Lbarylak

Writing

Mastery in motion. Unfiltered thoughts on frontend architecture, performance, and scaling modern web applications straight from the trenches.

LatestMar 17, 20263 min read

AI Writes the Code. You Still Own the Decision.

Copilot and Claude will generate 200 lines of code in three seconds. That's not the problem. The problem is when you accept it without reading it.

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Mar 12, 20262 min read

I Run 5 Days a Week for Myself (The Code Just Benefits)

I don't run to become a better programmer. I run to build physical and mental resilience. Writing better architecture is just the natural side effect.

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Mar 5, 20262 min read

The Silent Variable in Software Architecture: Your Mind

I've been meditating since I was 8 years old. Here is why absolute focus and mental clarity are the most critical, yet untaught, skills for a Principal Engineer.

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Feb 15, 20262 min read

The Illusion of State: Why Your React App is Choking on Context

As frontend engineers climb the ladder, they often confuse 'architecture' with 'complexity'. Let's talk about how over-managing state is killing your render cycle.

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Jan 28, 20262 min read

Micro-Frontends: The Hype, The Lie, and The Reality

Everyone wants to split their monolith. Very few teams actually have the organizational structure to survive the complexity of Module Federation.

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Jan 10, 20265 min read

No Estimates. No Retros. No Problem.

I spent nearly two years on a project with a team of pure top-level engineers. Sprints existed, but only to set priorities and plan deployments. No estimates, no retrospectives. Everyone just delivered. It was the most productive period of my career, and it permanently changed how I think about process.

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Dec 10, 20252 min read

The Silent Speed Killer: Hydration and the VDOM

Fighting hydration mismatches and understanding the Virtual DOM threshold is what actually separates good UIs from incredible ones.

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Nov 20, 20252 min read

Stop Rewriting Everything: The True Cost of Re-platforming

Every new developer wants to delete the legacy Vue app and rewrite it in React. Here is why you must learn to refactor in place instead of starting over.

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Sep 5, 20252 min read

Your E2E Tests Are Flaky Because You Don't Understand Async

Cypress and Playwright are incredible tools. But if your test suite randomly fails on CI every Tuesday, the tool isn't the problem. You are.

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Jul 12, 20252 min read

Why I Stopped Using Tailwind Utilities for Design Systems

Tailwind CSS is a revolutionary tool for rapid prototyping. But when building a massive enterprise UI library, scattered primitive classes become an unmanageable mess.

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