Systems Design & Architecture

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...

Side projects are, for me, a space to try new things on one hand, and to solve a problem in my head...

Modern operating system filesystems (like ext4 or NTFS) are intimidating to look at. If you dive into...

Building a Public Status Page: What to Show and What to Hide A public status page is one...

A medida que una aplicación de Go crece en complejidad y adopta arquitecturas desacopladas (Clean...

Back when I was developing a manufacturing ERP, the need arose to offer the same software to multiple...

Designing a Responsive Browser-Based Ebook Converter Without Melting the Main Thread Have...

In standard CRUD apps, if a user updates their profile name, you overwrite the database row. No big...

We were burning 400ms in p99 tail latency on a core event-processing path in Veltrix. The upstream...

Learn how to wire PLC inputs and outputs. Covers sourcing vs sinking, digital and analog I/O, power supply wiring, and best practices for industrial P...

Your payment service just charged a customer. It writes to the DB. Now it needs to tell the...

Cell-Based Architecture for GDPR, Hybrid Logical Clocks (the poor man's TrueTime), fencing zombie leaders during split-brain, Chaos Engineering in production, a

You are mid-way through a system design interview, confidently whiteboarding your database...

Responsive UIs for High-Throughput Ebook Converters: Debouncing, Chunking & Web...

Why CRDTs can't handle financial ledgers, how Event Sourcing made auditors thank us for the first time in 10 years, and a Distributed Saga that survived a trans

Tree traversal usually gets taught as three separate algorithms to memorize: preorder, inorder,...

— written by a human! Recently at work, I worked on a major project - Multitenancy. Initially, we...

As a developer, you might wonder: "Why can't I just use a highly optimized PostgreSQL or MongoDB...

This is Part 2 of the Architecture of Chaos series. Start from Part 1 here. ⚠️ Names, companies,...