# Ratn Labs Systems thinking, backend architecture, and AI engineering. Building scalable systems and sharing technical insights. This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles. ## The HTTP QUERY Method and RFC 10008 DevFeed: [The HTTP QUERY Method and RFC 10008]() Original publisher: [Read original article]() Author: ratneshmaurya2311@gmail.com (Ratnesh Maurya) Published: 2026-07-03T00:00:00Z Content type: tutorial Language: en Sources: [Ratn Labs]() Topics: [HTTP](), [Query (disambiguation)]() Tags: [api-design](), [backend](), [examples](), [http](), [query](), [web-development](), [web-development-http-backend-api-design]() ### AI overview This tutorial explains the HTTP QUERY method described in RFC 10008, including why GET and POST may be insufficient for complex searches and how QUERY works through examples. ### Source excerpt HTTP finally has a QUERY method. Learn what RFC 10008 changes, why GET and POST fell short for complex searches, and how QUERY works -- with simple examples. ## Go 1.26.2: Security Fixes, Regression Patches, Upgrade Playbook DevFeed: [Go 1.26.2: Security Fixes, Regression Patches, Upgrade Playbook]() Original publisher: [Read original article]() Author: ratneshmaurya2311@gmail.com (Ratnesh Maurya) Published: 2026-04-09T00:00:00Z Content type: release Language: en Sources: [Ratn Labs]() Topics: [Go Language](), [upgrade](), [patches](), [Security]() Tags: [backend](), [beginner](), [go](), [go-security-backend-release-engineering](), [golang](), [patches](), [release-engineering](), [security](), [technical](), [upgrade]() ### AI overview This article covers the Go 1.26.2 release, including its security fixes and regression patches, and provides guidance for upgrading safely in production. ### Source excerpt A beginner-friendly and technical deep dive into Go 1.26.2: what changed, why it matters, and how to upgrade safely in production. ## Role-Based AI Persona Packs for Claude Code, Cursor, and VS Code DevFeed: [Role-Based AI Persona Packs for Claude Code, Cursor, and VS Code]() Original publisher: [Read original article]() Author: ratneshmaurya2311@gmail.com (Ratnesh Maurya) Published: 2026-03-21T00:00:00Z Content type: article Language: en Sources: [Ratn Labs]() Topics: [Artificial Intelligence](), [Claude Code](), [cursor](), [Open Source](), [vs-code](), [Code]() Tags: [ai](), [ai-developer-tools-cursor-claude](), [claude](), [claude-code](), [code](), [cursor](), [developer-tools](), [open-source](), [tooling-and-dx](), [vs-code]() ### AI overview The article presents a free, open-source collection of 38 role-based AI persona packs for Claude Code, Cursor, and VS Code. Users can copy a persona folder into a project to configure the AI coding assistant as a specialist. ### Source excerpt A free, open-source collection of 38 role-based AI persona packs for Claude Code, Cursor, and VS Code. Copy one folder into your project and your AI acts like a seasoned specialist. ## Five Caching Strategies Every Backend Dev Should Know DevFeed: [Five Caching Strategies Every Backend Dev Should Know]() Original publisher: [Read original article]() Author: ratneshmaurya2311@gmail.com (Ratnesh Maurya) Published: 2026-02-24T00:00:00Z Content type: tutorial Language: en Sources: [Ratn Labs]() Topics: [Caching](), [Back end](), [Development]() Tags: [backend](), [beginner](), [caching](), [caching-strategies](), [guide](), [system-design](), [system-design-backend]() ### AI overview A beginner-friendly guide to five distributed caching strategies: Cache-Aside, Read-Through, Write-Through, Write-Back, and Write-Around, including when to use each. ### Source excerpt A beginner-friendly guide to Cache-Aside, Read-Through, Write-Through, Write-Back, and Write-Around, with when to use each. ## Chrome 144's Element: Declarative Location Access DevFeed: [Chrome 144's Element: Declarative Location Access]() Original publisher: [Read original article]() Author: ratneshmaurya2311@gmail.com (Ratnesh Maurya) Published: 2026-02-24T00:00:00Z Content type: article Language: en Sources: [Ratn Labs]() Topics: [Chrome](), [HTML](), [Web