As it relates to system design , there's critical to understand the separation between a High-Level Blueprint (HLD) and the Low-Level Design (LLD). The HLD provides a bird's-eye view of the application , outlining principal components and their interactions . Conversely , the LLD dives further i… Read More

Caching Strategies Start With One Question: How Stale Can This Data Be? Most caching answers jump straight to Redis. The stronger answer starts one step earlier. Caching is a deliberate trade of freshness for speed, so the first thing to establish is how much staleness t… Read More