WebIdiot.Online
93% of Frontend Developers Can’t Explain React Profiler vs Lighthouse — Here’s What Actually Impresses Interviewers
Most frontend candidates can list tools…But very few can explain when and why to use them.And that’s exactly where great developers stand out.If you’re preparing for frontend interviews — or want to level up your performance debugging skills — this breakdown will help you articulate the right tool for the right scenario. 1. React Profiler — When Your Components Re-Render Too OftenWhen to mention in an interview:“I use the React Profiler when components are re-rendering unnecessarily. It hel
Volatility: The volatile memory forensic extraction framework
<a href="https://news.ycombinator.com/item?id=47110781">Comments</a>
How I Show Car Photos Without Storing a Single Image
When I started building AutoFeedback — a European car review platform — I ran into an obvious problem early: I needed photos of thousands of car models, but I had no budget for a car photo API, no CDN costs to absorb, and no time to manually source and host images.The solution turned out to be elegant, free, and hiding in plain sight. The ProblemMost car data APIs are either expensive, require licensing agreements, or only cover popular markets. I have models like the Renault Clio, SEAT Ibi
Attention Media ≠Social Networks
<a href="https://news.ycombinator.com/item?id=47110515">Comments</a>
WebRTC: A Beginner's Guide to Real-Time Communication
Have you ever wondered how video calling apps like Google Meet, Zoom, or Discord work? Or how multiplayer games achieve real-time communication between players? The answer lies in a powerful technology called WebRTC (Web Real-Time Communication).In this guide, we'll take you from knowing nothing about WebRTC to having enough knowledge to build your own real-time communication projects. Let's dive in! What is WebRTC?WebRTC stands for Web Real-Time Communication. It's an open-source technolog
Rashed Devx Website
<p>Rasheddevx Portfolio Website </p><p>Visit website: <a href="https://rasheddevx.netlify.app/" rel="noopener noreferrer">https://rasheddevx.netlify.app/</a></p>
How I Engineered a Custom Chromium Adblocker from Scratch (Manifest V3)
As a Linux-first developer, my entire workflow is built around granular control. I rely on Neovim and the terminal to keep my environment lean and completely free of bloatware. Recently, I decided to apply that exact same philosophy to my web browser.Instead of just downloading a black-box extension to block ads, I wanted to understand the mechanics underneath. My engineering philosophy is simple: Build → Break → Optimize. So, I built and shipped v1.0 of my own Chromium-based adblocker. Here is
Interpreter vs JIT Compilation in JavaScript Engines
Interpreter vs JIT Compilation in JavaScript Engines: A Deep DiveJavaScript engines play a crucial role in executing JavaScript code in web browsers and server environments. With the evolution of JavaScript as a sophisticated programming language, understanding the underlying mechanisms that drive its execution has become essential for developers. This article provides an in-depth exploration of the two predominant execution strategies used in modern JavaScript engines: interpretation and
Building a Production Audio Recorder with Expo and React Native
Mobile audio recording is a core feature in many modern apps, powering everything from voice memos to podcast tools and user-generated content platforms. If you’re developing a mobile app with React Native, the Expo framework provides a robust set of APIs—especially the expo-av module—that simplifies cross-platform audio capture. But moving from a basic demo to a reliable, production-ready audio recorder means addressing a host of real-world challenges: managing permissions, supporting backgroun
Script Analysis: “Nine Days” — Scene-By-Scene Breakdown
Here is my take on this exercise from a previous series of posts — How To Read A Screenplay:Continue reading on Go Into The Story »
Page One: “The Song of Names” (2019)
Screenplay by Jeffrey Caine, based on the novel by Norman LebrechtContinue reading on Go Into The Story »
I Built a Framework That’s 17x Faster Than Laravel : Meet Kuppa.js
