⚙ Essays

A collection of technical notes aimed at understanding and documenting how systems actually work. It explores Unix design philosophy, runtime environments, development tools, software architecture, and the real-world problems encountered during development along with their solutions. Rather than offering simple tutorials, it focuses on the underlying principles, historical context, and the reasoning behind design decisions—closer to an engineering journal than a how-to guide.

Latest posts

2026.03.21 15 min read ⚙ Essays 📚 Development Tools After AI Markdown Documentation Software Tools

Why All Text Tools Are Converging on Markdown — The Common Language of Notion, GitHub, and LLMs

Markdown began as a simple syntax for developer docs. With GitHub, Notion, collaboration tools, and AI models adopting similar structures, it has become a common language. This article explores how Markdown evolved—and why modern text tools are converging on it.

2026.03.21 13 min read ⚙ Essays 📚 Development Tools After AI Text Editor notepad AI Development Tools

Why Is Notepad Becoming an AI Program? — 40 Years of Text Editor Evolution

Windows Notepad long symbolized simplicity. With recent updates adding Markdown and AI features, its role is shifting. This change reflects the evolution of text editors over 40 years—from Notepad to VS Code and now AI-powered editors.

2026.03.21 4 min read ⚙ Essays 📚 Development Tools After AI AI Development Text Editor Developer Tools

Development Tools After AI — The Evolution of Software Production That Began with Text

Text editors began as simple tools, evolved into development environments, and are now becoming AI-driven interfaces. This series traces that journey—from early text tools to Markdown, IDEs, and the rise of AI-powered editors.

2026.03.21 4 min read ⚙ Essays 📚 Development in the Age of AI AI Software Architecture Software Engineering

Development After AI — What Lasts Longer Than Code

As AI begins to write code, the center of software development is gradually shifting. This final piece ties together changes in designers, frontend developers, and organizations—examining what capabilities truly matter in development after AI.

2026.03.21 15 min read ⚙ Essays 📚 Development in the Age of AI AI Development Software Engineering Dev Organization

Development After AI — In the Age of AI, How Will Engineering Organizations Change? — Judgment Has Become Scarcer Than Code

As AI begins to automate code generation, the bottleneck in software development is shifting from code production to design and judgment. This article explores how developer roles and organizational structures are evolving—and what will become the scarcest resource in the AI era.

2026.03.21 13 min read ⚙ Essays 📚 Development in the Age of AI AI Development Software Engineering AI Coding Tools

Development After AI — If Code Is Faster, Why Is Development Slower?

AI coding tools have dramatically increased code generation speed. But in practice, development isn’t as fast as expected. The bottleneck has shifted from writing code to understanding, validating, and designing systems, redefining developers from coders to system-level decision makers.

2026.03.21 14 min read ⚙ Essays 📚 Development in the Age of AI AI Frontend Development Design System

Development After AI — Will Frontend Developers Disappear? The Moment Roles Are Redefined in the Age of AI

As AI begins generating UI code, many question the future of frontend developers. But what’s disappearing isn’t the role—it’s the task. This article explores how the design-to-code translation is changing, and why frontend developers are shifting from UI builders to interface system designers.

2026.03.21 13 min read ⚙ Essays 📚 Development in the Age of AI AI Design System Product Design

Development After AI — Will Designers Disappear in the Age of AI? The Real Question Isn’t Figma

As AI begins generating UI, the question “Will designers disappear?” has emerged. But the real shift isn’t about roles—it’s about how products are built. As UI becomes cheaper, advantage moves from tools like Figma to design systems, shifting design from screens to structured experiences.

2026.03.21 4 min read ⚙ Essays 📚 Development in the Age of AI AI Software Engineering Developer Productivity

Development After AI — The Restructuring of Software Production

Are AI coding tools just speeding up development, or fundamentally changing how software is made? This series explores how roles and production structures are shifting in the post-AI era—and which skills matter more as code becomes easier to write.