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rkttu/README.md

Jung Hyun Nam (λ‚¨μ •ν˜„)

πŸ‡°πŸ‡· ν•œκ΅­μ–΄ | πŸ‡ΊπŸ‡Έ English

Solution Architect Β· 17-Year Microsoft MVP Β· Open Source Creator
Building the bridge between .NET, Cloud, and AI β€” for over two decades.

MVP dotnetdev Blog LinkedIn Sponsor


πŸ‘‹ About Me

I am a Solution Architect with 24 years of hands-on experience shipping production software β€” from desktop apps and backend services to cloud infrastructure, AI pipelines, and developer tooling.

What sets me apart is the breadth Γ— depth combination: I don't just use platforms β€” I build tools that extend them. I've created MCP servers for AI agents, ported document libraries across language boundaries, automated build pipelines for open-source ecosystems, and architected production game servers on Windows Containers before most people knew it was possible.

"I believe the best architects are the ones who still write code."


πŸ“Š By the Numbers

πŸ… 17 consecutive years Microsoft MVP for Developer Technologies (2009 – Present)
πŸ’Ό 24 years Professional software engineering experience (since 2002)
🌏 Korea's #1 Founded dotnetdev, the largest .NET developer community in Korea
πŸ“¦ Multiple NuGet packages Published and actively maintained on nuget.org
πŸ“° Media featured ETNews, Notion Customer Stories (global best practice)
πŸ€– AI tooling creator MCP servers, RAG pipelines, AI-assisted developer workflows

πŸ† Career Highlights

πŸš€ Windows Container Pioneer β€” Devsisters

Successfully architected and operated production game servers on Windows Containers for over a year β€” one of the earliest production deployments in the Korean gaming industry. Proved that Windows containers were viable for real-time game workloads at scale.

πŸ‘‰ Read the Tech Blog (Korean)

πŸ“ Engineering Culture Transformation β€” Devsisters

As a Technical Writer, designed and built an enterprise knowledge portal that fundamentally transformed the engineering culture. The system was showcased as a global best practice by Notion.

πŸ‘‰ Read the Notion Customer Story

πŸ›‘οΈ National Impact β€” TableCloth

Created TableCloth, a sandbox tool for Korean internet banking security that was featured in ETNews, one of Korea's top technology media outlets. The project addresses a pain point shared by millions of Korean internet banking users.

πŸ‘‰ Read the Article (Korean)


πŸ›  Tech Stack

Languages & Frameworks

C# .NET ASP.NET Core Blazor Python

Cloud & Infrastructure

Azure AWS Docker Kubernetes Windows Containers

AI & Data

OpenAI MCP WebAssembly


πŸ”­ Featured Projects

Projects I actively build and maintain β€” spanning AI tooling, document processing, developer experience, and system internals.

πŸ€– AI & MCP

Project Description
HandMirrorMcp An MCP server that lets AI coding agents inspect actual .NET assemblies and NuGet packages β€” eliminating API hallucination. Built with Mono.Cecil, ships as a dotnet tool. "Look before you code."
Reconsidered RAG A production RAG pipeline that separates data preparation from embedding. Documents β†’ Markdown (inspectable) β†’ Parquet (re-embeddable). "Prepare first, embed last."

πŸ“„ Document Processing

Project Description
HwpLibSharp .NET library for HWP (ν•œκΈ€) files β€” ported from Java. Read, write, extract text for RAG. Supports .NET Standard 2.0 / .NET 8 / Native AOT / Blazor. Published on NuGet.

πŸ›‘οΈ Security & Utility

Project Description
TableCloth Sandbox tool isolating Korean internet banking security programs via Windows Sandbox. Featured in ETNews.
AdmxPolicyManager Programmatic management of Windows Group Policy (GPO) β€” no GUI required.

πŸ”§ Developer Tools

Project Description
vscode-csharp-autobuild Auto-mirrors dotnet/vscode-csharp builds for VS Code forks (Cursor, VSCodium, etc.). Checks upstream every 6 hours.
BetterClearTypeTunerPlus Modernized ClearType font-smoothing tuner for Windows 10 with real-time preview.

🌐 Modern Web

Project Description
TableClothLite AI Chat frontend powered by OpenRouter, fully in Blazor WebAssembly.
Experimental.System.Messaging Porting legacy MSMQ to .NET Core/Standard β€” critical for enterprise modernization.

βš™οΈ System Internals & Networking

Project Description
WebsockifySharp .NET implementation of Websockify β€” WebSocket to TCP proxy/bridge.
wsl-sdk-com Manage WSL distributions programmatically via COM interface.
dotnetpy Execute Python scripts within .NET environments seamlessly.

πŸ’‘ What I Bring to a Team

  • Architect who codes β€” I don't just draw diagrams. I ship production systems, publish NuGet packages, and maintain open-source projects with real users.
  • Deep platform expertise β€” 24 years in the .NET ecosystem, with hands-on cloud architecture across Azure and AWS.
  • AI-native thinking β€” Building MCP servers and RAG pipelines today, not just consuming AI APIs.
  • Community multiplier β€” 17-year MVP track record and Korea's largest .NET community prove I elevate everyone around me.
  • Cross-boundary skills β€” Equally comfortable writing C#, Python, architect-level RFCs, or developer-facing documentation.

πŸ“« Let's Connect

MVP Profile Β· Blog Β· LinkedIn Β· Email

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