Your Photos Are Just Spreadsheets in DisguiseQuick confession: for a long time, I thought computer vision was wizardry. Face unlock, self-driving cars, that app that tells you which dog breed your neighbor's puppy is. Magic, right? Then I openedOct 6 路 4 min readvhald.hashnode.dev
A Patent Troll Almost Killed GIFYou've sent a GIF today. Maybe three. But did you ever wonder why PNG exists at all? Short answer: someone sent a legal letter, and a bunch of programmers got annoyed. Back when the web was one big 1IOct 5 路 4 min readvhald.hashnode.dev
Day 1: The Fundamentals Rebuild Arc 馃ПBuilding to top-1% engineer, in public. No gatekeeping, no fake streaks, just the receipts. Why I'm doing this (and why publicly) Hot take: AI isn't coming for engineers. It's coming for commodity en1BSep 24 路 6 min readvhald.hashnode.dev
Unix File Permissions: A Comprehensive Technical OverviewPermissions in Unix are an integral part of the operating system. You can see the details of all files in the current directory by using options -l and -a combinedly with ls command: ls -al Every file has an owner (also referred to as the user), a g...Oct 23, 2025 路 6 min readvhald.hashnode.dev
Software Testing Types: Technical ReferenceEvaluation Framework Every test type answers three questions: What does it test? When is it executed? What does failure indicate? Unit Tests AspectDescription TestsIndividual functions/methods in isolation ScopeSingle atomic unit with no e...Oct 7, 2025 路 3 min readvhald.hashnode.dev
