Vijay T - Technical Blog

Step‑by‑step guide to building, testing, and deploying production‑grade AI agents with LangChain, LangGraph, and Haystack on Kubernetes, covering observability.

Learn to select a profitable niche, quickly build an AI agent with LangChain & OpenAI, pick the right business model, launch, and scale—all as a solo developer.

Explore the differences between WebRTC and WebSockets—transport, latency, security, scalability—and see which fits video calls, chat, gaming or telemetry.

A practical guide to choosing SVG or Canvas, with performance limits, benchmarks, optimizations, and hybrid strategies.

Learn to detect circular $ref loops in JSON Schema for Next.js—using a Set‑based client check and json-schema-ref-parser for server‑side validation.

Step‑by‑step guide to auto‑create isolated preview environments per PR with AWS Copilot and GitHub Actions, including DB schema cloning, secret injection, and automatic cleanup.

Learn how the Outbox Pattern atomically stores updates, guarantees event delivery, retries on broker failures, and routes errors to a dead‑letter queue.

Quick reference to Rust’s core types: ints, floats, bool, char, tuples, arrays, slices, structs, enums, references, String, Option, Result, Vec, pointers.

Authenticate Docker with Amazon ECR using the AWS CLI. This guide shows how to retrieve a login token, log in, avoid errors, and push or pull images.

Pull times for a 1.3 GB Docker image from Docker Hub vs. Amazon ECR on EC2, with quick speed‑up tips.

Separate auth logic with pure predicates and reusable higher‑order wrappers, and compose rules using OR/AND operators.

Discover quick fixes for slow Next.js builds on macOS: enable Turbopack, upgrade Node, trim transpilePackages, disable security scans, and tune your IDE.

Explore three ways to add a one‑hour in‑memory cache to Next.js—using node‑cache, a lightweight Map wrapper, or built‑in unstable_cache—and get deployment tips.

Step‑by‑step guide to install ChromaDB on macOS, run it embedded or via Docker, and create a simple RAG pipeline with OpenAI or local embeddings.

Learn how to style server‑side Markdown output with a self‑contained, dark‑mode ready CSS sheet that ensures readability, responsiveness, and a modern blog look—all scoped to a .message wrapper.

Learn how to migrate environment variables to AWS Secrets Manager for ECS tasks using JSON, CloudFormation, CDK, and Terraform, with IAM, rotation, tips.