fundamentals
Software Engineering·Jul 21, 2026·9 min read
Database Fundamentals
A database stores and organises your app's data. This guide explains SQL vs NoSQL, when to use each, core concepts like indexes and transactions, and how to get started.
Software Engineering·Jul 21, 2026·10 min read
System Design Basics
System design is how the individual parts of your app — database, cache, queue, and APIs — fit together into something that's fast, reliable, and able to grow. This guide covers the core building blocks and the decisions that shape every system.
Software Engineering·Jul 21, 2026·8 min read
Understanding APIs
An API lets two pieces of software talk to each other. This guide explains REST APIs, webhooks, authentication, and status codes in plain English — with real examples.