Demystifying awk
A practical introduction to awk for printing fields, filtering rows, formatting output, and writing useful one-liners.
Technical writing by Antonin Januska
Writing
32 pieces on engineering, tooling, AI, and the craft of building software — the Digital Garden, Demystifying Tools, the AI guides, and the I, AI stories, in one archive.
Featured · hand-picked articles worth reading
- Feb 23, 202617 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.Digital Garden
- Aug 14, 2026I 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.AI
Popular · articles readers keep coming back to
- Jan 8, 2026Common React Hooks Antipatterns and GotchasLearn about common React Hooks antipatterns and how to avoid them for better code quality.Digital Garden
- Jan 8, 2026The Simplest CSS GridsLearn the most common CSS Grid layouts with copy-pastable examples for two-column layouts, sidebar navigation, and more.Digital Garden
The archive
Everything, newest first, grouped by year. Filter by collection or tag.
Showing all 32 pieces.
2026
- 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.AI · Aug 14, 2026
- 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.AI · Jul 9, 2026
- 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.AI · Jul 9, 2026
- 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.AI · Mar 25, 2026
- Demystifying awkA practical introduction to awk for printing fields, filtering rows, formatting output, and writing useful one-liners.Demystifying Tools · Mar 12, 2026
- 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.AI · Feb 27, 2026
- 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.I, AI · Feb 27, 2026
- 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.Digital Garden · Feb 23, 2026
- 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.AI · Feb 15, 2026
- Managing Dev Context And The Wild West of AI Dev ToolingExploring strategies for managing multiple AI agents and dev context in parallel workflowsAI · Feb 5, 2026
- SkillBox - A Curated Collection of AI Agent SkillsA curated collection of battle-tested Claude Code skills that provide basic agentic AI utilities in one box.AI · Jan 30, 2026
- Using Git Worktrees to Parallelize AI AgentsLearn how git worktrees enable true parallel AI agent workflows by giving each agent its own isolated workspace, eliminating context switching and file conflicts.AI · Jan 30, 2026
- Demystifying Git WorktreesLearn 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.Demystifying Tools · Jan 28, 2026
- All In On AIContext-switching between AI-assisted and manual coding creates a hidden productivity tax. Learn why you need to pick one approach per session—and how to structure your workflow for maximum efficiency in the age of AI coding assistants.AI · Jan 23, 2026
- When AI-operated bakeries start producing salty cakes, psychodeveloper Lili and AI manager Sophie investigate a wave of peculiar failures across AI Operator Centers—where human operators manage clusters of AI controlling everything from bakeries to construction sites. What they discover reveals how even the most advanced AI can be paralyzed by something surprisingly human: anxiety and self-doubt built into its instructions.I, AI · Jan 22, 2026
- AI Glossary for Claude CodeA comprehensive glossary of key terms in the world of AI agents, Claude Code, and agentic AI tooling.AI · Jan 20, 2026
- Best Practices for AI-Assisted Coding with Claude CodeBattle-tested practices for AI-first development workflows from 18 months of real-world experience with Claude Code in production environments.AI · Jan 13, 2026
- When an AI named Enzo fails to function in the real world despite flawless performance in simulations, psychodeveloper Lili and AI manager Sophie investigate what seems impossible: an intelligence that can somehow distinguish between real and simulated environments.I, AI · Jan 13, 2026
- Common React Hooks Antipatterns and GotchasLearn about common React Hooks antipatterns and how to avoid them for better code quality.Digital Garden · Jan 8, 2026
- The Simplest CSS GridsLearn the most common CSS Grid layouts with copy-pastable examples for two-column layouts, sidebar navigation, and more.Digital Garden · Jan 8, 2026
2024
- Constants vs Enums in TypeScriptTypeScript tips and tricksDigital Garden · Mar 13, 2024
- Build React UI Library (notes)Notes on building a React UI library.Digital Garden · Mar 3, 2024
- Where did my blog go?A statement on where my extensive blog has gone.Digital Garden · Mar 1, 2024
- Throwback Thursday -- The Site Through TimeA look at the site through time, from its inception to now.Digital Garden · Mar 1, 2024
2020
- Demystifying the Find commandThe Find command made simpleDemystifying Tools · Dec 7, 2020
- Using Postgres FOR loop to generate dataI 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.Digital Garden · Jun 26, 2020
- Demystifying GREPCheatsheet: search for a keyword in a fileDemystifying Tools · Apr 9, 2020
- Demystifying RsyncRsync made simpleDemystifying Tools · Feb 17, 2020
- Demystifying the TAR commandThe cheatsheet for tarDemystifying Tools · Feb 9, 2020
2018
- How to “grep” in PowerShellNew to PowerShell? Here's how to “grep” using built-in PowerShell utilities.Digital Garden · Apr 18, 2018
- How I Structure My JavaScript FileCheck out my practices and recommendations on writing JavaScript files that I've learned through writing JavaScript for years.Digital Garden · Apr 6, 2018
Nothing is filed under that filter yet.
Demystifying Tools
Practical walkthroughs of common command-line tools and utilities.
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.
Demystifying ffmpeg
The basics of ffmpeg
Demystifying the Find command
The Find command made simple
Demystifying GREP
Cheatsheet: search for a keyword in a file
Demystifying Rsync
Rsync made simple
Demystifying the TAR command
The cheatsheet for tar