Deep Dives
How the tools actually work under the hood. Understanding internals makes debugging faster and architectural decisions more confident.
State Management Internals
How state management libraries actually work: useSyncExternalStore, Zustand's subscription model, and why Context causes re-renders.
State Architecture in Practice
Progressive complexity walkthrough - the same feature implemented at 5 increasing scales, from useState to Zustand.
State Machines
When boolean flags aren't enough. Modeling complex UI flows with explicit states and transitions.
GraphQL Caching
How Apollo and other clients normalize and cache GraphQL responses, and what breaks when the cache gets stale.
useEffect & Async Cleanup
Why async effects need cleanup, how to cancel requests, and the patterns that prevent stale closures and race conditions.