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.
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Structured investigations for the failure modes engineers meet in real systems.
Expo SDK Upgrade Breaks Build: Debugging Breaking Changes
A practical guide to diagnosing and fixing build failures and runtime errors caused by Expo SDK upgrades. Covers version mismatches, native module conflicts, and configuration drift.
Flutter iOS Build Failed in Xcode – Real Debug Steps
A practical debugging guide for Flutter iOS build failures in Xcode, covering pod issues, Swift version mismatches, code signing errors, and missing architectures.
Android ProGuard Obfuscation Crash Debugging
Diagnose and fix crashes caused by ProGuard obfuscation: missing mappings, reflection, and serialization failures.
React Native Reanimated Crash: Debugging Native Module and Worklet Failures
A structured approach to diagnosing and fixing React Native Reanimated crashes caused by native module mismatches, worklet errors, and metro bundler issues.
iOS Code Signing Error in Xcode: A Debugging Guide
Fix iOS code signing errors in Xcode with specific commands, logs, and root causes. Real-world debugging steps for provisioning profiles, certificates, and entitlements.
Debugging Angular NullInjectorError: No Provider for Injectable
A practical guide to diagnosing and resolving Angular's NullInjectorError when a service or dependency has no provider configured.
Long-form thinking on debugging habits, observability, and the systems around the bug.
How to Debug Legacy Code Without Losing Your Mind
A pragmatic approach to debugging code you didn't write, with techniques for tracing execution, isolating side effects, and making safe edits.
Debugging Feature Flag Rollouts: Tracing the Live-at-5 Incident
A misconfigured feature flag triggered a cascading failure in production. Here's how we traced the root cause and built a better debugging toolkit.
How to Ask for Debugging Help Without Wasting Everyone's Time
Asking for debugging help is a skill. Here's how to provide enough context, show your work, and frame the problem so others can actually help you.
Documenting Bugs: A Postmortem-Driven Approach That Cut Recurrence by 60%
Most bug write-ups are useless. Here's a structured, postmortem-driven approach that reduced bug recurrence by 60% in our team — with templates and a real incident walkthrough.
Debugging as Hypothesis Testing: A Mental Model for Systematic Root Cause Analysis
Most debugging is frantic guessing dressed up as experience. Here's a mental model that treats debugging as a scientific process — form hypotheses, design experiments, and isolate root causes systematically.
How to Read Error Messages: A Debugging Protocol
Most engineers skim error messages and miss the signal. Here's a repeatable protocol for extracting maximum information from stack traces, log lines, and crash dumps — with a real incident walkthrough.