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 Languages & Runtime
Structured investigations for the failure modes engineers meet in real systems.
Jupyter Kernel Keeps Dying: Debugging and Fixes Guide
A practical guide to diagnosing why your Jupyter kernel repeatedly dies and restarts, with specific commands and root causes.
Debugging SWC Transform Errors: Syntax Errors in Rust-Based JS/TS Transforms
A practical guide to diagnosing and fixing syntax errors when using SWC for JavaScript/TypeScript transforms. Covers common causes like mismatched decorators, unsupported syntax, and misconfigured .swcrc.
Thread Pool Starvation Deadlock: How to Detect, Diagnose, and Fix It
Learn how to identify and resolve thread pool starvation deadlocks where waiting tasks block worker threads, causing cascading failures.
GC Thrashing Causes High CPU — How to Diagnose and Stop It
A practical guide to identifying and resolving garbage collection thrashing that spikes CPU usage in JVM and .NET applications.
Long-form thinking on debugging habits, observability, and the systems around the bug.