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Our real-time data pipeline was failing due to mysterious throughput limits. The culprit? A little-known Kinesis Data Firehose limitation that has not…
Playwright is the best browser automation library in 2026. It's also the most fingerprinted, the most detected, and the most patched in anti-bot datab…
How to Call Windows Native APIs in Electron Calling Windows native APIs in an Electron app feels like wanting to see the ocean but only having a map. …
The 30-second pitch ccglass is a local reverse proxy that captures LLM API traffic from coding agent CLIs (Claude Code, Codex, DeepSeek, Kimi, etc.) a…
LangChain agents are built on LangGraph : the model calls tools in a loop until it returns a final answer. The high-level entry point is createAgent -…
TypeScript Without tsc in 2026: Type-Stripping in Node.js 24, Bun, and Deno Compared The End of tsc: Why Type-Stripping Changed Everything in 2026 Mos…
Most Node.js APIs start the same way. A server.js file. A few routes. Maybe an app.js if you've read a tutorial. Everything in one place because the a…
If you come to Go from JavaScript, one small thing surprises almost every developer. Open any package.json . Look near the top. It is always there: { …
When you call another service over HTTP, you are inheriting its worst day. If that dependency slows to a crawl, every request you make to it piles up,…
as developers, we are spending more and more time working alongside AI coding agents like Cursor , Claude Code , GitHub Copilot , Windsurf , or Cline …
When building high-concurrency backend services, two ecosystems dominate the conversation: Node.js and Go (Golang). If you ask the internet how they h…
Last week I shipped v2.0.2 of 3va — a JavaScript and TypeScript runtime written in Rust. Here is why I built it and what makes it different from Node.…
Last week I shipped v2.0.0 of 3va — a JavaScript and TypeScript runtime written in Rust. Here is why I built it and what makes it different from Node.…
📦 Code: github.com/USER/video-webhook-receiver (replace before publishing) TL;DR We build a production-grade webhook receiver for async video events (…
Last year, a security audit uncovered a vulnerability in our production environment. The finding: we were using Node.js 16, a version that had been ne…
When we shipped the first version of AI-generated replies for HelperX , each reply cost us about $0.011 in API spend. That sounds tiny until you multi…
I Built a Full Stack Academic Management System for My College — Here's How For my B.Tech final year project, me and my team built Student Sphere — a …
I was trying to tell someone something real in her first language — not "I missed you" from a dropdown, but the version that sounds like a person said…
This article was originally published on BuildZn . Everyone talks about agentic AI, but nobody explains how to stop these things from just making stuf…
If you're building automation that touches platforms with serious anti-bot systems, User-Agent rotation is what you do in week one. Then you spend the…
The Mongoose Caching Problem (And How We Solved It) From 300 RPS to 700+ RPS: A 2.2x Performance Breakthrough When you're building a Node.js applicati…
Some API requests can't finish in time for a single HTTP response. Generating a report, transcoding a video, running a batch import — these take secon…
A few months ago I had a small job to automate: every day, take a list of URLs from my site and notify Google and Bing that they'd changed, so new pag…
Your API hands out 50 records at a time across 400 pages. You need all of them. You do not need them all at once. Here's a very familiar situation tha…
Client-side regex catches typos, not throwaway inboxes. By the time a fake [email protected] is in your DB, your activation rate and sender reputati…
Geo-personalization — currency, language, "stores near you" — usually means shipping a 60 MB GeoIP database and keeping it updated, or paying per-seat…
Adding "summarize this" or "is this review positive?" to an app shouldn't mean signing up for an LLM provider, managing a key, handling rate limits, a…
Nobody teaches you how to think like a senior engineer because the people who can teach it are too busy doing it. They review your PR and leave one co…
I had 27,000+ photos and videos scattered across a Linux PC, external SSD, and multiple USB sticks. Every existing solution either required cloud acce…
For the last few years, I've been working mostly with Node.js for building scalable APIs, backend services, and cloud-based applications. Recently, I'…