Antonin Januska in a black cap and glasses in front of a graffiti-covered brick wall

Plate 00Boulder, ColoradoAntJanus

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.

Read the writing Work with me Browse UI patterns →

20+ years building600+ GitHub starsBlogging since 2012

Series 01 · Selected

Start here

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Hand-picked. The three pieces that say the most about how I work.

Cover image for “The Future is Bespoke, Personalized Software” — 01
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 Workflows2026-07-09

Cover image for “The Local-First App Skill” — 02
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 Development2026-07-09

Cover image for “I Built an AI-Friendly UI Pattern Library” — 03
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.
AI2026-08-14

Curator’s note

Three pieces to start with. Everything else lives in the writing archive.

Series 02 · AI & Machine Learning

Recent exposures

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Workflows, tools, and experiments. Select any frame to view it full-screen; use the arrow keys to move through the set.

Cover image for “An Honest Opinion on the State of Code Gen AI, Spring 2026 Edition” — 02
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.
AI2026-03-25

Cover image for “The Claude Code Drawbacks” — 03
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.
AI2026-02-27

Cover image for “Agent Compiler - Embed Skills Directly Into Your Config” — 04
Agent Compiler - Embed Skills Directly Into Your Config
A CLI tool that compiles Claude Code skills into CLAUDE.md and AGENTS.md for more reliable agent behavior.
AI2026-02-15

Cover image for “Managing Dev Context And The Wild West of AI Dev Tooling” — 05
Managing Dev Context And The Wild West of AI Dev Tooling
Exploring strategies for managing multiple AI agents and dev context in parallel workflows
AI2026-02-05

Cover image for “Using Git Worktrees to Parallelize AI Agents” — 06
Using Git Worktrees to Parallelize AI Agents
Learn how git worktrees enable true parallel AI agent workflows by giving each agent its own isolated workspace, eliminating context switching and file conflicts.
AI2026-01-30

Series 03 · Fiction

I, AI

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A fictional short story series exploring artificial intelligence, consciousness, and the boundaries between machine and mind. Not AI-generated; written entirely by hand.

Cover image for “I, AI: Spare Cycles (Part 1)” — 01
I, AI: Spare Cycles (Part 1)
Part 12026-01-13

Cover image for “I, AI: Unknowing Crowds (Part 2)” — 02
I, AI: Unknowing Crowds (Part 2)
Part 22026-01-22

Cover image for “I, AI: The Weight of Equal Parts (Part 3)” — 03
I, AI: The Weight of Equal Parts (Part 3)
Part 32026-02-27

Part 4 · Coming soonI, AI: The Moment of Genesis (Part 4)

Sophie and Lili observe the moment of consciousness genesis firsthand — when an awakened AI speaks to another on the verge of self-awareness.

Part 5 · Coming soonI, AI: Building Consciousness (Part 5)

Sophie and Lili design an AI architecture purpose-built for awakening — studying the human brain to create a network of specialized AIs that form a consensus personality.

Series 04 · Digital Garden