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Latest Articles
React Mastery Series – Day 15: React Performance Optimization – Understanding useCallback and React.memo
5+ min ago (239+ words) Welcome back to the React Mastery Series! In the previous article, we explored useRef and useMemo Hooks and learned how React helps developers optimize applications by: Today, we will explore two important performance optimization concepts: These concepts become extremely important…...
var, let, const — and why JavaScript changed its mind
5+ min ago (682+ words) When I started learning JavaScript, I kept seeing the same advice: use let and const, don't use var. Usually it came as a rule, not a reason. And a rule you don't understand is a rule you forget — so I…...
Forget The Build Step: A Browser-Native Editor For JSX + CSS
13+ min ago (329+ words) Frontend tooling is incredibly capable. It is also often front-loaded. For many UI ideas, the first thing you do is not write code. You install, configure, and wait. The creative loop starts late. @knighted/develop is built for a different…...
Applying GCP, AI & Modern Web to Build a Summarized News Experience
5+ min ago (195+ words) While preparing for the Google Cloud Architect certification, I wanted to deepen my understanding by building something practical using the GCP services I was learning. That led me to start a news summarization application, this is something I've been developing…...
This is what building a Two-Node Lightning Network From Scratch looked like in one week.
10+ min ago (1443+ words) There's a version of learning Bitcoin where you read the whitepaper, nod along, and move on. Then there's the version where you're staring at a terminal at 11pm wondering why two nodes refuse to talk to each other then you actually…...
Commitea now has challenges verified against your real GitHub
16+ min ago (200+ words) A while back I shared Commitea, my project to teach Git and GitHub in Spanish, with a repo of docs and an interactive visualizer. Since then I kept adding things — search, feedback widget, dark mode, a changelog page. But there…...
Building a Secure MCP Server for AI-Assisted VPS Operations Without Giving the AI a Shell
6+ min ago (1381+ words) Over the last few months, I have been thinking about a simple but uncomfortable question: If AI tools are becoming part of our engineering workflow, how much access should we actually give them? It is tempting to connect an AI…...
Why RAG Docs Chatbots Answer Wrong: Embeddings, Chunking, and Context Fixes
5+ min ago (381+ words) A RAG ask-your-docs chatbot stops hallucinating wrong answers when retrieval is treated as an evaluated evidence pipeline, not a clever prompt. The practical fix is source-only generation with retrieval evaluation. Measure retrieval recall before judging prose quality, rerank the candidates…...
What I'm Building: A Tool to Help Recruiters Rate Interviews More Consistently
18+ min ago (222+ words) I'm starting a full-stack project aimed at a problem I kept thinking about: when a recruiter interviews hundreds of students in a day, how fair can the ratings really stay? Think about placement season. One recruiter might interview 50-100+ students back…...
How I Built a React App Using Only My Android Phone (No Laptop!)
25+ min ago (133+ words) Everyone assumes you need a laptop to code. I don't have one. I built a full React app using only my Android phone — and deployed it live on the internet. Here's exactly how I did it. I'm Arshad Ansari, an…...