I Built a Framework That’s 17x Faster Than Laravel in One Weekend: Meet Kuppa.jsBuilding a web application often feels like a trade-off. You either go with a "batteries-included" framework like Laravel but sacrifice raw performance, or you pick a minimalist tool like Express.js but spend hours wiring up folders, auth, and database connections.This past weekend, I decided to stop choosing. I built Kuppa.js, an opinionated, high-performance framework built on top of Express.js, specifically
Building SwapShield: A Gasless & MEV-Protected Trading Analyzer using the Uniswap API
Decentralized finance (DeFi) trading is powerful, but it's not without its rough edges. Between unpredictable gas spikes, front-running bots (MEV), and failed transactions due to tight slippage, even experienced traders can get frustrated. What if traders knew exactly what route was optimal before they even signed a transaction? To solve this, we built SwapShield—a premium, open-source best-execution analyzer built entirely on top of the powerful Uniswap Trading API. The Challenge: Navigati
I reviewed Philips' affordable Fidelio stereo speakers that look 'too good to be true' on the spec sheet — and they nearly pull it off
An active wireless speaker system with specification beyond the asking price, and an actually useful app — what’s the catch? <img src='https://cdn.mos.cms.futurecdn.net/UufmNif74mwWy5eK7ziWHV-1280-80.jpg' />
How to watch Wales vs Scotland: Free Streams, TV Channels & Preview for Six Nations 2026 clash
All the ways to watch Wales vs Scotland live streams online – including for FREE – in the 2026 Six Nations Round 3 clash at the Principality Stadium. <img src='https://cdn.mos.cms.futurecdn.net/VtTdFCTXeugQbZaZBJo8qg-1280-80.jpg' />
Show HN: Clawbernetes – Replace kubectl with conversation (Rust)
Clawbernetes turns OpenClaw into an AI-native infrastructure manager. Instead of YAML, Helm charts, and kubectl — you have a conversation."Deploy Llama 70B on the node with the most VRAM" → agent selects the best node, pulls the image, starts the container with GPU passthrough, sets up health monitoring."Why is inference slow?" → checks GPU temps, VRAM, CPU load. "GPU 0 at 89°C — thermal throttling. Want me to reduce batch size?"23 crates, 74K lines of Rust, 1,866 t
Show HN: A native macOS client for Hacker News, built with SwiftUI
Hey HN! I built a native macOS desktop client for Hacker News and I'm open-sourcing it under the MIT license.GitHub: https://github.com/IronsideXXVI/Hacker-NewsDownload (signed & notarized DMG, macOS 14.0+): https://github.com/IronsideXXVI/Hacker-News/releasesScreenshots: https://github.com/IronsideXXVI/Hacker-News#screenshotsI spend a lot of time reading HN — I wanted something that felt like a proper Mac app: a sidebar f
Show HN: TypstMe – Build ATS-proof resumes using Typst and WASM
Hi HN,I built TypstMe because I was frustrated with the current state of resume builders. Most of them are either overpriced monthly subscriptions or tools like Canva that produce absolute-positioned PDFs which ATS (Applicant Tracking Systems) often fail to parse correctly.The Tech:I wanted the precision of Typst but with a GUI accessible to everyone. The core engine uses Typst compiled to WebAssembly (WASM), allowing for instant, pixel-perfect previews directly in the browser.Key Features:1. A
Show HN: CheckAPI – open-source API monitoring built with FastAPI and Next.js
Built CheckAPI - an open source API monitoring tool for developers.Tech stack:- FastAPI backend with Celery workers- Next.js 14 frontend- Redis for job queue- Multi-channel alerts (Email, Slack, Telegram, Discord, Webhook)Free tier: 3 monitorsPaid: $5-15/moGitHub: https://github.com/JEONSEWON/api-health-monitorBuilt in 6 weeks with AI assistance (OpenClaw). Made it open source so others can learn from it or self-host.Feedback welcome, especially on the tech architec
Freelancing is more than a pitch. It’s a business.
I always knew I wanted to be a freelance journalist. While my classmates were looking at internships and dreaming of large newsrooms in cities across the country, I was poring over magazines, reading ...<img src='https://images.unsplash.com/photo-1767880239595-f4ea13b5c78c?crop=entropy&cs=tinysrgb&fit=max&fm=jpg&ixid=M3wyMzg1fDB8MXxzZWFyY2h8N3x8RnJlZWxhbmNlfGVufDB8fDJ8fDE3NjkzOTQ0NDl8MA&ixlib=rb-4.1.0&q=80&w=1080' />
