Antonin Januska

Antonin Januska · Staff Engineer · AntJanus

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

About

Hi, I'm Antonin.

Staff Engineer building AI-backed systems, engineering standards, and the workflows that let teams ship serious software.

20+Years building
600+GitHub stars
2012Blogging since

Based in

Boulder, Colorado

Start here · AI Workflows · Jul 9, 2026

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 & Machine Learning

Workflows, tools, and experiments

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Start here · AI Development

The Local-First App Skill

A reusable blueprint that tells Claude Code how to build a single-user app.

Digital Garden

Engineering, opinions, and deep dives

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Collection · 7 walkthroughs

Demystifying Tools

awk, git worktrees, ffmpeg, find, grep, rsync and tar, made simple.

Projects · 30 and counting

Things I've built

Open source, side projects, AI experiments, and creative work.

AI Experiments · Article

AI Glossary

Comprehensive glossary of AI terms and concepts

Work with me

Bring AI into how your team actually ships.

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

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Projects people actually use

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