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ship the stack
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Tagged: nodejs
MCP Explained: Build a Natural-Language PostgreSQL Assistant for Claude
MCP explained through a project: how Model Context Protocol turns N x M integrations into N + M, then a read-only PostgreSQL server Claude Desktop can query.
10 min readHow Many Requests Can a Node.js Server Really Handle?
How many requests can a Node.js server really handle? Express load tests on Heroku and AWS against Django, a 40K rps capacity estimate, and what slows APIs.
6 min readAn Open-Source PR Review Bot: LangGraph, Node.js and GitHub Webhooks
Review pull requests with a staged LangGraph agent that checks security, performance and architecture, and posts line-level comments through the GitHub API.
4 min readWhy React Won the Frontend but the Backend Stayed Polyglot
Why large companies pair React with Java, Go and Python services and keep Node.js for BFF layers, with guidance for junior developers on what to learn next.
6 min readSemantic Search in PostgreSQL With pgvector and Node.js, No LLM Needed
Semantic search in PostgreSQL with pgvector and Node.js, no LLM: MiniLM embeddings, chunks, an IVFFlat index, distance operators and how to read the scores.
8 min readMCP for Beginners: Build a Server and Client, Then Take It to Enterprise
MCP for beginners: the N x M problem, core ideas in plain terms, a TypeScript helpdesk server and client in Node.js, and the step up to secure HTTP deploys.
14 min readValidate Node.js Environment Variables with Zod and TypeScript
Stop reading process.env all over Node.js code. One env.ts file validated with Zod catches missing secrets at boot and gives the app typed TypeScript config.
3 min readSelf-Hosted RAG for Document Q&A: LangChain, pgvector and Swappable LLMs
How an open-source RAG app turns PDFs and DOCX files into answers: chunking, pgvector, a one-setting switch between OpenAI and Claude, and lessons from building on a budget.
5 min readPractical notes: TypeScript Developers Are Using Zod Wrong. It’s Not Just a
Operable walkthrough of Practical notes: TypeScript Developers Are Using Zod Wrong. It’s Not Just a: contracts, checks, and drop-in code slots for teams shipping this pattern.
7 min read
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