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@witekbobrowski

Witek Bobrowski

witekbobrowski
Gdańsk, Poland

I'm a Software Engineer building iOS apps and working on open-source projects. Currently pouring most of my free time into ksefuj.to — a free, open-source KSeF invoice validator for Polish businesses. No limits, no paid tiers, no data leaving your browser.

Featured work

  1. witekbobrowski/EPUBKit

    📚 Simple EPUB Parser in Swift

    Swift 300
  2. ksefuj/ksefuj

    🧾 Free, open-source KSeF FA(3) invoice validator. XSD + semantic rules, runs in the browser. CLI & npm package included.

    TypeScript 6

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