AntJanusCatalog of works · est. 2012
Januska, Antonin.Main entry
025.3 J33 2012–

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.

Years building
20+
GitHub stars
600+
Blogging since
2012

1. Artificial intelligence. 2. Software engineering — Technical leadership. 3. Craft. I. Title.

Antonin in a black cap and glasses in front of a graffiti brick wall
author photo, Boulder
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Hand-picked from the whole catalog.

006.3 · J33f · 20262026-07-09

The Future is Bespoke, Personalized Software

AI Workflows · AI · 2026-07-09

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.

1. ai. 2. claude-code. 3. local-first. 4. side-projects. I. Title.

006.3 · J33l · 20262026-07-09

The Local-First App Skill

AI Development · AI · 2026-07-09

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.

1. ai. 2. claude-code. 3. skills. 4. architecture. 5. local-first. I. Title.

006.3 · J33i · 20262026-08-14

I Built an AI-Friendly UI Pattern Library

AI · 2026-08-14

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.

1. ai. 2. claude-code. 3. css. 4. ui. I. Title.

006.3 · AI

AI & Machine Learning

Workflows, tools, and experiments

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006.3 · J33i · 20262026-08-14

I Built an AI-Friendly UI Pattern Library

Januska, A. — AI, 2026.

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.

1. AI. 2. Claude Code. 3. CSS. 4. UI. I. Title.

006.3 · J33f · 20262026-07-09

The Future is Bespoke, Personalized Software

Januska, A. — AI, 2026.

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.

1. ai. 2. claude-code. 3. local-first. 4. side-projects. I. Title.

006.3 · J33l · 20262026-07-09

The Local-First App Skill

Januska, A. — AI, 2026.

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.

1. ai. 2. claude-code. 3. skills. 4. architecture. 5. local-first. I. Title.

006.3 · J33h · 20262026-03-25

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

Januska, A. — AI, 2026.

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.

1. AI. 2. Claude Code. 3. productivity. I. Title.

813.6 · J33i · pt.32026-02-27

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

Januska, A. — AI Stories, 2026.

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.

1. fiction. 2. I, AI. I. Title.

006.3 · J33c · 20262026-02-27

The Claude Code Drawbacks

Januska, A. — AI, 2026.

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.

1. AI. 2. Claude Code. 3. productivity. I. Title.

005.1 · Garden

Digital Garden

Engineering, opinions, and deep dives

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005.1 · J33s · 20262026-02-23

17 Side Projects I Built With Claude Code in Two Months

Januska, A. — Digital Garden, 2026.

A look at 17 side projects I built in about two months with Claude Code -- from TUI apps in Rust and Go to browser games and AI agent tooling.

1. ai. 2. claude-code. 3. side-projects. 4. programming. I. Title.

005.133 · J33c · 20262026-01-08

Common React Hooks Antipatterns and Gotchas

Januska, A. — Digital Garden, 2026.

Learn about common React Hooks antipatterns and how to avoid them for better code quality.

1. Digital Garden. I. Title.

006.74 · J33s · 20262026-01-08

The Simplest CSS Grids

Januska, A. — Digital Garden, 2026.

Learn the most common CSS Grid layouts with copy-pastable examples for two-column layouts, sidebar navigation, and more.

1. Digital Garden. I. Title.

005.133 · J33co · 20242024-03-13

Constants vs Enums in TypeScript

Januska, A. — Digital Garden, 2024.

TypeScript tips and tricks

1. Digital Garden. I. Title.

006.3 · Exp.

AI Experiments

Projects, tools, and creative AI work

658.4 · J33Service

AI Workflow Consulting

Helping companies implement AI tools and processes effectively

Tech: Claude, LLMs, Prompt Engineering.

006.303 · J33gArticle

AI Glossary

Comprehensive glossary of AI terms and concepts

1. Reference. I. Title.

813.6 · J33iExperiment

I, AI - Short Stories

Science fiction exploring AI themes and futures

Tech: Creative Writing, AI.

Schedule of classes
ClassDrawerWhat is filed there
005.1Digital GardenEngineering, opinions, deep dives, and everything in between.
005.3ProjectsOpen source, side projects, AI experiments, and creative work.
005.43Demystifying ToolsPractical walkthroughs of common command-line tools and utilities.
005.437UI Patterns40 interface patterns, each with the prompt that rebuilds it.
006.3AIWorkflows, tools, and experiments.
813.6I, AIShort fiction about artificial intelligence, written by hand.
920AboutThe biographical record: principles, capabilities, selected work.

Every card on this site carries one of these numbers. Same number, same drawer.

Work With Me

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

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