Antonin Januska

Writing

18 articles on engineering, tooling, and the craft of building software.

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Featured

Hand-picked articles worth reading

  1. 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. The Anatomy Of My Ideal React Component

    A walkthrough of my very opinionated React Component.

Popular

Articles readers keep coming back to

  1. Common React Hooks Antipatterns and Gotchas

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

  2. The Simplest CSS Grids

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

Digital Garden

Engineering, opinions, deep-dives, and everything in between.

Browse the collection

  1. 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. Common React Hooks Antipatterns and Gotchas

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

  3. The Simplest CSS Grids

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

  4. Constants vs Enums in TypeScript

    TypeScript tips and tricks

  5. Build React UI Library (notes)

    Notes on building a React UI library.

  6. Where did my blog go?

    A statement on where my extensive blog has gone.

  7. Throwback Thursday -- The Site Through Time

    A look at the site through time, from its inception to now.

  8. The Anatomy Of My Ideal React Component

    A walkthrough of my very opinionated React Component.

  9. Using Postgres FOR loop to generate data

    I don't know about you but I often need a 100 of something in my database to properly test a page. Here's how to use Postgres FOR loops to generate test data quickly.

  10. How to "grep" in PowerShell

    New to PowerShell? Here's how to "grep" using built-in PowerShell utilities.

  11. How I Structure My JavaScript File

    Check out my practices and recommendations on writing JavaScript files that I've learned through writing JavaScript for years.

Demystifying Tools

Practical walkthroughs of common command-line tools and utilities.

Browse the collection

  1. Demystifying awk

    A practical introduction to awk for printing fields, filtering rows, formatting output, and writing useful one-liners.

  2. Demystifying Git Worktrees

    Learn how to work with multiple Git branches simultaneously using worktrees - a powerful feature that lets you check out different branches as separate folders while sharing Git data.

  3. Demystifying ffmpeg

    The basics of ffmpeg

  4. Demystifying the Find command

    The Find command made simple

  5. Demystifying GREP

    Cheatsheet: search for a keyword in a file

  6. Demystifying Rsync

    Rsync made simple

  7. Demystifying the TAR command

    The cheatsheet for tar

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Other collections and series

  1. AI

    Practical guides, best practices, and insights for working with AI tools.

  2. I, AI

    A fictional short story series exploring artificial intelligence, consciousness, and the boundaries between machine and mind.