Buglyst Blog
Learn to debug under pressure.
Playbooks for fast pattern recognition, guides for the full investigation, and articles for the engineering judgment around the edges.
17 playbooks · 509 guides · 95 articles · 12 linked practice labs ·skip to practice
Fast pattern recognition for the production failures engineers see most often.
1 playbook in Frontend & Web
Structured investigations for the failure modes engineers meet in real systems.
Tailwind CSS Class Not Being Applied? Debug the Pipeline
A systematic walkthrough for when a Tailwind utility class is present in your HTML but the styles don't render in the browser.
Tailwind CSS Purge Removing Used Classes: How to Debug
Debug why Tailwind's purge feature removes classes you are actually using in your templates.
Webpack Code Splitting: Lazy-Loaded Chunk Fails to Load
A guide to debugging webpack dynamic imports where the split chunk never loads, causing blank screens or missing UI sections.
Webpack Module Federation Remote Not Loading: Debugging Guide
A practical debugging guide for when a Webpack 5 Module Federation remote fails to load, including specific commands, config checks, and real-world root causes.
Vite Path Alias Not Resolving: The Complete Debugging Guide
A practical debugging guide for when Vite's path aliases (like `@/components`) fail to resolve, covering configuration pitfalls, IDE integration, and build-time errors.
Webpack Source Maps Not Working – Debugging Guide
A practical guide to debugging when Webpack source maps are missing, broken, or point to wrong files in development and production.
Long-form thinking on debugging habits, observability, and the systems around the bug.
Why Your 60fps Animation Stutters: A Deep Dive Into the Browser Event Loop
The event loop isn't just about callbacks. It's about when and in what order the browser processes tasks, microtasks, and rendering. Here's what actually happens between frames.
Remote Debugging Mobile Devices at Scale: What Works and What Doesn't
Setting up remote debugging for iOS and Android devices involves more than just enabling Developer Mode. Here's what I've learned from debugging over 500 devices in production.