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.
0 playbooks in Debugging Craft
No playbooks found
Nothing matches “”. Try a broader term.
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.
Assert Statements: Where They Help and Where They Hurt
Assert statements are a double-edged sword. Used correctly, they catch bugs early and document invariants. Used carelessly, they can mask failures and create security holes. Here's how to wield them effectively.
Debuggers vs Console.log: Why I Stopped Using Print Statements for Debugging
Print statements are the duct tape of debugging. They work for trivial issues, but for race conditions, async flows, or deep call stacks, a debugger saves hours. Here's what I learned after years of using both.
Treating Bugs as Hypotheses: How the Scientific Method Fixes Debugging
Frustrated by flailing through logs? The scientific method turns debugging into a reproducible process. Here's how to formulate hypotheses, design experiments, and isolate root causes with confidence.
How to Debug a Regression: A Practical Walkthrough
A practical, step-by-step guide to finding and fixing regression bugs, with real-world examples and concrete commands you can run today.
The Cost of Not Reproducing Bugs: Why Local Debugging Saves Hours
Skipping local reproduction leads to wasted hours, broken deploys, and frustrated teams. Here's why it's non-negotiable and how to do it right.
Debugging an Unfamiliar Codebase: A Systematic Approach
A repeatable process for debugging code you didn't write — with specific techniques, tooling choices, and a war story from a production outage at 2 AM.