#system-design

Caching is a key system-design technique for improving performance and reducing database load by storing frequently accessed data in faster storage. These notes cover where caching fits in a system, common architectures such as cache-aside, write-through, write-behind, and read-through, eviction pol

Message queues are a fundamental building block in distributed systems and a common topic in system design interviews. They enable asynchronous communication between producers and consumers, helping applications reduce latency, handle traffic spikes, improve reliability, and scale services independe