Team Management

The Portability Audit Take-Home: Grade Environment Assumptions, Not Features

A take-home that runs on the reviewer's laptop grades features; a take-home that runs anywhere grades engineering discipline. The task below asks a…

Using AutoClaws free GLM models usage from other sdks (opencode / claude code)

ive been maintaining this small opensource project GLM Proxy (glmproxy on npm) for a while and its finally on the level where im happy to share it o…

I'm 13. I Spent 101 Days Building a Secure Social Network with Node.js

Hey dev community! 👋🏻 I'm Seif, a software engineer with 4 years of experience who absolutely hates vibe-coding and prefers designing architecture b…

The Cold-Start Budget Packet: A Take-Home Where the Free Server Is Allowed to Vanish

A take-home that never simulates a host restart measures almost nothing about cost discipline. The packet below asks one question: after the machine…

I built an MCP server that lets AI agents book real hotel rooms (no OTA commission)

Booking.com takes 15-25% commission and owns the customer relationship. I run a small network of independent establishments in Luxembourg, and I wan…

Measure the Escalation Rate. A Local-First Router That Never Earns Back Is Just Latency.

A local-first router only pays off if tier 1 absorbs most of your traffic. If your local model answers 20% of prompts and escalates the rest, you di…

TypeScript Email Tests Need a Signal Pipeline

Email verification tests often become slow for a reason that is easy to miss: every test knows too much about the inbox. One test starts a poll. Ano…

Passwordless Phone Login in Express Node.js — SMS OTP Resend Flow

A food-delivery courier may request an OTP at a noisy pickup counter, miss the first message, and tap resend three times. That operational constrain…

I built a free email verification API, feedback welcome!

Got tired of fake signups on my projects, so I built a small API that validates emails in real-time. Checks format, MX records, disposable domains,…

Node.js Email Service: Auditing Deliverability, Template Testing, Preview, and Domain Auth

A compliance notice changes the email-service decision because a pleasant template editor and a provider-level "delivered" status are not an audit r…

Why Linear Webhook Bots Fail: The Telegram to n8n Architecture Autopsy

How to Replace a Fragile n8n Telegram Bot with a Decoupled State Machine TL;DR: Direct chat-to-API webhooks create an opaque operational black box t…

A live job search over 10,000 company career sites, built from public links (HN + the Internet Archive)

Job aggregators are great, but they're copies: scraped, deduplicated, sometimes days old. If you care about a specific slice, like startups and tech…

Looking to hire an AI Engineer. Must be into the latest AI trends and have contributed to Open Source Node-based projects. You’ll be building AI Agent Factories for https://osf.it.uic.edu projects. Comment w/ GitHub if interested and I’ll get in touch.

I built a custom JSX runtime for Discord bots

TL;DR fluxcord is a stateful Discord UI framework I extracted out of my own bot. Screens are declared in TSX and buttons bind to plain functions ins…

Generated Promo Videos API: Store and Expire Game Assets with Telemetry

To store and expire generated promo videos safely, make retention part of the API record instead of relying on a storage folder and a cleanup timer.…

Before You Push: Building a Local Twin for GitHub Actions

Before You Push: Building a Local Twin for GitHub Actions There is a particular kind of frustration every developer eventually learns. You write the…

PulseMind: Building an AI Product Intelligence System That Learns From Decisions

Introduction I’m excited to share PulseMind, an AI-powered Product Intelligence platform that I built for HackwithHyderabad 3.0. I built PulseMind a…

Beyond "Magic" Frameworks: Why I Designed Xeno Core to Scale the Backend (and the Entire Ecosystem) in TypeScript

When managing the development of complex software systems in Node.js, the choice of architectural framework determines the long-term fate of the cod…

Node.js Service: HR Onboarding Packets, Asynchronous Jobs, Validation Under Load

Short answer: use a durable asynchronous job with bounded retries, two-stage validation, and per-job temporary files; return a job ID quickly so loa…

Build an Explainable Vendor-Risk Gate in Node.js

A vendor signs up with a company domain. Your application wants one fast answer: approve or reject? The network cannot give you that answer. It can…

Building Maruf-X-Hub: An All-in-One Lightweight Web Utility & API Platform

Building Maruf-X-Hub: An All-in-One Lightweight Web Utility & API Platform As developers and tech enthusiasts, we often find ourselves context-s…

Scaling Socket.IO Horizontally: Why Your Real-Time Architecture Breaks Beyond a Single Process

Part 1: The Illusion of Single-Server Simplicity WebSockets are the foundation of modern interactive web apps. Whether you are synchronizing live cu…

The LLM Is Not Your Ranker. Four Layers, and It Only Touches Two

The pitch usually goes: send the catalog and the user's history to a model, get back a ranked list, delete the recommender. It demos beautifully on…

Good strategy, bad execution on Polymarket — need help improving my execution layer

Hi everyone, I’m working on a Polymarket trading bot. The strategy looks decent in backtests/paper trading, but live P&L is negative. I’m fairly…

I open-sourced 3 small Node utilities I pulled out of building an edtech platform

I've spent the last while building MCQplex , an exam-prep platform for Nepal's NEB curriculum. Along the way I built a few pieces of infrastructure…

Dumping Every User's Plaintext Password Without Touching the Database

Exploiting a forgotten debug statement that logs plaintext passwords and a hidden SIEM dashboard with hardcoded credentials to retrieve a flag. Some…

Why Your OpenAI JSON Calls Randomly Fail with "could not parse JSON body" (And How to Fix It)

``You're calling OpenAI from Node.js. 99% of requests work. Then randomly: BadRequestError: 400 could not parse JSON body Or: SyntaxError: Invalid J…

I Built TGDown, a Chrome Extension for Downloading Telegram Web Media

I built TGDown , a Chrome extension that adds download controls for images and videos in Telegram Web. The original product goal was simple: when us…

Expiry Windows: Node.js Email Status, SMS Escalation, and Event Traces

TL;DR: For Node.js event notifications, send transactional email first, poll its delivery status, and use SMS fallback only while the password-reset…

Node.js Sending Domain Onboarding: One Bundle Setup, Staged Mail Verification for Cutover

For an e-commerce sending domain, a one-step onboarding bundle can simplify setup, but it cannot make DNS and mail verification happen at one instan…