In-depth, opinionated guides on shipping production AI systems — Retrieval-Augmented Generation (RAG), LangChain and LangGraph agent workflows, vector search, Next.js performance, TypeScript architecture, and the DevOps that holds it all together. Every post is written for engineers who have to make the trade-offs, not just describe them.
· Written by Niraj Kumar
Practical breakdowns of AI systems, scalable backends, modern web stacks, and production-ready engineering.
112 articles found
Stop polling APIs. Learn how to build real-time, event-driven multi-agent AI workflows with LangGraph, Ollama local LLMs, Node.js, Express, n8n, Make.com, Socket.io, Next.js, Docker, and AWS — a practical 2026 blueprint for sovereign AI automation.
Read ArticleBuild a zero-trust, sandboxed AI coding agent with LangGraph, Ollama, and Claude Code that runs Python, C++, and JavaScript in ephemeral, network-restricted Docker containers on AWS Linux, with JWT execution policies, PostgreSQL audit trails, and live Socket.io telemetry in a Next.js workspace.
Read ArticleA hands-on 2026 guide to building a self-hosted hybrid LLM gateway with Node.js, Express, Nginx, and Ollama. Route LangGraph traffic by query complexity and latency, cache semantically in PostgreSQL with pgvector, log token telemetry in MongoDB, stream live costs to a Next.js dashboard, and bill usage through Stripe, Razorpay, and Cashfree.
Read ArticleA hands-on 2026 guide to building secure TypeScript MCP servers that connect local Ollama models and Claude Code to PostgreSQL, MongoDB, and REST APIs, orchestrated with LangGraph, streamed to a Next.js dashboard, and deployed with Docker and Nginx on AWS.
Read ArticleBuild enterprise-grade human-in-the-loop AI agents that pause for approval before Stripe or Razorpay payouts. Learn LangGraph interrupts, PostgreSQL checkpointing, Socket.io real-time dashboards in Next.js, an Express resume API, JWT/OAuth RBAC, n8n alerts, and Docker deployment on AWS.
Read ArticleBuild a real-time, full-duplex voice AI agent from scratch. Learn how to wire whisper.cpp, Ollama, Piper, Socket.io, LangGraph, Next.js, Redux and JWT auth into a containerized stack behind Nginx on AWS Linux.
Read Article112 articles grouped into the subjects they go deepest on. Each hub collects the full series for that topic.
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