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Ratn Labs

Systems thinking, backend architecture, and AI engineering. Writing about Go, Elixir, distributed systems, AWS, and the craft of building reliable software.

Visit blog.ratnesh-maurya.com
System DesignGolangAWSComputer ScienceWeb DevelopmentSoftware Architecture
2026System Design

How Files Are Stored, Deleted, and Copied Inside Your Computer

Understand how files are actually stored on disk, why deletion is instant, and why copying takes time. A beginner-friendly deep dive into file systems and storage architecture.

2026Computer Science

The Mechanics of Compression: How 100GB Becomes 25GB

A deep dive into the mathematical 'magic' behind data compression, from Huffman Coding to the architectural differences between ZIP and TAR.GZ.

2025Web Development

Building This Blog: A Modern Next.js Blog with Markdown

How I built this blog using Next.js, TypeScript, Tailwind CSS, and markdown for content management. A complete guide to creating a fast, SEO-optimized blog.

2025Golang

Optimizing Memory Layout in Go: A Deep Dive into Struct Design

In Go, struct design can play a significant role in optimizing memory usage, especially when dealing with applications that need to handle a large number of structs. Understanding memory layout and the concept of alignment is crucial for writing efficient code. Let's dive into how struct field ordering impacts memory and how we can improve its design for better performance.

2024AWS

Easily Deploy Your Nanoc Website to S3 with GitHub Actions

Learn how to deploy your Nanoc website to an AWS S3 bucket using GitHub Actions. This step-by-step guide provides detailed instructions for automating your deployment process.

2024Software Architecture

Architectural Design for a Ride App such as OLA, UBER, RAPIDO

This blog post explores the design Pattern of a ride app such as OLA, UBER, RAPIDO.

2023AWS

Amazon SNS for Cost Reduction and Message Delivery Assurance in Startups

Amazon Simple Notification Service (SNS) is a fully managed messaging service that enables the reliable and scalable distribution of messages and notifications to a variety of endpoints, including mobile devices, email, SMS, and other AWS services, making it a powerful tool for communication and information dissemination.

2023AWS

Understanding S3 and S3 Policies

This blog post explores the fundamentals of Amazon S3, a powerful and versatile object storage service offered by AWS. We'll delve into the key features of S3, discuss S3 policies, and provide practical examples to illustrate how these policies work in real-world scenarios.