JJaaniinaiwithjaani.hashnode.dev·1d ago · 10 min readRetrieval-Augmented Generation (RAG)Large Language Models (LLMs) like ChatGPT, Claude, and Gemini have changed the way we interact with AI. They can write code, summarize documents, explain complex topics, and even help with research. H00
JJaaniinaiwithjaani.hashnode.dev·Jul 1 · 7 min readHow Large Language Models (LLMs) Work: From Prompt to ResponseImagine you're chatting with a super-smart friend who has read a huge part of the internet, thousands of books, research papers, documentation, and conversations. You ask: "How do I center a div?" W00
JJaaniinaiwithjaani.hashnode.dev·May 30 · 7 min readHow Instagram Stores Reels, Photos, and Drafts Behind the ScenesImagine this. You spend 20 minutes recording a Reel. You trim clips. Add music. Adjust filters. Write a caption. Then suddenly someone calls you. You close Instagram. A few hours later, you reopen the00
JJaaniinaiwithjaani.hashnode.dev·May 30 · 7 min readHow WhatsApp Works Without Internet: Offline Messaging and Sync ExplainedImagine this. You're on a flight with Airplane Mode enabled. You open WhatsApp, type: "I'll reach by 8 PM." and press Send. Surprisingly, the message immediately appears in the chat. But there's no 00
JJaaniinaiwithjaani.hashnode.dev·May 23 · 4 min readExpo Router vs React Navigation: The Mental Model That Changes EverythingMany developers compare Expo Router and React Navigation as if they're competing products. They aren't. The reality is much more interesting. Expo Router is built on top of React Navigation. Understan00
