNS, WebSockets, and how data actually moves across systems.
• Database Fundamentals — Sharding, replication, indexing, consistency models, SQL vs NoSQL tradeoffs, and everything in between.

Each section contains links to tutorials, articles, and videos that are actually worth your time. No filler, no 400-page PDFs you'll never finish.

Why It's Cool

The best part about this repo is that it treats system design like a structured subject, not a vague collection of "things you should know." The author has done the hard work of filtering out the garbage, so you spend your time learning instead of searching.

A few things stand out:

• It's practical. The resources lean toward real-world examples and common interview questions, not just theory.
• It's continuously updated. The repository is actively maintained, so the content doesn't go stale.
• It's free. No paywalls, no "sign up to see the rest" nonsense. Just good links.

I also appreciate that it doesn't try to be a full course. It's a launchpad. You pick a topic, dive into the linked material, and come back for the next one. That's exactly how most developers actually learn.

How to Try It

You don't need to clone anything to get value out of it. Just head to the repository URL:

https://github.com/ashishps1/awesome-system-design-resources

Browse the directories, pick a topic you're weak on, and click through to the linked resources. If you find it useful, throw a star on the repo — it helps other devs discover it too.

Final Thoughts

System design is one of those skills that separates junior engineers from senior ones, and honestly, it's hard to study for because there's no single textbook. This repo solves that problem by giving you a clear path forward.

I'd recommend it to anyone preparing for interviews, jumping into backend work, or just curious about how large-scale systems actually operate. It's not going to teach you everything, but it will point you to the right places to learn.

Next time you have a free hour, pick one topic from the networking section and go down the rabbit hole. Your future self will thank you.

Found this useful? Follow @githubprojects for more curated dev resources.