Retrieval-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. HJul 19 · 10 min readaiwithjaani.hashnode.dev
How 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?" WJul 1 · 7 min readaiwithjaani.hashnode.dev
How 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 theMay 30 · 7 min readaiwithjaani.hashnode.dev
How 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 May 30 · 7 min readaiwithjaani.hashnode.dev
Expo 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. UnderstanMay 23 · 4 min readaiwithjaani.hashnode.dev
