⚙ 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

The Unix Design Story Behind Small Commands

Behind the small commands commonly seen in the command line lie the long-standing design and philosophy of Unix. This series traces the ideas of the Unix system, starting from syntax like 2>&1, pipes, and redirection.

2026.03.21 5 min read ⚙ Essays 📚 Hackers Targeting Developer Tools Supply Chain Security Developer Tools Cyber Security

Hackers Targeting Developer Tools — The Beginning of an Invisible War

An era where not programs, but developer tools are attacked. Through Notepad++, SolarWinds, and XcodeGhost, this explores the structure of software supply chain attacks and the new security boundaries of the development ecosystem.

2026.03.21 13 min read ⚙ Essays 📚 Hackers Targeting Developer Tools Supply Chain Attack Software Security Developer Tools

The XcodeGhost Incident — The Day Apple’s Developer Tools Distributed Malware

In 2015, identical malicious code was found in multiple iOS apps on the App Store. The cause was not a library, but a tampered Xcode tool. Developers unknowingly built and shipped infected apps, making XcodeGhost a key example of a developer tool supply chain attack.

2026.03.21 13 min read ⚙ Essays 📚 Hackers Targeting Developer Tools Supply Chain Attack Cyber Security SolarWinds

The SolarWinds Incident — The Day a Software Supply Chain Attack Stopped the World

The 2020 SolarWinds incident is one of the most significant supply chain attacks in modern cybersecurity. Attackers compromised the build system—not the software itself—injecting malicious code into legitimate updates, exposing thousands of organizations and the fragility of software trust.

2026.03.21 15 min read ⚙ Essays 📚 Hackers Targeting Developer Tools Supply Chain Attack Software Security Developer Tools

Why Attacking Developer Tools Means Attacking the World — Why Supply Chain Attacks Target IDEs and Editors

The Notepad++ incident was not just an editor hack. Developer tools are the starting point of software creation, and compromising them can impact countless users. This article explains why IDEs and editors are prime supply chain targets, with insights from XcodeGhost and SolarWinds.

2026.03.21 17 min read ⚙ Essays 📚 Hackers Targeting Developer Tools Supply Chain Attack Software Security Developer Tools

The Notepad++ Hack — It Was the “Update,” Not the Program, That Was Attacked

The Notepad++ incident was not a direct program compromise but an attack on its update supply chain. This article analyzes how update systems, distribution infrastructure, and developer tools become key targets in modern cyberattacks.

2026.03.21 4 min read ⚙ Essays 📚 Hackers Targeting Developer Tools Software Security Supply Chain Security Developer Tools

Hackers Targeting Developer Tools — Why Supply Chain Attacks Focus on IDEs and Editors

In recent years, attackers have shifted from program vulnerabilities to the software supply chain. Developer tools like text editors and IDEs are now key targets. This article explores why they focus on these tools and why such attacks are dangerous, with real-world examples.

2026.03.21 5 min read ⚙ Essays 📚 Development Tools After AI AI Developer Tools Software Development

Development Tools After AI — The Next Stage of the Software Production Revolution That Began with Text

AI code generation is not a sudden revolution but the next step in the evolution from text editors to Markdown and IDEs. This article traces that progression, showing how software production is shifting and where development is headed after AI.

2026.03.21 13 min read ⚙ Essays 📚 Development Tools After AI AI Coding Tools Software Development Developer Tools

Are AI Editors Truly New? — The Evolution of Development Tools After Copilot

Development tools are rapidly evolving with the rise of AI code generation. Tools like GitHub Copilot, Cursor, and Windsurf have introduced the idea of the “AI editor.” But is this truly a new paradigm, or the next step in a long evolution from text editors to IDEs? This article explores that shift.

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

Why Did Text Editors Become IDEs? — From Simple Editors to Development Platforms

Text editors were once simple code tools. As systems grew, they absorbed more features. With plugins and VS Code, they evolved into platforms with debugging, Git, and terminals. This article traces how editors became nearly indistinguishable from IDEs.