Stop Unnecessary Re-renders in React: A Practical Guide to Faster Applications
Introduction React is fast, but that doesn't mean every React application is. One of the most common performance problems—especially in growing applic…
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Domain Search to Render: How the web works behind the scenes
Hello everyone! Recently, I learned about how the web works, thanks to one of TryHackMe’s modules that focuses on just that. I had always known there …
How to Deploy a Secure Hub-and-Spoke Cluster Across Proxmox LXC
If you are running multiple self-hosted services on a single Proxmox node, leaving them on a default flat network ( vmbr0 ) is a massive security vuln…
How to Evaluate an AI Video Generator Without Wasting Credits: A Repeatable Test Harness
Most AI video demos show the same thing: A polished final clip A prompt A claim that the result was generated in seconds What they usually do not show…
Building Real-Time AI Translation Assistance with FastAPI, Claude, and Server-Sent Events
How we added an on-demand translation help feature to our book translation platform, streaming LLM suggestions for tricky passages. At LectuLibre, our…
Architecting Bulletproof SaaS Billing with Stripe: Webhooks, Proration, and Usage Metrics
Architecting Bulletproof SaaS Billing with Stripe Building a SaaS product is a marathon, but billing is where developers often trip over their own sho…
Scraping Sites That Block Bots: Cloudflare, DataDome & PerimeterX
For most of the web, scraping is a solved problem: fetch the URL, parse the HTML, done. The interesting sites — the ones with prices, listings, review…
How to Verify a SHA-256 Checksum on Windows, macOS, and Linux
How to Verify a SHA-256 Checksum on Windows, macOS, and Linux You download an ISO, installer, archive, or release binary. The publisher provides a lon…
What More Than Three Decades of Acrobat JavaScript Development Taught Me About Interactive PDF Forms
Interactive PDF forms are often treated as little more than electronic versions of paper documents. A user enters information, selects a few checkboxe…
A JSON-configurable Git alias wrapper
Intro The idea came from noticing a pattern in my own workflow: a small set of git commands covers the majority of my daily usage. Put in Pareto terms…
How to Turn an Architecture Guide into Developer Onboarding
An architecture guide often answers the wrong question for a new contributor. It tells them what components exist, where repositories live, and which …
How to Connect an OpenAI SDK App to an OpenAI-Compatible API
Many applications already use the OpenAI SDK. Moving to another compatible gateway should not require rewriting the whole application. In most cases, …
My Robot Accountant Got an Eviction Notice. So We Moved: Migrating from Bedrock Agents Classic to AgentCore
Ciao Amici 👋 Grab your chai, because the robot accountant is back, and this time we have a moving-day story. If you read my last article, you know I b…
How to Generate E-commerce Product Pages in Bulk with AI
Article Summary Bulk-generating product pages with AI looks simple: send product attributes to a model and ask it to write persuasive copy. In practic…
Mastering Python Futures: From Basic Submissions to Event-Driven Concurrency
When building modern Python applications—whether scraping web pages, fetching data from external APIs, or querying databases—IO-bound operations often…
Building a C++ HTTP Server from Scratch (Part 1): Setting Up TCP Sockets
Introduction In this series I will be going through how to build an HTTP Server from scratch in C++ using POSIX APIs, and actually have it serve a web…
From Software Engineer to AI Engineer - Part 1: A whole new world
You are a software engineer. Your craft honed through years of careful practice. Then suddenly, there are these chatbots and agents. Overnight, your c…
Cloud PBX for Legal Sector: Technical Architecture Guide
Cloud PBX gets pitched as a phone system upgrade. That framing undersells what it actually is: a real-time telephony application that connects VoIP in…
Debugging LLM Calls: How to Trace What Your AI Agent Actually Did
So I was messing around with a little side project, a chatbot that answers questions about the World Cup. Fun, low stakes, nobody's paycheck depends o…
Build a Real-Time Notification System with Server-Sent Events
Build a Real-Time Notification System with Server-Sent Events tags: python, fastapi, tutorial, webdev tags: python, fastapi, tutorial, webdev Build a …
Building a Real-Time Word Counter in JavaScript
Why Build One? Whether you are building a modern CMS, an in-browser markdown editor, or a custom blogging platform, real-time text analysis is a funda…
Python Abstract Base Classes: Design Patterns
Python Abstract Base Classes: Design Patterns tags: python, oop, tutorial, programming tags: python, oop, tutorial, programming You’ve probably writte…
Build a QR Code Generator with Python
Build a QR Code Generator with Python tags: python, tools, tutorial, beginners tags: python, tools, tutorial, beginners Imagine walking into a coffee …
Engineering Reliable Pagination for Public TikTok Data
TikTok's public web endpoints do not always return the page size an application requests. One route may return a small native window, another may unde…
Building Local AI Agents in Java with Tools4AI and Ollama: An Insurance Claims Use Case
Tools4AI is a 100% Java agentic AI framework that turns any annotated Java method into an AI-callable action. Ollama runs open models like Llama 3.1 a…
Industrial Heater Sizing Calculator with JavaScript
How to Build an Industrial Electric Heater Sizing Calculator with JavaScript Selecting the correct power for an industrial electric heater is not alwa…
How to Build a Web Crawler with Scrapy
How to Build a Web Crawler with Scrapy tags: python, scrapy, webscraping, tutorial How to Build a Web Crawler with Scrapy: A Step-by-Step Guide Imagin…
Python Logging: Best Practices for Production Apps
Python Logging: Best Practices for Production Apps tags: python, logging, devops, tutorial tags: python, logging, devops, tutorial Python Logging: Bes…
Build a Real-Time Chat App with FastAPI and WebSockets
Build a Real-Time Chat App with FastAPI and WebSockets tags: python, fastapi, websocket, tutorial Building a Real-Time Chat App with FastAPI and WebSo…
Build Your First East Africa MCP Server in 30 Minutes
Every tool in the East Africa coordination infrastructure stack started from the same scaffold. Here's exactly how to build and publish one yourself. …