Staff Engineer · Boulder, CO

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.

Antonin Januska in a black cap and glasses in front of a graffiti brick wall
20+years building 600+GitHub stars 2012blogging since
Start here

Three posts to read first

Hand-picked. If you only read three things on this site, make it these.

AI & Machine Learning

Workflows, tools, and experiments

View all AI →
  1. 02

    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…

  2. 03

    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 ou…

  3. 04

    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 …

  4. 05

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

    When a lunar mining base's AI starts overassigning crews and its robots begin prioritizing each other over human safety, psychodeveloper Lili and AI m…

  5. 06

    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 -- base…

Digital Garden

Engineering, opinions, and deep dives

View all writing →
  1. 01

    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.

  2. 02

    Common React Hooks Antipatterns and Gotchas

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

  3. 03

    The Simplest CSS Grids

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

  4. 04

    Constants vs Enums in TypeScript

    TypeScript tips and tricks

AI Experiments

Projects, tools, and creative AI work

Experiment

I, AI - Short Stories

Science fiction exploring AI themes and futures

Creative Writing · AI

Connect

Find me elsewhere

LinkedIn GitHub YouTube
Projects

Things people use

Work with me

Let's make your team faster.

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

Get in touch →