SKSantosh Kumar Vishwakarmainsantoshdev.hashnode.dev·May 20 · 7 min readHow WhatsApp Would Be Built Today Using Expo Router? Building a modern large-scale app like WhatsApp in 2026 with Expo Router and React Native requires more than just coding screens. It’s about designing a scalable architecture that can handle millions 00
SKSantosh Kumar Vishwakarmainsantoshdev.hashnode.dev·May 19 · 6 min readExpo Router vs React Navigation - Which One Should You Use in 2026?When building a mobile application using React Native, one of the first architectural decisions you make is how users will move between screens. This is where routing and navigation come into play. Fo00
SKSantosh Kumar Vishwakarmainsantoshdev.hashnode.dev·May 5 · 4 min readHow React Virtual DOM works under the Hood?Why Direct DOM Manipulation is Slow? When you build a web app using the browser’s Real DOM, every small change like updating text, adding elements, or changing styles forces the browser to recalculate00
SKSantosh Kumar Vishwakarmainsantoshdev.hashnode.dev·Aug 22, 2025 · 7 min readAdvanced RAG: Scaling, Accuracy, and Production-Ready PipelinesRetrieval-Augmented Generation (RAG) is the backbone of modern AI systems that need to reason over private or domain-specific data. Real-world RAG pipelines often crumble under messy user input, ambiguous queries, or irrelevant retrievals. The classi...00
SKSantosh Kumar Vishwakarmainsantoshdev.hashnode.dev·Aug 19, 2025 · 2 min readWhy Your RAG System Might Be FailingRetrieval-Augmented Generation (RAG) is a powerful architecture that combines document retrieval with large language model (LLM) generation. It promises grounded, accurate, and scalable AI—but it’s not foolproof. Many developers find their RAG pipeli...00
