AntJanus
0 m · Surface · 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 Januska in a black cap and glasses in front of a graffiti brick wall
Start here

Three to read first

Picked by hand, before the water gets dark.

01
AI

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.

02
AI

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.

200 mTwilight zone80% of animals between 200 and 1,000 m make their own light.

AI & Machine Learning

Workflows, tools, and experiments.

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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

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

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.

1,000 mMidnight zoneBelow here, no sunlight at all. Every light is made by something alive.

Digital Garden

Engineering, opinions, and deep dives.

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AI Experiments

Projects, tools, and creative AI work.

Service

AI Workflow Consulting

Helping companies implement AI tools and processes effectively

  • Claude
  • LLMs
  • Prompt Engineering
Article

AI Glossary

Comprehensive glossary of AI terms and concepts

4,000 mAbyssal zoneNear-freezing, crushing, and still inhabited.
Work with me

Bring a light down with you.

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

Get in touch →