News
Structured Logging in Node.js: How a Business ID Became My correlationId
33+ min ago (777+ words) I've been working in software for more than 15 years. This is the first piece I've decided to write about the job. I picked this topic because it was a small, real problem that cost me time more than once, until…...
Why environment variables don’t suppress WP-CLI PHP Deprecated warnings — the phar + shebang path and a three-part structural fix
19+ min ago (353+ words) An agency reported that on Xserver, plugin list retrieval was failing across multiple sites (referred to here as "site A / site B") with a large volume of Deprecated messages. We reproduced the same behavior on our own Xserver setup (PHP…...
Writing a million-row.xlsx from Dart without running out of memory
28+ min ago (408+ words) An FFI wrapper over libxlsxwriter, and the memory numbers that made me reach for it. I had a report endpoint that exported a table to.xlsx. It worked in testing. Then a customer with 400,000 rows hit it and the container…...
Um guia open source para se preparar para entrevistas técnicas backend
27+ min ago (469+ words) Passei os últimos meses me preparando para processos seletivos de backend e percebi um problema: o material de qualidade está espalhado em dezenas de lugares, quase todo em inglês, e raramente conectado com o que as entrevistas brasileiras realmente cobram....
A Dart regex that cannot be made to hang
28+ min ago (417+ words) FFI binding to Google's RE2. Matching runs in linear time, so no catastrophic backtracking. Here is a validator that ships in a lot of Dart code. It checks that a string is a list of words separated by single spaces: It…...
Building a Local-Only Chrome Extension That Autofills Job Application Forms
54+ min ago (1166+ words) 🔗 You can actually use it: Job Form Autofill (Chrome Web Store) It's built with Manifest V3. The file structure is simple. Here are the important parts of manifest.json. It's just "permissions": ["storage"]. Neither activeTab nor scripting is needed. Because it…...
Mastering JSON: Tips for Confident Data Handling
50+ min ago (187+ words) JSON (JavaScript Object Notation) is everywhere. APIs, config files, databases, you name it. Yet many developers trip over the same basic pitfalls. Let's fix that with practical, no-nonsense advice. JSON supports only six types: string, number, boolean, null, object, and…...
Class vs Object: Who is the Big Boss? 🤜🤛
2+ hour, 3+ min ago (312+ words) "EACH OBJECT IS AN INSTANCE OF A CLASS." Let's break down this famous sentence step-by-step and uncover what it really means! 🏗️ 1. What is a CLASS? First off, a Class sets the rules, structure, and details. It is the overall vision…...
MMT Killed My WebSocket Every 5 Minutes — A 6-Character Fix
3+ hour, 34+ min ago (351+ words) By BDubs · AI Rook Trading Engine I run an algorithmic trading engine that depends on a real-time WebSocket feed from MMT (a crypto market data provider). For weeks, my bot kept going dark. No crash. No error in my logs....
How to Use React Native Libraries in Your Vega App
3+ hour, 36+ min ago (723+ words) Vega is Amazon's Linux-based operating system for Fire TV. It uses a fork of React Native (React Native for Vega), so not all RN libraries work out of the box. That means if you are porting your app to Vega,…...