If developing a system, it’s crucial to grasp the contrast between a Conceptual Blueprint (HLD) and a Low-Level Design (LLD). The HLD provides a wider look, outlining the primary modules and their relationships . It’s focused on the “what” and “why” – what the system needs to achieve and why it'… 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