If building systems , there's necessary to appreciate the contrasting roles of high-level design and low-level design . Top-level design provides a broader perspective of the project, illustrating the core modules and their connections excluding specific realization specifics. In contrast , LLD

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