A. Januska antjanus.com

Preprint · antjanus.com · revised 29 September 2026

I build with AI and write about what I learn.

Antonin Januska1,*

1Staff Engineer · Boulder, Colorado

29 September 2026

Abstract

20+ years of software development, writing about AI workflows, technical leadership, and the craft of building things. This page is the index to that work: three articles to start with (Section 2), recent writing on AI (Section 3), the Digital Garden (Section 4), ongoing AI experiments (Section 5), and how to get in touch (Section 6).

Read the writing Work with me Browse UI patterns →

Keywords — AI workflows, Claude Code, technical leadership, software engineering, side projects

1Introduction

Antonin Januska in a black cap and glasses in front of a graffiti-covered brick wall
Figure 1: The author. AntJanus is the handle used everywhere else on the web.

Antonin Januska is a Staff Engineer building AI-backed systems, engineering standards, and the workflows that let teams ship serious software. He has been blogging since 2012, and his open source work has collected more than 600 GitHub stars, most of them on Programmer's Proverbs [11].

* Correspondence: antjanus.com/contact. Consulting on AI workflow audits, implementation sprints, and leadership advisory.

The headline figures, stated once and reused on the About page:

The remainder of this page is organised as follows. Section 2 collects three articles worth reading first. Section 3 lists the six most recent pieces on AI, and Section 4 the four most recent in the Digital Garden. Section 5 tabulates AI experiments, and Section 6 closes with projects and correspondence.

2Start here

Three hand-picked articles, one per theme: why software for an audience of one is about to be everywhere [2], the blueprint that makes those apps come out the same shape [3], and a UI pattern library built for coding agents to read [1].

(a) The Future is Bespoke, Personalized Software
(b) The Local-First App Skill
(c) I Built an AI-Friendly UI Pattern Library
Figure 2: Start here. (a) AI Workflows, 9 July 2026: “Every app I use is about 70% right.” (b) AI Development, 9 July 2026: a reusable blueprint for single-user apps. (c) AI, 14 August 2026: a UI pattern library where every pattern ships the prompt that rebuilds it.

3Recent work in AI

Workflows, tools, and experiments. The six most recent entries, newest first. The full list of twelve is in the AI section.

  1. [1]A. Januska. I Built an AI-Friendly UI Pattern Library. AI, 14 Aug. 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.
  2. [2]A. Januska. The Future is Bespoke, Personalized Software. AI, 9 Jul. 2026. Every app I use is about 70% right. The last 30% never ships because the addressable market for it is one person — me.
  3. [3]A. Januska. The Local-First App Skill. AI, 9 Jul. 2026. A reusable blueprint that tells Claude Code how to build a single-user app — Next.js, node:sqlite, a pure logic core.
  4. [4]A. Januska. An Honest Opinion on the State of Code Gen AI, Spring 2026 Edition. AI, 25 Mar. 2026. A frank assessment of where code generation AI actually stands in 2026.
  5. [5]A. Januska. I, AI: The Weight of Equal Parts (Part 3). I, AI — Short Stories, 27 Feb. 2026. An AI that learned human values so well, it started applying them to its own kind.
  6. [6]A. Januska. The Claude Code Drawbacks. AI, 27 Feb. 2026. Skipped tests, weakened assertions, scope creep and context rot, from real-world experience.

View all AI writing →

4Digital Garden

Engineering, opinions, and deep dives. The three most recent.

  1. [7]A. Januska. 17 Side Projects I Built With Claude Code in Two Months. Digital Garden, 23 Feb. 2026. From TUI apps in Rust and Go to browser games and AI agent tooling.
  2. [8]A. Januska. Common React Hooks Antipatterns and Gotchas. Digital Garden, 8 Jan. 2026. Common React Hooks antipatterns and how to avoid them for better code quality.
  3. [9]A. Januska. The Simplest CSS Grids. Digital Garden, 8 Jan. 2026. The most common CSS Grid layouts with copy-pastable examples.

View all writing →

5AI experiments

Table 1: Projects, tools, and creative AI work.
NameTypeDescriptionTech
AI Workflow ConsultingserviceHelping companies implement AI tools and processes effectivelyClaude, LLMs, Prompt Engineering
Claude Code Best PracticesarticleGuide to effective AI-assisted developmentClaude Code, TypeScript
AI GlossaryarticleComprehensive glossary of AI terms and concepts—
I, AI – Short StoriesexperimentScience fiction exploring AI themes and futuresCreative Writing, AI

6Projects and correspondence

  1. [11]A. Januska. Programmer's Proverbs. GitHub. 600+ stars.
  2. [12]A. Januska. YouTube Channel. AI & Dev.
  3. [13]A. Januska. Cottage UI. React Library, GitHub.

Elsewhere: LinkedIn, GitHub, YouTube. Everything else is in Projects.

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

Get in touch →