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Technical articles, tutorials, and thoughts on software engineering, distributed systems, and building scalable applications.

Article

Understanding Retrieval-Augmented Generation (RAG) by Building One from Scratch

Large Language Models only know what they were trained on. RAG fixes that by letting models fetch real knowledge before answering. Here’s how it works, and how to build one yourself. Why standard LLMs...

Mar 10, 2026
5 min read
Article

Data Structures and their Temperaments

Data Structures and Their Temperaments What if data structures were just emulating human personalities all along? The four basic data structures — arrays, hashmaps, tuples, and sets each define a way...

Jan 14, 2026
5 min read
Article

‎Why Developers Use n8n (And Why It’s Not “Just No-Code”)

Why Developers Use n8n (And Why It’s Not “Just No-Code”) Automation tools often get dismissed by engineers — for good reasons. n8n is different, and that difference explains why experienced developers...

Dec 30, 2025
5 min read
Article

How Modern Online Payments Work: The Complete Technical Breakdown Behind Every “Pay Now” Button

How Modern Online Payments Work Online payments feel instant you click Pay, see a confirmation, and move on. But behind that single action is a complex, highly-orchestrated ecosystem designed to verif...

Dec 28, 2025
5 min read
Article

Monte Carlo Simulation Through the Lens of Markov Chains

Uncertainty is the only constant. Monte Carlo gives randomness a purpose. Markov chains give it structure. Together, they form the backbone of modern simulation. At first glance, Monte Carlo simulatio...

Aug 22, 2025
5 min read
Article

Let It Marinate: The Underrated Power of Sitting with Information

Let It Marinate The underrated power of sitting with information and why doing nothing is sometimes the most productive thing you can do. In a world obsessed with speed, we tend to treat learning like...

Jul 27, 2025
5 min read
Article

Unlocking the Power of Bitwise Operations and Masking: Store More with Less

Unlocking the Power of Bitwise Operations and Masking Store more with less and write faster, leaner, more memory-efficient programs by learning how computers actually think. When I first encountered b...

Jul 27, 2025
5 min read
Article

Understanding Time and Space Complexity in Recursion — No Code

Understanding Time and Space Complexity in Recursion Recursion is one of the most beautiful concepts in computer science and one of the most misunderstood. The issue isn’t the logic. It’s the unseen c...

Jul 23, 2025
5 min read
Article

Understanding KMP, Rabin-Karp, Indexed Search, Linear Search, and Regex Search

Understanding KMP, Rabin-Karp, Indexed Search, Linear Search, and Regex Search In today’s data-driven world, the ability to efficiently search through files and text is critical. Whether you’re parsin...

May 20, 2025
5 min read
Article

Game Theory and Its Fascinating Applications in Computation

Game Theory and Its Fascinating Applications in Computation Have you ever wondered how computer systems make decisions when multiple agents—human or machine—are involved? Whether it’s self-driving car...

May 13, 2025
5 min read
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