If building a application , it’s vital to understand the contrast between a Conceptual Architecture (HLD) and a Technical Specification (LLD). The HLD provides a wider perspective , outlining the major building blocks and their interactions . It’s focused on the “what” and “why” – what the solut

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