Development]() Tags: [chrome](), [declarative](), [geolocation](), [html](), [imperative](), [location](), [privacy](), [web-development]() ### AI overview This article describes Chrome 144's new HTML element for declarative, user-driven location access. It explains that the element can simplify geolocation access, improve privacy, and replace imperative navigator.geolocation calls. ### Source excerpt Learn how Chrome 144's new HTML element simplifies location access, improves privacy, and replaces imperative navigator.geolocation calls with a declarative, user-driven approach. ## How Files Are Stored, Deleted, and Copied Inside Your Computer DevFeed: [How Files Are Stored, Deleted, and Copied Inside Your Computer]() Original publisher: [Read original article]() Author: ratneshmaurya2311@gmail.com (Ratnesh Maurya) Published: 2026-02-20T00:00:00Z Content type: tutorial Language: en Sources: [Ratn Labs]() Topics: [Filesystems](), [systems](), [file]() Tags: [architecture](), [beginner](), [computer](), [computer-science](), [computer-science-system-design](), [deep-dive](), [files](), [storage](), [system-design]() ### AI overview A beginner-friendly tutorial explaining how files are stored on disk, why deleting a file can be nearly instantaneous, and why copying files takes time. It introduces file systems and storage architecture. ### Source excerpt 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. ## How Data Compression Works: Huffman Coding, ZIP, and TAR.GZ DevFeed: [How Data Compression Works: Huffman Coding, ZIP, and TAR.GZ]() Original publisher: [Read original article]() Author: ratneshmaurya2311@gmail.com (Ratnesh Maurya) Published: 2026-02-19T00:00:00Z Content type: tutorial Language: en Sources: [Ratn Labs]() Topics: [Compression](), [data](), [coding](), [Zip]() Tags: [backend](), [coding](), [compression](), [computer-science](), [computer-science-backend](), [data](), [deep-dive]() ### AI overview This deep dive explains the mathematics behind data compression, including Huffman Coding and the architectural differences between ZIP and TAR.GZ. ### Source excerpt A deep dive into the mathematical 'magic' behind data compression, from Huffman Coding to the architectural differences between ZIP and TAR.GZ. ## Building This Blog: A Modern Next.js Blog with Markdown DevFeed: [Building This Blog: A Modern Next.js Blog with Markdown]() Original publisher: [Read original article]() Author: ratneshmaurya2311@gmail.com (Ratnesh Maurya) Published: 2025-09-08T00:00:00Z Content type: tutorial Language: en Sources: [Ratn Labs]() Topics: [Next.js](), [Tailwind CSS](), [TypeScript](), [Markdown](), [Web Development](), [Search engine optimization (SEO)]() Tags: [blog](), [css](), [guide](), [markdown](), [next-js](), [seo](), [tailwind-css](), [typescript](), [web-development]() ### AI overview A guide to building a blog with Next.js, TypeScript, Tailwind CSS, and Markdown for content management, with attention to performance and SEO. ### Source excerpt 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. ## Optimizing Memory Layout in Go: A Deep Dive into Struct Design DevFeed: [Optimizing Memory Layout in Go: A Deep Dive into Struct Design]() Original publisher: [Read original article]() Author: ratneshmaurya2311@gmail.com (Ratnesh Maurya) Published: 2025-01-10T00:00:00Z Content type: tutorial Language: en Sources: [Ratn Labs]() Topics: [Go Language](), [ordering]() Tags: [alignment](), [backend](), [benchmarks](), [deep-dive](), [design](), [go](), [go-backend-system-design](), [golang](), [memory](), [optimizing](), [padding](), [practical](), [system-design](), [tools]() ### AI overview This article explains how Go struct field ordering affects memory usage through alignment and padding. It includes benchmarks across millions of allocations and practical tools for identifying wasted space. ### Source excerpt How Go struct field ordering affects memory via alignment and padding, with benchmarks across millions of allocations and practical tools to detect wasted space. ## Deploy a Nanoc Static Site to S3 with GitHub Actions DevFeed: [Deploy a Nanoc Static Site to S3 with GitHub Actions]() Original publisher: [Read original article]() Author: ratneshmaurya2311@gmail.com (Ratnesh Maurya) Published: 2024-11-23T00:00:00Z Content type: tutorial Language: en Sources: [Ratn Labs]() Topics: [Amazon S3](), [GitHub Actions](), [Deployment](), [AWS IAM](), [Amazon Web Services]() Tags: [aws](), [aws-s3](), [cloud-devops](), [complete](), [deploy](), [deployment](), [github-actions](), [guide](), [iam](), [policy](), [s3](), [setup](), [static](), [static-site](), [using](), [website](), [workflow](), [yaml]() ### AI overview A step-by-step tutorial explains how to automate deployment of a Nanoc static website to AWS S3 with GitHub Actions. It covers the S3 bucket policy, IAM setup, and the complete workflow YAML. ### Source excerpt A step-by-step guide to automating Nanoc website deployment to AWS S3 using GitHub Actions, including S3 bucket policy, IAM setup, and the complete workflow YAML. ## Architectural Design for a Ride App such as OLA, UBER, RAPIDO DevFeed: [Architectural Design for a Ride App such as OLA, UBER, RAPIDO]() Original publisher: [Read original article]() Author: ratneshmaurya2311@gmail.com (Ratnesh Maurya) Published: 2024-07-30T00:00:00Z Content type: article Language: en Sources: [Ratn Labs]() Topics: [microservices architecture](), [Architecture & Design](), [gRPC](), [App]() Tags: [architecture](), [backend](), [microservices](), [microservices-architecture](), [queues](), [rest](), [software-architecture](), [system-design](), [system-design-backend](), [tracking](), [vs]() ### AI overview An overview of architectural design for a ride-sharing app, covering microservice boundaries, REST, gRPC, message queues, geolocation tracking, and the trade-offs between starting with a monolith and adopting microservices. ### Source excerpt Microservices architecture for ride-sharing: service boundaries, REST vs gRPC vs message queues, geo-location tracking, and trade-offs between monolith-first and microservices. ## Amazon SNS: Cost Reduction and Reliable Delivery for Startups DevFeed: [Amazon SNS: Cost Reduction and Reliable Delivery for Startups]() Original publisher: [Read original article]() Author: ratneshmaurya2311@gmail.com (Ratnesh Maurya) Published: 2023-12-10T00:00:00Z Content type: article Language: en Sources: [Ratn Labs]() Topics: [Messaging](), [Amazon Simple Queue Service (SQS)](), [amazon]() Tags: [amazon](), [automatic](), [aws](), [backend](), [cloud-devops](), [cost](), [delivery](), [messaging](), [queues](), [sqs](), [system-design](), [system-design-backend-cloud-devops]() ### AI overview This article discusses how Amazon SNS can help startups reduce messaging costs through pay-per-message pricing and support message delivery with automatic retries, dead letter queues, and multi-region delivery. It also considers when Amazon SQS may be a better fit. ### Source excerpt How Amazon SNS helps startups cut messaging costs with pay-per-message pricing, automatic retries, dead letter queues, and multi-region delivery -- and when SQS might be a better fit. ## S3 Policies Explained: Bucket Policies vs IAM Policies vs ACLs DevFeed: [S3 Policies Explained: Bucket Policies vs IAM Policies vs ACLs]() Original publisher: [Read original article]() Author: ratneshmaurya2311@gmail.com (Ratnesh Maurya) Published: 2023-11-23T00:00:00Z Content type: tutorial Language: en Sources: [Ratn Labs]() Topics: [Amazon S3](), [Access Control](), [AWS IAM](), [Authorization](), [Encryption](), [JSON]() Tags: [access-control](), [aws](), [backend](), [cloud-devops](), [cloud-devops-backend](), [encryption](), [examples](), [iam](), [json](), [permissions](), [policies](), [s3]() ### AI overview A tutorial explaining how Amazon S3 access control works by comparing bucket policies, IAM policies, and ACLs, with JSON examples covering public read access, encryption enforcement, and user-scoped permissions. ### Source excerpt How S3 access control works -- bucket policies vs IAM policies vs ACLs, with JSON examples for public read, encryption enforcement, and user-scoped permissions.