Chat With Any YouTube Video — My ₹0 RAG App Is Now Live (Here's How the Frontend Works)The Flutter Web frontend for my ₹0 RAG backend is live: tappable timestamp citations, local-first IndexedDB storage, and 3 more production walls.12 min read·pankajbatra.hashnode.dev1Aug 19
I Deployed a Full RAG Backend for ₹0/Month — Here Are the 3 Walls I HitYouTube RAG chat backend on FastAPI, Groq, Gemini & ChromaDB for ₹0/month — plus the 3 production walls I hit: OOM, model deprecation, IP blocks.13 min read·pankajbatra.hashnode.devAug 9
Kafka for Engineers Who've Only Used REST: What Actually ChangesWhen I first read that Kafka was a "distributed event streaming platform," I nodded, closed the tab, and went back to writing REST endpoints. It took me a while to realize the problem wasn't Kafka. It8 min read·pankajbatra.hashnode.devAug 1
Building a Server-Driven Survey Engine in Flutter Without a WebViewEnterprise apps often need forms that change without an app-store release. New questions appear. Visibility rules change. Validation logic evolves. Dropdown options come from remote services. Nested s6 min read·pankajbatra.hashnode.devJul 21
5 Power Automate Design Mistakes That Make Your Flows Slow (And How to Fix Them)Power Automate makes it incredibly easy to automate business processes. You can connect forms, SharePoint, Outlook, Teams, SQL Server, and hundreds of other services with very little code. However, as4 min read·pankajbatra.hashnode.devJul 13
