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Fifty imported Under The Hood essays on frontend, browser behavior, JavaScript internals, and AI engineering. More coming through the pipeline.

AI-Driven CSS Refactoring: When Generated Styles Surprise You

July 22, 2026

Debugging AI Model Integration Latency in Frontend: Frontend Architecture and UX Tradeoffs

July 21, 2026

React ReactFiber

How React Fiber Handles High Priority Updates: Insights and Debugging Techniques

July 20, 2026

React Architecture Beyond Components: Understanding Context, Hooks, and Render Phases

July 17, 2026

React Performance

Debugging React Context Performance Issues: When and Why Components Re-render

July 16, 2026

HTTP QUERY is here: what changes for frontend data fetching?

July 15, 2026

newsletter substack

New Newsletter Alert: Under The Hood Has a New Home

July 14, 2026

Optimizing React Suspense: How Concurrent Mode Handles Data Fetching and Rendering

July 13, 2026

React Server Components

React Server Components: Under the Hood of Streaming and Client Boundaries

July 11, 2026

Accessibility DOM

The Accessibility Tree: What Your DOM Doesn’t Tell You About Screen Readers

July 11, 2026

What will-change Actually Does to Your GPU Memory

July 8, 2026

Hydration Isn't Magic — Here's the Exact Sequence That Breaks It

July 6, 2026