Systems Design & Architecture

How we ship Card, Button, Avatar, and dozens of others across React + React Native without losing our minds.

We talk about pagination as if it's purely a backend concern – the database does the heavy lifting,...

GitGuardian helps developers and security teams detect secrets (API keys, tokens, credentials) that...

When I first started building distributed systems, I expected everything to be instantly up-to-date....

The Problem We Were Actually Solving I was the lead systems engineer on a project to build...

Why I built this Every time I start a new project, I love to go with nextjs + mui...

Hey dev.to community! 💻 I’m Mountek, the System Designer at VecTrade.io. We recently launched...

When product managers talk about gamification—features like daily missions, experience points (XP),...

Recap In the previous chapters, we explored: Scheduler internals Memory and graph...

Service Discovery in Distributed Systems Service Discovery in Distributed...

What most system design articles skip is the part where you explain why the boring choice...

Your order processing service runs on SQS. Normal load: 200 orders/min. Consumers keep up...

The Single Database Problem In 2004, Facebook launched. One server. One database. By 2008, they had...

Designing a Real-Time Collaborative Document Editor: Architecture, Tradeoffs, and Practical...

Originally published at docs.cmdop.com/blog/execution-state-continuity-06-the-boundary — part of the...

Originally published at docs.cmdop.com/blog/execution-state-continuity-05-session-primitive — part...

The PR That Started A Twenty-Comment War The code was fine. Logic was correct. TypeScript...

The Question Nobody Should Be Asking "Should I use SQL or NoSQL?" It's the most Googled database...

The Theorem That Changed How We Think About Databases In 2000, Eric Brewer stood at a conference and...

How to Structure Reusable Components in a Next.js Project One habit separates Next.js codebases that...

A practical look at Tony Hoare’s CSP, why shared-memory concurrency becomes painful, and how Go turned an old computer science idea into goroutines and channels

The Great Showdown: Scalability vs. Performance - Which One Reigns Supreme? Ever felt like...

When starting a new project or scaling an existing system, the question "how should we design the...

Sunday Notes: The Workflows Your Team Runs But Never Writes Down Every team I've talked to...

Most linked lists eventually end. You keep following nodes and finally reach: null But what if...

TypeScript Deep Dive: Advanced Types and Patterns (2026) You know the basics of...

The Problem We Were Actually Solving As a systems engineer at Veltrix, I was tasked with...

If you've been learning software development, you've probably heard the terms Monolithic Architecture...

How to source PCB assembly from China — choosing factories, reading Gerbers, understanding IPC standards, and running quality inspection.

This software works in parallel with the CPU and GPU, using FPS as the primary focus and temperature...

Creating a Profitable YouTube Course: System Design for Developers Creating a Profitable YouTube...

BFS and DFS show up in every technical interview. Most developers know the names but get confused...

Your API returns 10 million orders. The frontend asks for "page 5." Offset 40, limit 10. Simple...

The "grokking" name is everywhere, but it traces back to a single course. I wasted two weeks on a stale copy before I figured that out.

While covering the Outbox Pattern, I realized there's another side of event reliability to discuss —...

Distributed locks are one of the most popular tools in the toolbox of teams transitioning to...

A few years ago, I was staring at a red, blinking monitoring dashboard. The system I was looking at...

If you have watched ByteByteGo-style system design videos, you know the format: clean architecture...

In 2025 we inherited the public facing search index for Hytales treasure hunt system. The index...

The Problem We Were Actually Solving We werent just chasing p99 latency; we were solving a...

The Problem We Were Actually Solving I still remember the day our treasure hunt engine...

Why Study Real-World Architectures? Most system design discussions focus on theoretical...

Welcome back, Gophers ❤. If you’ve followed along from our previous dives, you know that building a...

Welcome back, Gophers ❤ In the first part of this series, we mastered the art of creation learning...

You’re typing in a document. Someone else deletes the sentence you’re writing. Another person edits...

Your feed service was reading at 20ms. Then a celebrity with 2M followers posted. Now you're at 4...

I've just published SRP's Vocabulary Problem: Why Every Reformulation Failed. The Single...

Introduction In modern systems, messaging queues are one of the most essential building...