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.
Next.js Image Component Fails to Optimize Images
Diagnose and fix root causes when Next.js <Image> skips optimization. Covers config, domains, loader issues, and CDN missteps beyond the basics.
React List Rendering: Diagnosing and Fixing Key Prop Warnings
How to debug and resolve React's list key prop warnings, including subtle runtime issues beyond console noise. Concrete steps, root causes, and real-world incident.
Next.js Static Site Generation Build Failures: Diagnosing getStaticProps and getStaticPaths Issues
Concrete diagnosis and fixes for Next.js static generation (SSG) build failures, covering getStaticProps, getStaticPaths, missing data, and non-obvious traps.
Diagnosing React Router Infinite Redirect Loops
How to fix and prevent infinite redirect loops in React Router—pinpoint the logic errors, misconfigurations, and unexpected auth flows that cause them.
Vue Router Navigation Guard Blocking Route Transitions
Diagnose and resolve Vue Router navigation guards unexpectedly blocking route changes. Covers subtle mistakes and issues beyond standard docs.
Vue Watcher Causing Infinite Render Loop
Vue watch handlers sometimes trigger infinite update cycles. This guide detangles the real causes, not just the basics, and shows how to fix them.
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.