Hello 👋 Welcome to my portfolio!

I'm Krzysztof Sordyl

Frontend developer passionate about React.js ecosystem, focused on creating modern web apps.

Based in Bielsko-Biała, Poland 🏔️

2025-04-06blog post

React 19 support for web components

React 19 introduces full support for the web-components and treats them as first class-citizen. The article discusses the previous version pain points by example.

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2025-03-16blog post

Measure package sizes effectively

A small guide to identifying npm packages bundle size. You will learn which tools are providing better insights than Bundlephobia.

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2024-12-30blog post

Storybook Testing Overview

Overview of Storybook testing, the alternative to the traditional JSDOM approach for testing the components. Explores the benefits and drawback of using Storybook tools to test components in many ways.

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2024-12-22dev-bite

Vitest timing breakdown

Breakdown of each step of duration printed out after running the Vitest tests. Including some hints on how to improve each of the metrics

2024-08-03dev-bite

How to Measure ESLint Execution Time

Find out how to check which ESLint rules takes a lot of time to scan the project