1d ago · 2 min read · A few months ago I was working on a system architecture for a project and needed to diagram it out. I opened the usual suspects, draw.io, Excalidraw, Lucidchart. All either too generic, paywalled for
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6d ago · 5 min read · TL;DR: Geohashing encodes 2D coordinates into hierarchical string prefixes, transforming expensive O(n) geometric calculations into efficient indexed lookups. By mapping geographic areas to unique str
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Mar 27 · 2 min read · You Are a Packet Every morning, approximately four million packets enter the New York City transit system. They have origins. They have destinations. They have assumed latency budgets that the system does not honor. You are one of those packets. You ...
Join discussionMar 25 · 2 min read · As we move into 2026, the demand for scalable, distributed systems has made architectural modularity more critical than ever before. Mastering the transition from monolithic structures to decoupled services is the defining skill set for modern backen...
Join discussionMar 18 · 4 min read · TL;DR: HyperLogLog (HLL) is a probabilistic data structure that estimates unique counts by analyzing the bit patterns of hashed IDs. Instead of storing every user ID, it tracks the maximum number of l
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Mar 13 · 14 min read · Chess — a game with ancient strategic roots — and system design interviews share the same core failure mode: both punish players who calculate before they think. The moment I started treating system design like a chess game, clarifying position befor...
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