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Tools Don’t Fix Broken Systems — Design Does
Developers understand this instinctively: you can’t fix a bad architecture by adding more libraries. Yet businesses do this all the time. When operations feel s...
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Why We Use Separate Tech Stacks for Personalization and Experimentation
The technical and practical rationale for a clear separation between these domains. The post Why We Use Separate Tech Stacks for Personalization and Experimenta...
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On the slow death of scaling
pdf: https://download.ssrn.com/2026/1/6/5877662.pdf?response-cont... Comments URL: https://news.ycombinator.com/item?id=46522308 Points: 20 Comments: 2...
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System Design : Calendar App
Functional Requirements - Create event, modify event, cancel event - View calendar daily, weekly, or yearly - Set up recurring meetings - Send notification for...
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Neurodivergent Brains Build Better Systems (2025)
A Purist’s Perspective on Neurodivergence in Engineering A former manager once described me as a “purist”. It wasn’t the first time a colleague alluded to my o...
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Boyer–Moore Majority Voting: Why It Works, Why It Fails, and Where It Actually Belongs
Read more about Boyer–Moore Majority Voting: Why It Works, Why It ...
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EP 7: The 'Join' Tax vs. The 'Storage' Tax
SQL vs NoSQL Trade‑offs When we talk about SQL vs. NoSQL in system design, we move past syntax to the core trade‑offs. In a real‑world system you choose a data...
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System Design Quick Guide
System Design is the language of scale, and every engineer needs to speak it. I’ve created this 1‑page Quick Guide to help you decode complex system design topi...
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Conversion Is a Property of System Design, Not Marketing
System Perspective on Conversion When conversion drops, marketing is usually blamed first. As an engineer, I learned that this framing is often wrong. Conversi...
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EP 6.3: Master-Slave Architecture
Overview In system design, the Master‑Slave or Leader‑Follower architecture is a fundamental pattern used to achieve scalability and high availability, especia...
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Consistent Hashing - System Design
📌 1 💥 The Core Problem: Traditional Hashing Breaks in Distributed Systems ❓ The Scenario In a distributed system many servers handling data we must decide wh...
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Why Windows Still Resists POSIX at the Core (And Probably Always Will)
Windows Didn’t Evolve From Unix Unix‑like systems grew out of shared machines, while Windows grew out of personal computers. By the time POSIX became a standar...