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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

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Five wings, one per kind of work. Each wing keeps its wall color on every page, so you always know where you are.

Workflows, tools, and experiments. The six most recent acquisitions to Wing B.

Antonin Januska · August 14, 2026
Essay; AI, Claude Code, CSS, UI

AJ.2026.0814

Antonin Januska · July 9, 2026
Essay; ai, claude-code, local-first, side-projects

AJ.2026.0709

Antonin Januska · July 9, 2026
Essay; ai, claude-code, skills, architecture, local-first

AJ.2026.0709

Antonin Januska · March 25, 2026
Essay; AI, Claude Code, productivity

AJ.2026.0325

Antonin Januska · February 27, 2026
Short fiction; I, AI series, part 3

AJ.F.2026.0227

Antonin Januska · February 27, 2026
Essay; AI, Claude Code, productivity

AJ.2026.0227

★

Three stops, hand-picked. If you only have ten minutes, start here.

The Future is Bespoke, Personalized Software
Stop 1 · AI Workflows · July 9, 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.
AJ.2026.0709
The Local-First App Skill
Stop 2 · AI Development · July 9, 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.
AJ.2026.0709
I Built an AI-Friendly UI Pattern Library
Stop 3 · AI · August 14, 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.
AJ.2026.0814

Engineering, opinions, and deep dives.

Accession register, newest first
Accession	Work	Acquired
AJ.2026.0223	17 Side Projects I Built With Claude Code in Two Months 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.	February 23, 2026
AJ.2026.0108	Common React Hooks Antipatterns and Gotchas Learn about common React Hooks antipatterns and how to avoid them for better code quality.	January 8, 2026
AJ.2026.0108	The Simplest CSS Grids Learn the most common CSS Grid layouts with copy-pastable examples for two-column layouts, sidebar navigation, and more.	January 8, 2026
AJ.2024.0313	Constants vs Enums in TypeScript TypeScript tips and tricks	March 13, 2024