[Claude Code] Building a Real-Time Agent Dashboard
How I built a real-time monitoring dashboard to visualize what 19 Claude Code subagents are doing – from a failed Gather Town experiment to a practical WebSocket-powered control center.
Development
[Claude Code] Designing an Expert Team with Subagents
How to build an expert team from planning to deployment by combining Claude Code’s Subagents, Skills, Rules, Hooks, and MCP Servers.
[Kiro] MCP Server Configuration
A guide on how to configure and manage MCP servers in Kiro, with practical examples.
[Kiro] Agent Configuration
A guide covering agent creation, configuration, prompt modularization, and sub-agent usage in Kiro.
[Kiro] CLI Installation and Settings
A guide on how to install Kiro CLI and the key configuration options in the cli.json settings file.
[Kiro] Kiro x Claude: 3-Tier AI Service Architecture
An analysis of how Kiro calls Claude models through a Client Layer + 3-Tier Service Layer, and why the same model delivers different performance depending on the App Provider.
[LLM] HyDE — Hypothetical Document Embeddings
An overview of HyDE (Hypothetical Document Embeddings), a technique for improving retrieval quality in RAG.
[LLM] LangChain Core Concepts — LCEL, Prompt Templates, Message Classes
An overview of LangChain’s LCEL, prompt templates, message classes, MessagesPlaceholder, and RunnableGenerator.
[LLM] Integrating LLMs with the Ollama Python Library
Using the Ollama Python library to connect to a remote LLM server, with generate, chat, and LangChain integration.
[Python] Setting Up a Python Dev Environment with uv and PyCharm
Setting up a Python project with the uv package manager and configuring the development environment in PyCharm.
[Swagger] Building Swagger UI for Korean Law Open API with Vercel Deployment
Writing an OpenAPI Spec for Korea’s Legislative Service Open API, building Swagger UI documentation, deploying it to Vercel, and resolving Mixed Content issues with a Rewrites proxy.
[MCP] Building an MCP Server for Scapple Diagrams
I built an MCP server that lets AI assistants read, write, and render Scapple files directly.
[Jekyll] Auto-Apply Lightbox (Magnific Popup) to Markdown Images
Fix the issue where clicking markdown images in Minimal Mistakes theme doesn’t trigger lightbox, using jQuery auto-wrapping.
[LLM] Setting Up Ollama Remote Access
Configuring the OLLAMA_HOST environment variable and Windows Firewall to access a local LLM from other devices on the same network.
[LLM] Running Qwen3:8B with Ollama on Windows 11
A complete guide to installing Ollama and running the Qwen3:8B model locally on Windows 11.
[Docker] Docker Compose GHCR Auth and Milvus Volume Initialization
Resolving GHCR private image authentication errors and RocksDB WAL volume conflicts when running a Milvus stack with Docker Compose.
[iOS] Integrating Machine Learning Models into iOS Apps with Core ML Tools
How to convert a PyTorch model to Core ML format using Core ML Tools and integrate it into an iOS app.
[Git] Syncing Configuration Files with Git Using Symbolic Links
How to version-control configuration files in a Git repository using symbolic links.
[macOS] Building a Claude Code Voice Assistant in the Small Hours
Building a macOS assistant demo that relays Claude Code CLI’s input and output through voice on a sleepless night
[Code Quality] Building Automated PR Code Review with Claude
A story of building automated GitHub PR review with Claude Code Action for a side project.
[iOS] Placing and Rotating Circular Menu Items with Trigonometry
How to place and rotate circular menu items using sin, cos, and atan2 in iOS.
[Jekyll] Implementing Multilingual Support (KO/EN/JA) Without Plugins
Sharing the experience of implementing Korean, English, and Japanese support in a Jekyll blog with the Minimal Mistakes theme — without any plugins.
[iOS] Modular Architecture with CocoaPods Private Spec Repos
How to modularize an iOS project into layered modules using CocoaPods Private Spec Repos.
[macOS] Building a Claude Code Monitor with Claude Code
Sharing the experience of building a macOS menu bar app that monitors Claude Code’s own usage — using Claude Code itself.
[Xcode] Setting Up MCP Servers for the Agentic Coding Assistant
A guide to connecting MCP servers to the Xcode agentic coding assistant.
[Xcode] Using Claude Opus 4.6 in Xcode 26.3
How to configure Xcode 26.3 to use the Claude Opus 4.6 model as an agentic coding assistant.
[Java] Installing OpenJDK
How to install Eclipse Temurin OpenJDK on macOS using Homebrew.
[Ruby] Displaying Gem Paths in Bundle
How to check gem paths in Bundler.
[Ruby] Installing Ruby
How to install Ruby using rbenv on macOS.
[Jekyll] Changing Word Break Properties in the Minimal Mistakes Theme
How to change word break properties in the Minimal Mistakes theme to fix horizontal scrolling on mobile.
[CI/CD] Disabling fastlane Update Check and Changelog Logs
How to disable fastlane’s update check log and changelog log.
[Jekyll] Running a Local Server with a Specific IP and Port
How to run a Jekyll local server with a specific IP address and port.
[CI/CD] Creating a fastlane Plugin
How to create and distribute a custom fastlane Plugin.
[CI/CD] Creating a fastlane Action
How to create a custom fastlane Action.
[CI/CD] Using fastlane Plugins
How to add and manage fastlane plugins.
[Python] Installing PIP
How to install PIP, the package manager for Python 3.
[CI/CD] Installing fastlane
How to install fastlane on macOS.
[Git] Using Multiple SSH Keys on GitHub
How to use multiple SSH keys on GitHub.
[Apple] Keynote - September 14, 2021
A summary of the new devices and services announced at the Apple September 2021 keynote.
[Xcode] Building for iOS 15 Devices with Xcode 12
How to deploy builds to iOS 15 or iPadOS 15 devices using Xcode 12.
[Git] Installing Git LFS
How to install and set up Git LFS on macOS.
[Ruby] Installing Homebrew
How to install Homebrew on macOS.
[CocoaPods] Installing CocoaPods
How to install CocoaPods on macOS.
[Objective-C] Class and Method, Instance
A summary of classes, methods, and instances in Objective-C.
[Objective-C] Branch Statements
A summary of branch statements in Objective-C.
[Objective-C] Loop Statements
A summary of loop statements in Objective-C.
[Spring] Setting Up a Spring 5 Development Environment
How to set up a Spring 5 development environment.
[Objective-C] Operators and Expressions
A summary of operators and expressions in Objective-C.
[Objective-C] Primitive Data Types
A summary of primitive data types in Objective-C.
[Objective-C] Study Resource Collections
A curated list of useful study resources for learning Objective-C.
[iOS] Handling the iOS 13 View Controller Modal Presentation Style Change
How to handle the default Modal Presentation Style change introduced in iOS 13.