Kacper Szarkiewicz

Frontend Engineer

let's build together

I build dApps. I specialise in Frontend and UX in Web3.

Design engineering is my hobby.

The Standard for DeFi Numeric Inputs.

Something native UIs get right that most web tooltips don't.

Interactive CSS-only glow effect cards that track the pointer position using custom properties.

An iMessage composer built with group-focus-within and group-has - tray collapse, icon crossfade, and conditional pickers, all CSS-only.

How browser stacking context really works - from z-index traps to the top layer.

Stay updated with my latest articles and projects. No spam, no nonsense.

Articles I find interesting

You can see more of my work on X, more of my code on GitHub, and my videos on YouTube.