--- title: "Viv Chaudhary (@chuadharyviv) | Hashnode" description: "Platform & Infrastructure Engineer working in banking, focused on Kubernetes, and AI. Read the latest articles by Viv Chaudhary on Hashnode." url: "https://hashnode.com/@chuadharyviv" --- @chuadharyviv # Viv Chaudhary @chuadharyviv · Bangalore, India · Joined August 2026 Platform & Infrastructure Engineer working in banking, focused on Kubernetes, and AI ### [Build a Solid RAG System in One Weekend (2026 Edition)](https://truenorthbits.hashnode.dev/build-a-solid-rag-system-in-one-weekend-2026-edition?utm_source=hashnode&utm_medium=feed) The four decisions that actually determine whether your RAG system works - chunking, retrieval, reranking, and evaluation with the trade-offs the tutorials usually skip. 9 min read · [truenorthbits.hashnode.dev](https://truenorthbits.hashnode.dev/build-a-solid-rag-system-in-one-weekend-2026-edition?utm_source=hashnode&utm_medium=feed) [2](https://hashnode.com/posts/build-a-solid-rag-system-in-one-weekend-2026-edition/6aa04392e15956ac260ee923) [Sep 8](https://hashnode.com/posts/build-a-solid-rag-system-in-one-weekend-2026-edition/6aa04392e15956ac260ee923) ### [What Changed in AI in the Last 90 Days (Quick Round-up)](https://truenorthbits.hashnode.dev/what-changed-in-ai-in-the-last-90-days-quick-round-up?utm_source=hashnode&utm_medium=feed) The shifts that actually matter for builders - late May to mid-August 2026 7 min read · [truenorthbits.hashnode.dev](https://truenorthbits.hashnode.dev/what-changed-in-ai-in-the-last-90-days-quick-round-up?utm_source=hashnode&utm_medium=feed) [Aug 23](https://hashnode.com/posts/what-changed-in-ai-in-the-last-90-days-quick-round-up/6a8a6f83611030e19af1f98a) ### [Five Mental Models That Make Modern AI Click](https://truenorthbits.hashnode.dev/five-mental-models-that-make-modern-ai-click?utm_source=hashnode&utm_medium=feed) Tokens, context windows, embeddings, attention, and scale - the five ideas that stop new model releases from feeling like starting over 12 min read · [truenorthbits.hashnode.dev](https://truenorthbits.hashnode.dev/five-mental-models-that-make-modern-ai-click?utm_source=hashnode&utm_medium=feed) [Aug 22](https://hashnode.com/posts/five-mental-models-that-make-modern-ai-click/6a89e6f47fb7c33bd12d3aa2) ### [xAI Just Admitted What Agentic AI Actually Costs in Security Debt](https://truenorthbits.hashnode.dev/xai-just-admitted-what-agentic-ai-actually-costs-in-security-debt?utm_source=hashnode&utm_medium=feed) xAI shipped always-on agents with their own cloud computers and its own docs admit those computers aren’t security boundaries. That admission is this week’s real AI story. 5 min read · [truenorthbits.hashnode.dev](https://truenorthbits.hashnode.dev/xai-just-admitted-what-agentic-ai-actually-costs-in-security-debt?utm_source=hashnode&utm_medium=feed) [Aug 22](https://hashnode.com/posts/xai-just-admitted-what-agentic-ai-actually-costs-in-security-debt/6a893cca2b84abd721d04980)