Showing 12 of 122 articles on AI systems, retrieval, backend engineering and DevOps.
Learn how to replace brittle, rule-based RPA scripts with resilient, goal-driven multi-agent systems built with CrewAI, Playwright, and Node.js. Includes real code for autonomous web navigation, JSON validation, and PostgreSQL integration.
Instrument Next.js with OpenTelemetry, trace server-side LangChain calls, and attribute AI inference costs per tenant in PostgreSQL for usage billing.
Wire Claude Code into GitHub Actions to review pull requests across security, performance and testability — line-by-line, before a human opens the diff.
Stop cross-tenant leaks in B2B AI SaaS — PostgreSQL Row-Level Security for embeddings, tenant IDs from Next.js JWTs, and isolated retrieval.
Build production human-in-the-loop approval gates in LangGraph with AsyncPostgresSaver, interrupt_before, and Command-based resume flows.
Build a fully local GraphRAG system with LangChain, Ollama and PostgreSQL — extract entity triplets, store a knowledge graph, run multi-hop queries.
Automate blue-green deployment for Node.js on AWS EC2 with Docker, Nginx and GitHub Actions — no dropped requests, no killed WebSocket connections.
Scale Socket.io horizontally with the Redis Streams adapter, secure WebSocket handshakes with JWT middleware, and keep presence accurate.
Build an MCP server in TypeScript with the official SDK — expose PostgreSQL inspection tools over stdio, sanitize queries, and wire it into Claude Code.
Fine-tune a domain-specific LLM locally with Unsloth and QLoRA, export it to quantized GGUF, and serve it with a custom Ollama Modelfile.
Integrate a compiled Unity 3D engine into React Native using JSI, Fabric and the bridgeless architecture for synchronous, zero-latency calls.
Build a fully self-hosted, zero-cost AI automation pipeline with n8n, Ollama, Docker and PostgreSQL — process webhooks with local LLMs, stay offline.