#scalability

Introduction to System Design

System design is about making decisions that let software work reliably at scale. When your app has 100 users, almost any architecture works. When it has 10 million, the decisions you made early either save you or haunt you. This tutorial introduces the core concepts, vocabulary, and thinking patterns you need before diving into specific components like load balancers, caches, and message queues. What System Design Actually Means System design is answering questions like: Read more →

May 18, 2026