Writing & Thoughts

A collection of thoughts on software engineering, design, building products and everything in between.

LangChain, Explained From Zero - LLMs, RAG, Retrievers, and Everything In Between

LangChain, Explained From Zero - LLMs, RAG, Retrievers, and Everything In Between

From 'Attention Is All You Need' to LLMs to the very real problem of burning through free-tier API credits - a ground-up explanation of what LangChain actually is, why it was built, and how retrievers, vector databases, splitters, and RAG fit together.

AITech
August 29, 2026
System Design Buzzwords, Explained From Zero

System Design Buzzwords, Explained From Zero

Everything you actually need to know about load balancers, horizontal vs vertical scaling, replication, sharding, caching, message queues, CDNs, monitoring, and all the other terms that sound intimidating but are just tools for solving specific, common problems.

System DesignTech
July 20, 2026
Handling Images in Development: From Upload to Optimized Delivery

Handling Images in Development: From Upload to Optimized Delivery

Everything I wish someone had told me before I spent a week rebuilding an image pipeline: storage with S3 or Cloudinary, what a CDN is actually doing under the hood, optimizing with Gumlet, srcset for responsive images, caching, and the mistakes that'll bite you in production.

EngineeringTech
June 6, 2026
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