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Node.js 26.8.1 (Current)

Node.js 26.8.0 (Current)

Node.js 24.20.0 (LTS)

React Frontend + Node.js Backend Error Tracking Explained: A Simple Setup

For a React frontend and Node.js notification service, start with backend error capture and put the same trace_id (or request_id) into browser summaries, API responses, and server logs. That gives the on-call engineer a…

Building Local-First Web Apps: Parsing HTML and PDFs to Markdown in the Browser

Local-first and privacy-focused web utilities are having a massive comeback. With browser engines becoming faster and WebAssembly/Web Workers maturing, there is rarely a reason to push sensitive user documents to an…

All Seven Sort Implementations Agree on 100.0% of 800 Fixture Cases, and What Blinds the Fixture Is Arithmetic

A multi-key table sort is not the comparison. It is what happens to the rows the comparison cannot separate. Return 0 for two rows and their arrangement is decided by whatever the query plan felt like that morning —…

The One Move Chomp's Proof Puts Its Finger On Is a Losing Move on 80 of the 99 Bars Up to 10x10

Chomp is a chocolate bar with a poisoned corner. A bite takes one square and everything down-and-right of it; whoever is forced to eat the poison loses. Three lines of strategy stealing prove the first player wins every…

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The Bug Class AI Coding Agents Keep Introducing (and How We Started Catching It in CI)

The pattern AI coding agents are good at producing a diff that works in the narrowest sense — the function still returns what the test expects. What they're not reliably good at is preserving properties nobody wrote a…

CinemaCineGlide — A Cinema Management System

I recently worked on CinemaCineGlide, a cinema management system built to make movie booking and cinema management easier and more organized. What does it do? The system provides features for managing movies, cinemas,…

What I Actually Had to Change When Moving to React Server Components

Originally published at parvejshah.com/blog/nextjs-16-turbopack-deep-dive by Parvej Shah. When Next.js introduced the App Router with React Server Components, the mental model shift was more significant than the API…

Building Software for Places Where the Internet Doesn't Work

Originally published at parvejshah.com/blog/offline-first-pwa-emergency-volunteer-networks by Parvej Shah. Blood donor matching is time-sensitive in a way most software problems aren't. When a patient needs a specific…

The Surprising Complexity of Injecting a UI into Someone Else's Web Page

Originally published at parvejshah.com/blog/building-manifest-v3-ai-chrome-extensions by Parvej Shah. When we started building Leadswave — a LinkedIn brand assistant Chrome extension — the plan seemed straightforward.…

Building a Chat-Based Sales Bot That Doesn't Drop Messages During Flash Sales

Originally published at parvejshah.com/blog/conversational-commerce-webhook-architecture by Parvej Shah. In Bangladesh and much of South and Southeast Asia, e-commerce doesn't look like what a Silicon Valley product…

Your AI Agent Evaluation Harness Is Lying to You

Your AI Agent Evaluation Harness Is Lying to You Your eval suite is green and your agent is still doing something dumb in production. Both of those things can be true at the same time, and the reason is uncomfortable:…

Payment Webhook Mistakes You Only Make Once (bKash & Nagad Idempotency)

Originally published at parvejshah.com/blog/defensive-webhook-engineering-payment-gateways by Parvej Shah. There's a class of bug that only appears in production, under real network conditions, with real money. You…

Measuring Order Book vs AMM Share on the XRP Ledger

When the AMM amendment activated on the XRP Ledger in 2024, the expectation was that liquidity would migrate into pools the way it did on every smart-contract chain before it. You do not have to speculate about whether…

Run AI in the Browser: Client-Side Background Removal and Feature Extraction with ONNX Runtime Web

For years, heavy computational tasks like computer vision, semantic segmentation, and deep feature extraction were strictly locked behind powerful backend server clusters equipped with expensive GPU arrays. When a user…

Download MovieRulz APK Watch Latest Movies & Web Series Anytime, Anywhere!

Thirteen years ago Movierulz started as a small Telugu movie index. Today it covers every Indian film industry, Tollywood, Mollywood, Kollywood, Sandalwood, Bollywood, plus Hollywood, Korean, and international cinema,…

We stopped trusting our test suite and pointed 28 tools at the real web

Every one of our amazon-product tests passed. The tool returned null for the price currency, null for the rating, null for every image, and the string "Brand: Amazon" where the brand should have been. Nothing looked…