Hi, I'm Lee Dong Hyun,

About Me

I build practical software across AI, computer vision, LLM developer tools, and full-stack web products. My recent work includes terminal-based LLM tooling, OCR-backed game utilities, Discord bot tooling, synthetic document rendering experiments, and Unity/C# game projects.

Skills

Python
JavaScript
C#
C++
HTML5
CSS3
SQL
React
Node.js
Express
FastAPI
SQLite
Tailwind CSS
Unity
Blender
Git
GitHub
VS Code
npm
FFmpeg
Discord API
Tesseract.js
CMake
Visual Studio

Project Timeline

For more information, have a look at my curriculum vitae .

  • AjouLLM CLI 2026
    Built a Node.js terminal interface for LLM chat, project context, planning, and agent-style file edits.
    Node.js CLI LLM
  • Once Human Memetic Note 2025
    Developed a full-stack game utility with OCR, Discord auth, hive sharing, chat, and trading features.
    React Express OCR
  • Discord TTS 2025
    Published a Python TTS helper library for Discord bots with multilingual playback and filtering.
    Python Discord TTS
  • AppJam Railroad 2019
    Built an award-winning Unity roguelike train game during the 19th AppJam.
    Unity C# Hackathon

Selected Projects

AjouLLM CLI

Node.js CLI/TUI for using Mindlogic Gateway models from the terminal. It supports chat, project context scanning, planning, and agent-style file edits.

Demo
Node.js CLI TUI LLM

Once Human Memetic Note

Full-stack Once Human utility for tracking memetic progress with Discord auth, hive sharing, OCR, chat, and a trading board.

Demo
React Express SQLite OCR

Discord TTS

Python TTS helper library for Discord bots with multilingual playback, text filtering, FFmpeg checks, and voice-channel helpers.

Demo
Python Discord TTS FFmpeg

Doc3D Render

Synthetic document rendering experiments and Blender/Python pipeline fixes for computer vision dataset workflows.

Demo
Python Blender Computer Vision Synthetic Data

AppJam Railroad

Award-winning Unity roguelike train game built during the 19th AppJam entertainment category.

Demo
Unity C# Game Hackathon

Baekjoon Algorithm

C++ algorithm practice and problem-solving notes for Baekjoon Online Judge.

Demo
C++ Algorithms Problem Solving

GitHub Projects

gksmfahd78.github.io

1

Personal portfolio website for AI, computer vision, and software engineering projects.

Demo Github
github-pages jekyll portfolio resume

oncehuman-memeticnote

1

Full-stack Once Human memetic tracker with Discord auth, OCR, hive sharing, trading board, and responsive UI.

Demo Github
express game-tools nodejs ocr react sqlite tesseract

AjouLLMCLI

2

Node.js CLI/TUI for using Mindlogic Gateway models with project context, planning, and agent-style file edits.

Github
agent cli developer-tools llm nodejs tui

discord-tts

1

Python TTS helper library for Discord bots with multilingual voices, filtering, FFmpeg checks, and playback management.

Github
discord discord-bot ffmpeg python tts

Highthon_StorkDelivery

1

Unity/C# delivery game project built during Highthon.

Github
csharp game hackathon unity

deep-learning-study

1

Deep learning study notes and Python experiments from coursework and self-study.

Github
deep-learning machine-learning python study-notes

baekjoon-algorithm

1

C++ solutions and study notes for Baekjoon Online Judge algorithm practice.

Github
algorithm baekjoon cpp problem-solving

doc3d-render

2

Doc3D rendering workflow experiments and fixes for synthetic document image generation.

Github
blender computer-vision python rendering synthetic-data

AppJam_Railroad

1

Award-winning Unity roguelike train game built for the 19th AppJam entertainment category.

Github
appjam csharp game hackathon unity

Contact

I am interested in AI tools, computer vision workflows, and practical software products. The fastest way to explore my work is through the selected projects and GitHub links on this page.