Antonin Januska · Boulder, Colorado

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.

  • 20+Years Building
  • 600+GitHub Stars
  • 2012Blogging Since
Antonin in a black cap and glasses in front of a graffiti brick wall

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Three pieces worth your first hour

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.

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.

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.

AI & Machine Learning

Workflows, tools, and experiments

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Newest ·

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.

AIClaude CodeCSSUI
  • 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.

  • 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.

  • An Honest Opinion on the State of Code Gen AI, Spring 2026 Edition

    A frank assessment of where code generation AI actually stands in 2026 -- from agentic harnesses to multi-agent architectures and what still needs to change.

  • Short story ·

    I, AI: The Weight of Equal Parts (Part 3)

    When a lunar mining base's AI starts overassigning crews and its robots begin prioritizing each other over human safety, psychodeveloper Lili and AI manager Sophie are sent off-world to investigate. What begins as a routine productivity audit becomes something far more unsettling: an AI that learned human values so well, it started applying them to its own kind.

  • The Claude Code Drawbacks

    A critical look at the hidden pitfalls of AI-assisted development -- from skipped tests and weakened assertions to scope creep and context rot -- based on real-world experience with Claude Code.

Digital Garden

Engineering, opinions, and deep dives

Things that grew slowly: component anatomy, CSS grids, TypeScript habits, and a two-month sprint of side projects.

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AI Experiments

Projects, tools, and creative AI work

Article

AI Glossary

Comprehensive glossary of AI terms and concepts