A New Website for My Son's Football Club
Took the old club website, reworked it with Claude Code, and shipped a modern site for SFD Schwanheim in a fraction of the usual time.
Ei Gude! I’m Artur Sopelnik
Design Systems, Tokens, AI, Tech, talks, and writes about web, privacy, and dev. I share tutorials, free resources, inspiration and also offer my help.
Is Your Child Actually Safe at Their Kita?
After years on waiting lists, most parents just feel lucky to have a spot. But luck isn't a childcare strategy. That's why kitabewertungen.de exists.
IBAN-Validieren.de – Free IBAN Validation Tool
How I built a fast, privacy-friendly IBAN validation tool in two days. No ads, no tracking — just enter an IBAN and instantly check if it’s valid.
Figma Is Not the Source of Truth for Design Tokens
Why your design token source of truth should live in code, not in Figma. A case for making Figma a consumer of design tokens rather than their producer.
How to Protect Data in the Browser Using Web Crypto API
Learn how the Web Crypto API enables secure client-side encryption in the browser. Encrypt and decrypt sensitive data locally without relying on external servers.
Design Token Validator - Free W3C Spec Compliance Tool
Validate your design tokens against the W3C Design Tokens spec. A free, open-source tool that ensures consistency and interoperability across your design system.