Antonin JanuskaBoulder, 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
2012
Blogging since
Antonin in a black cap and glasses in front of a graffiti brick wall
AntJanus
Deck I

AI & Machine Learning

Workflows, tools, and experiments

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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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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.

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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.

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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.

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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.

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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.

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Deck II

Digital Garden

Engineering, opinions, and deep dives

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Deck III

AI Experiments

Projects, tools, and creative AI work

Work With Me

Need a hand with AI workflows?

I help companies implement AI workflows and accelerate their development teams.

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