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System DesignScaling isn't about one magical technology. It's a continuous process of removing bottlenecks step by step — from query optimization to sharding. Here's what we
Recent Deep-Dives
Most engineers know consistent hashing exists. Few know exactly why it was invented, what problem it solves at 3am when a node dies.
9 min read · May 28, 2026Database InternalsLocks block. MVCC lets readers and writers coexist without stepping on each other.
11 min read · May 21, 2026BackendEvery API needs rate limiting. The algorithm you pick changes your memory usage, accuracy, and burst behaviour at scale.
8 min read · May 7, 2026Who Writes This
RMN
Software Engineer writing about the internals of systems most engineers use but never fully understand. One article a week, built from first principles.
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