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.
Feature Flag Debt: When Your 500 Conditional Branches Become the Incident
Feature flags are great until they're not. Here's how to audit, remove, and automate cleanup before your 500th conditional branch becomes the root cause of a production incident.
The Art of the Minimal Reproducible Example: A Debugging Superpower
A minimal reproducible example (MRE) is more than just a snippet — it's a tool that isolates the bug, saves time, and gets you faster answers. Here's how to build one that works, with a real-world war story.
The Debugging Mindset: A Systematic Method for Finding Root Causes
A repeatable, hypothesis-driven approach to debugging that works for intermittent failures, performance regressions, and production incidents.
Analyzing a Core Dump: What to Do When Your Process Goes Silent
A core dump is your process's last scream. Here's how to make it talk.
Finding Memory Leaks Step by Step: A Systematic Approach
Memory leaks are the silent killers of long-running services. Here's a repeatable process to hunt them down, from heap dumps to production monitoring.