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Networking Machinery for Software Engineers

After 10 years of working as a software engineer in web development, I joined a company in the energy industry. To be precise, in solutions for the…

Automated B2B Brand Deck Keeper Agent: Architecture, Tool Schemas & Integration Guide

Why conversational agent prompts fail in production—and the exact typed tool schemas, MCP servers, and dry-run safeguards required for Autonomous AI…

How to Build an IT Asset Assignment and Return System (SQL + REST API)

Imagine your company has 50 employees and 80 IT assets, including laptops, monitors, and smartphones. An employee leaves the organisation. HR confir…

How to set up Claude Code for your whole team (not just your own laptop)

Most developers who try Claude Code start the same way: open a repo, ask for a change, and get something that is almost right. The code compiles, bu…

One AI Model for Everything? A Practical Guide to Task-Based Model Routing

One AI Model for Everything? A Practical Guide to Task-Based Model Routing When teams first add AI to an application, the architecture is usually si…

# The MERN Auth Flow: How JWT actually works (Without the headache)

Authentication is the most confusing part of learning the MERN stack. When I started building full-stack apps, I struggled to understand what actual…

Your CLAUDE.md Is Too Long: What to Cut So Claude Code Follows It

You added a rule to your CLAUDE.md . Claude Code ignored it. So you added it again, in capitals, a bit further down. A month later the file is 600 l…

I Committed 518,000 Lines in 30 Days. Production Kept 235,000.

Originally published on my blog — read it there with the full context, code and updates . Last week I did something I almost never bother to do: I c…

ESP32 Web Serial API: Live Sensor Data in Next.js

What we built An ESP32 plugged into a PC over USB, with a web app (Next.js) connecting directly to the serial port through the Web Serial API and sh…

One Password Shut Down a US Fuel Pipeline

In May 2021, Americans were filling plastic bags with gasoline. Panic buying. Lines wrapped around the block. A regional state of emergency declared…

HELLO FRIENDS

I build crypto signal engines. My flagship system, USS (Unified Signal Scanner), combines momentum, multi-timeframe trend analysis, Smart Money Conc…

Designing a Distributed Cache Inspired by The Lord of the Rings: One Insight to Rule Them All

The Quest Begins (The "Why") Ever felt like your application is constantly begging the database for the same piece of data over and over? I remember…

Exponential backoff with jitter: 64 of 100 LLM calls still failed

Originally published at tensorust.com . TL;DR: I fired 100 LLM calls at once into a rate limiter that refills 10 requests a second, using the defaul…

You Cannot Unit Test a Summary. You Can Still Test It.

Every developer I know has the same reflex when a feature is done: write a test that feeds it an input and asserts the output. That reflex is correc…

The Pitfalls of Automated Character Encoding Detection in Cross-System CSV Pipelines and Handling Malformed Byte Sequences

The Pitfalls of Automated Character Encoding Detection in Cross-System CSV Pipelines and Handling Malformed Byte Sequences 1. Architectural Overview…

Part 3 — Networking: From `fetch()` to Packets

Most web developers use HTTP every day. We write fetch() , call APIs, send requests, and handle responses. But lets understand what happens undernea…

Everything You Need to Know About Generated Infrastructure and Drift

Generated infrastructure is configuration that a tool writes from a higher-level description: a Dockerfile from a service definition, a routing file…

Spoofing WiFi MAC Addresses with a Windows Kernel Driver

1. What a MAC address is A MAC address is six bytes. Convention writes them as hex pairs separated by colons: A4:5E:60:C3:1B:07 The first three byte…

Écrire un article sur les Web Workers en JavaScript

Debouncing vs. Throttling in JavaScript: How to Choose JavaScript interfaces often receive events faster than they need to perform useful work. A se…

Rocket: The Rust Web Framework Built Around Ergonomics

Most Rust web frameworks ask you to compose routing and middleware explicitly. Rocket asks you to describe what a route expects, and then gets out o…

Why Client Feedback Loops Are Broken (And How We Built a Zero-Login DOM Overlay to Fix Them)

If you’ve ever built a website for a client, you know the exact pain cycle: You spend two weeks building a pristine frontend in Webflow, Framer, or…

RevanScript (RVS) Programming Language (RVS-Lang)

Introducing RevanScript (RVS) — My Own Programming Language Written in C Hello, developers! My name is Revan Babayev, and I am the creator and prima…

Your TypeScript Is Lying to You, and These 5 Places Hide Real Bugs

TypeScript's most dangerous keyword is two letters long. as does not convert anything. It does not check anything. It tells the compiler "trust me",…

One Command, 18 Generated Files: Inside TDK CLI's Local Stack

I ran TDK CLI on a scratch project to count what it generates. The answer is 18 files per frontend service , not 17. I checked the count on the CLI…

Algorithmic Sound Design with L-Systems and Granular Synthesis

NLP with .NET

NLP with .NET A deep-dive walkthrough of Natural Language Processing for .NET developers — covering text classification, sentiment analysis, named e…

How to fix "port already in use" on a Mac (and stop it happening)

You run npm run dev and get this: Error: listen EADDRINUSE: address already in use :::3000 Something is already listening on port 3000. Usually it's…

Why Most Business Calculators Lie to You: The Mathematics of Integer Bounds and Capacity Value

By Engineering Team, JC TechLabs Published for DEV Community, Hashnode & Technical Publications Canonical URL: https://jctechlabs.com/tools/ Sou…

Why I Chose Computer Science and What I Hope to Build

Hi everyone! I'm a first-year Bachelor of Science in Computer Science (BSCS) student. I'm still a beginner in programming, but I'm excited to learn…

Every regex is written once and read a hundred times. Optimize for the readers.

Somewhere in a codebase you own there's a regex that three people can write and nobody can read. Mine was a date-validation pattern — forty-some cha…