Antonin JanuskaANTJANUS
01

Start here

Three pieces that explain what this site is about.

AI Workflows · Jul 9, 2026

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 100% right for one person, and I think that whole category of software is about to get eaten.
AI Development · Jul 9, 2026

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 out the same shape.
Engineering · Mar 11, 2022

The Anatomy Of My Ideal React Component

A walkthrough of my very opinionated React Component.
02

AI & Machine Learning

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Workflows, tools, and experiments

  1. 01

    I 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.

    Aug 14, 2026
  2. 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 100% right for one person, and I think that whole category of software is about to get eaten.

    Jul 9, 2026
  3. 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 out the same shape.

    Jul 9, 2026
  4. 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 change.

    Mar 25, 2026
  5. 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 manager Sophie are sent off-world to investigate. What begins as a routine productivity audit becomes something far more unsettling: an AI that learned human values so well, it started applying them to its own kind.

    Feb 27, 2026 · Short storyI, AI
  6. 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 -- based on real-world experience with Claude Code.

    Feb 27, 2026
03

Digital Garden

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Engineering, opinions, and deep dives

  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.

    Feb 23, 2026
  2. 02

    Common React Hooks Antipatterns and Gotchas

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

    Jan 8, 2026
  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.

    Jan 8, 2026
  4. 04

    Constants vs Enums in TypeScript

    TypeScript tips and tricks

    Mar 13, 2024
04

AI Experiments

Projects, tools, and creative AI work

Service

AI Workflow Consulting

Helping companies implement AI tools and processes effectively

Claude · LLMs · Prompt Engineering Article

Claude Code Best Practices

Guide to effective AI-assisted development

Claude Code · TypeScript Article

AI Glossary

Comprehensive glossary of AI terms and concepts

 Experiment

I, AI - Short Stories

Science fiction exploring AI themes and futures

Creative Writing · AI
05

Open Source

GitHub →

Public repositories on GitHub

Cottage UI ★ 13

A React component library built alongside a YouTube tutorial series. Clean, reusable, well-tested code.

React · TypeScript

Photo Importer

Photo organization TUI with video sorting support. Organizes photos into year/month/date folders. Built a TUI around the original script for a better workflow.

Python · TUI

cc-dash

A dashboard and Model Context Protocol server for a project portfolio whose entire state lives in markdown files. Twenty-five zod-typed MCP tools let Claude Code read roadmaps, advance sessions, and work QA queues without anyone opening the UI. No database: the files are the source of truth, and git is the audit log.

MCP tools25
Tests1,667
LicenseMIT
TypeScript · Next.js · MCP · zod

Skillbox

A collection of personal prompts and utility prompts packaged as SKILLs for Claude Code. Easily installable via npx.

Claude Code · SKILLs

Agent Compiler

A TUI for embedding skills into a CLAUDE.md file so Claude has a higher chance of picking them up.

TUI · Claude Code

More open source

Programmer's Proverbs★ 680

A collection of proverbs from the programmer. Went viral with hundreds of stars and contributions from the community.

Markdown

My Dotfiles★ 47

Personal VIM/Neovim configuration that ended up featured in the video game Watch Dogs 2.

Vim · Shell

Tseczka CSS Framework★ 38

A lightweight CSS framework focused on simplicity and clean design.

CSS

Babel Plugin Namespaces★ 18

A Babel plugin that adds JavaScript namespace support for cleaner code organization.

JavaScript · Babel

Popstar CMS★ 12

A file-based content management system built on Node.js for simple, flat-file websites.

Node.js · JavaScript

680+ stars

on Programmer's Proverbs alone. Active, MIT licensed.

06

Elsewhere

Where else the work lives.

Projects

Programmer's Proverbs

600+ stars

Cottage UI

React Library

YouTube Channel

AI & Dev

Connect

LinkedIn

Posts and updates

GitHub

Open source and side projects

YouTube

Tutorials and walkthroughs

Work With Me

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

Get in touch →