Enforcing a concrete performance budget for Expo EAS builds and OTA updates
The situation Say you are a mobile engineer on a small React‑Native team that uses Expo Application Services (EAS) for CI‑driven builds and over‑the…
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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…
Exponential Backoff Isn't Enough: The Retry Storm Hiding in Your Recovery Path
The problem A dependency blips for 400ms — a deploy, a GC pause, a brief network partition, doesn't matter which. Every client with an in-flight req…
CrUX Now Counts SPA Soft Navigations. 5 Things I'd Check Before Search Console Switches
For years, the Chrome UX Report (CrUX) has had a blind spot. If your site is a single-page app, Chrome only recorded the first "hard" page load. Eve…
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…
Rendering a 2.9-million-triangle human body in the browser without freezing the page
I built LearnAnatomy3D ( learnanatomy3d.com ), a free 3D human anatomy atlas that runs in the browser: ~2,900 clickable structures across 11 body sy…
How I Hunted Down 23 N+1 Queries in a Rails App With Claude Code
TL;DR Our Rails app's p95 response time had crept from 280 ms to 1.4 s over a year, and nobody could say why. I paired with Claude Code for four day…
How I Kept a 4K Media Client Under 1 MB (When Every Player App Weighs 100 MB+)
I build small software. My latest project, RKMovies, is a 4K-capable media client for Android and Windows that ships as a 0.91 MB APK. Not 91 MB — 0…
How big is Hello World in C#? From 76 MB down to 0.73 MB
How big is the smallest C# program? It depends almost entirely on how you publish it . Same one line of code, five different dotnet publish commands…
Fixing a bad INP in React? Find the slow phase before you optimize anything
Interaction to Next Paint (INP) has been a Core Web Vital since March 2024, when it replaced First Input Delay. It's also the one teams find hardest…
Defending the 16ms Frame: A Performance Budget for React Native TurboModules
I was the first engineering hire at Synapsis Medical Technologies, where I owned the architecture for a HealthTech AI platform from day zero. We wer…
Building a No-Framework Solitaire Portal: What I Learned Shipping 15 Card Games Without React
The constraint that shaped everything When I started building a solitaire portal, I gave myself one rule: if a feature does not need a server, it do…
DSP Losing Auctions on Timeout While Infrastructure Costs Grow: What to Measure and How to Check Who Can Fix It
Originally published at ambrain.org . Timeouts on two exchange connections and an infrastructure bill that grows faster than revenue can both be mea…
The Road to VEKTOR v2.0: How we Refined our Research Methods for Speed
What 1.9.9 fixed, how we tested, and what we are building next. 14 min read · vektormemory.com The pace is changing The field keeps renaming itself:…
Your Next.js App Feels Slow, but Lighthouse Says It’s Fast. Why?
You run Lighthouse. Performance: 95. Everything looks great. Then you actually use the application. You click a button. Wait. Open a dashboard. Wait…
How to Test Slow APIs and Network Latency in Frontend Applications
I once pushed a frontend feature to production that I thought was completely bulletproof. On my MacBook connected to high-speed fiber Wi-Fi, every A…
I Built a Pure-Zsh Prompt Engine That Renders in 0.6ms (Without Rust or C++)
For years, developers optimizing their shell prompts have faced a binary dilemma: Starship : Beautiful, portable, and feature-packed, but written in…
Kaniko's Performance Gap Narrows: Outdated 2018 Benchmarks Mislead, Recent Updates Close BuildKit Speed Divide
Introduction: Reassessing the Kaniko-BuildKit Performance Gap A 2018 benchmark comparison labeled kaniko as 15 times slower than BuildKit , a result…
12 performance testing myths that lead to production failures
12 performance testing myths that lead to production failures Most production performance failures don't start with a bad tool. They start with a ba…
No measurement, no optimization
No measurement, no optimization. There's a common saying in programming: "Don't optimize what you haven't measured yet." You can only truly apprecia…
The Lost Art of Mechanical Sympathy: Why Software Forgot the Machine
A few weeks ago, I watched a software engineer with seven years of experience spend forty-five minutes trying to understand why his local developmen…
INP and Partytown: give the main thread back to your users
Introduction You click on a button. Nothing happens. You click again. Still nothing. Then the menu opens... and closes right away. We have all lived…
Website Redesign UK - When and How in 2026
A website redesign can transform how your business performs online, or it can quietly destroy years of hard-won search rankings overnight. The diffe…
I Benchmarked My Vanilla JS CBT Detector Against 5 NLP Libraries — Here Is When Rule-Based Wins
The Question I built a cognitive distortion detector in 200 lines of vanilla JavaScript. No ML. No NLP library. No API. No backend. Pattern matching…
Your GDScript arrays are slower than you think — I built a CLI that detects the pitfalls and benchmarks them
"Why is my enemy loop stuttering? I'm not even doing anything heavy here." Every Godot tutorial tells you to just use arrays. Nobody tells you that…
Architecture of WarchOS: A Custom Arch-Based Setup with Hyprland, a Dynamic CPU Scheduling Daemon, and an Automated Wine Prefix Manager
WarchOS is a custom Arch Linux environment aimed at maximizing system performance, optimizing Wayland workflows, and handling Windows executables na…
What to Expect from a Web Development Company in 2026
Collaborating with a professional web development company represents a significant step forward for any business. It transitions your digital presen…
I built a sub-4ms JIT CSS framework with native Glassmorphism and built-in LLM training files
I built a sub-4ms JIT CSS framework with native Glassmorphism and built-in LLM training files If you've been doing frontend development lately, you…
ChatGPT vs Claude vs Gemini for Small Business: Why Infrastructure Differences Matter More Than Model Size
Verdict: For most small businesses, the differences in underlying infrastructure between AI providers like OpenAI (ChatGPT), Anthropic (Claude), and…
Postgres for everything hits a wall the moment dashboards get concurrent
I used to say, "Just use Postgres." After that, our dashboards became concurrent, and the read replica we quickly added to offload some of the press…