NewI built an AI-friendly UI pattern library, and every pattern ships its prompt.New essay: the AI-friendly pattern library.Read the essay
Hi, I'm Antonin. Staff Engineer in Boulder.

I build with AI and write about what I learn.

20+ years of software development, writing about AI workflows, technical leadership, and the craft of building things.

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Antonin Januska in a black cap and glasses in front of a graffiti brick wall
20+years building
600+GitHub stars
2012blogging since
  • My Vim dotfiles ended up in Watch Dogs 2
  • Programmer's Proverbs: 680 โ˜… on GitHub
  • Blogging since 2012
  • 20+ years building software
  • 40 UI patterns, each with its prompt
  • cc-dash: 1,667 tests, 25 MCP tools
  • 17 side projects in two months

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The posts I'd hand a new reader.

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01
AI Workflows

The Future is Bespoke, Personalized Software

Every app I use is about 70% right. The last 30% never ships because the addressable market for it is one person -- me. So I built seven apps that are 100% right for one person, and I think that whole category of software is about to get eaten.

02
AI Development

The Local-First App Skill

A reusable blueprint that tells Claude Code how to build a single-user app -- Next.js, node:sqlite, a pure logic core -- so every app I build comes out the same shape.

03
AI

I Built an AI-Friendly UI Pattern Library

A UI pattern library where every pattern ships the prompt that rebuilds it, so a coding agent can put it in your codebase instead of you copying CSS.

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My dotfiles shipped in a AAA game.

My personal Vim/Neovim configuration ended up featured in the video game Watch Dogs 2.

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680 stars for a list of proverbs.

Programmer's Proverbs went viral, with hundreds of stars and contributions from the community.

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40 patterns, 0 dependencies.

Interface patterns lifted out of projects I actually shipped, each with the prompt that rebuilds it.

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AntoninStaff Engineer, writing since 2012

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