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
Staff Engineer building AI-backed systems, engineering standards, and the workflows that let teams ship serious software.
- Building
- 20+ years
- Blogging
- since 2012
- GitHub
- 600+ stars
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I Built an AI-Friendly UI Pattern LibraryA 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.
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The Future is Bespoke, Personalized SoftwareEvery 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.
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The Local-First App SkillA 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.
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An Honest Opinion on the State of Code Gen AI, Spring 2026 EditionA frank assessment of where code generation AI actually stands in 2026 -- from agentic harnesses to multi-agent architectures and what still needs to change.
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The Claude Code DrawbacksA 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.
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Agent Compiler - Embed Skills Directly Into Your ConfigA CLI tool that compiles Claude Code skills into CLAUDE.md and AGENTS.md for more reliable agent behavior.
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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.
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- Common React Hooks Antipatterns and GotchasLearn about common React Hooks antipatterns and how to avoid them for better code quality. ↵
- The Simplest CSS GridsLearn the most common CSS Grid layouts with copy-pastable examples for two-column layouts, sidebar navigation, and more. ↵
- Constants vs Enums in TypeScriptTypeScript tips and tricks ↵
AI Experiments
4 actionsProjects, tools, and creative AI work
AI Workflow Consulting
Helping companies implement AI tools and processes effectively
Claude, LLMs, Prompt EngineeringArticle↵Claude Code Best Practices
Guide to effective AI-assisted development
Claude Code, TypeScriptArticle↵AI Glossary
Comprehensive glossary of AI terms and concepts
ReferenceExperiment↵I, AI - Short Stories
Science fiction exploring AI themes and futures
Creative Writing, AIWhat I'd show you first
UI Pattern Library
Interface patterns lifted out of projects I actually shipped. Each one renders live in an isolated frame and comes with its markup, its styles, its behaviour, and the prompt that rebuilds it from scratch.
HTML · CSS · JavaScript
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Work With Me
I help companies implement AI workflows and accelerate their development teams.
Get in touch → gc