Antonin Januska
I build with AI and write about what I learn.
The best code is no code at all.
Antonin Januska, Staff Engineer, Boulder, Colorado.
Twenty years of software development, writing about AI workflows, technical leadership, and the craft of building things.
The record so far: 20+ years building; 600+ GitHub stars , most of them on one repository; and blogging since 2012, with 33 articles live on this site 20 by year since 2018.The line counts articles currently published here, by year: 2018 2, 2019 0, 2020 5, 2021 0, 2022 1, 2023 0, 2024 4, 2025 1, 2026 20. Older posts live on as Dev.to imports and are not counted.
Start here
Three pieces chosen by hand. Two about building software for an audience of one; one about a UI pattern library written for coding agents.
AI Workflows · 9 July 2026The 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 Development · 9 July 2026The 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 · 14 August 2026I 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 & machine learning
Workflows, tools, and experiments.Output in 2026, by month: January was the busiest month, with 10 posts across every collection. The six most recent posts; the full list is on the AI page.
| Date | Title | Tags |
|---|---|---|
| 2026-08-14 | I Built an AI-Friendly UI Pattern Library | ai, claude code, css, ui |
| 2026-07-09 | The Future is Bespoke, Personalized Software | ai, claude-code, local-first, side-projects |
| 2026-07-09 | The Local-First App Skill | ai, claude-code, skills, architecture, local-first |
| 2026-03-25 | An Honest Opinion on the State of Code Gen AI, Spring 2026 Edition | ai, claude code, productivity |
| 2026-02-27 | I, AI: The Weight of Equal Parts (Part 3) | story |
| 2026-02-27 | The Claude Code Drawbacks | ai, claude code, productivity |
Digital Garden
Engineering, opinions, and deep dives. View all →
| Date | Title | Tags |
|---|---|---|
| 2026-02-23 | 17 Side Projects I Built With Claude Code in Two MonthsA 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. | ai, claude-code, side-projects, programming |
| 2026-01-08 | Common React Hooks Antipatterns and GotchasLearn about common React Hooks antipatterns and how to avoid them for better code quality. | |
| 2026-01-08 | The Simplest CSS GridsLearn the most common CSS Grid layouts with copy-pastable examples for two-column layouts, sidebar navigation, and more. | |
| 2024-03-13 | Constants vs Enums in TypeScriptTypeScript tips and tricks |
AI experiments
Projects, tools, and creative AI work.
- AI Workflow Consulting Service
- Helping companies implement AI tools and processes effectivelyClaude, LLMs, Prompt Engineering
- Claude Code Best Practices Article
- Guide to effective AI-assisted developmentClaude Code, TypeScript
- AI Glossary Article
- Comprehensive glossary of AI terms and concepts
- I, AI - Short Stories Experiment
- Science fiction exploring AI themes and futuresCreative Writing, AI
Elsewhere
Connect on LinkedIn, GitHub, and YouTube.
Projects worth a look: Programmer’s Proverbs (600+ stars), the YouTube channel (AI & dev), and Cottage UI (a React library). The rest are on Projects.
Work with me. I help companies implement AI workflows and accelerate their development teams.