Works

Ho Chi Minh City AI Challenge — Multimodal Video Retrieval 2024–2025

Multimodal data intelligence platform for interactive video search and analysis, built for the Ho Chi Minh City AI Challenge (2024 & 2025 qualification rounds). Combines visual, textual, and temporal signals to retrieve target moments from large news-video corpora.

Tech stack: Python, multimodal retrieval, vector search

Code

Flower Classification with ResNet-50 & Contrastive Learning 2024

Image-classification study on the Flowers-102 dataset for the Fellowship.AI challenge — a ResNet-50 backbone combined with a contrastive-learning pipeline, with analysis of class distribution, training dynamics, and an inference demo.

Tech stack: PyTorch, ResNet-50, contrastive learning

Vietnamese Text Classification with PhoBERT

Fine-tuning Vietnamese pretrained language models (PhoBERT, with a Longformer variant for long documents) for domain text classification — covering tokenization strategy, long-input handling, and evaluation of the final model.

Tech stack: PhoBERT, Longformer, Hugging Face Transformers

Hopfield Network Plays Wordle

An associative-memory approach to Wordle — encoding the answer vocabulary into a Hopfield network and letting energy minimization recall candidate words from partial letter constraints, wrapped in a playable game interface.

Tech stack: Python, Hopfield networks, associative memory

Banking Intent Classification with Fine-tuned LLMs

Parameter-efficient fine-tuning of compact language models for banking customer-intent classification, using the Unsloth training stack for fast LoRA adaptation on a single GPU.

Tech stack: Unsloth, LoRA, Hugging Face Transformers

Code

Beer Detection with YOLO

Real-time object detection for beer products — a YOLO detector trained on custom data and packaged behind a simple user interface for running detections on images and streams.

Tech stack: YOLO, OpenCV, Python

Maze Game — Pathfinding & Q-learning

A maze game doubling as an algorithms playground — procedural maze generation, side-by-side visualization of classical pathfinding, and a Q-learning agent that learns to solve the maze through reinforcement.

Tech stack: Python, A* search, Q-learning

SwiftUI 2048 with C++ AI

The 2048 game for iOS written in Swift/SwiftUI, with a C++ engine that plays the board automatically — native UI on top of a performance-critical search core bridged into the app.

Tech stack: Swift, SwiftUI, C++

Code Demo

mx — Markdown Editor

A fast, lightweight Markdown editor for the AI era, built with Tauri 2 and Rust — native performance and a small footprint with a modern TypeScript front end.

Tech stack: Tauri 2, Rust, TypeScript

Code Demo

USRing — Embedded Sensing System

End-to-end embedded system for the USRing hardware — firmware for the primary ESP32 board and its camera module, plus a Go web server that interfaces with and manages the devices.

Tech stack: ESP32, C++, Go

Code

HCMUS Course Registration Automation

Async Python client for the HCMUS course-registration flow — adaptive concurrency control and a circuit-breaker pattern to stay fast and well-behaved against an overloaded backend during registration windows.

Tech stack: Python, asyncio, circuit breaker

Code

Remote Control via Email

Controlling a remote machine through email — commands are parsed from a mailbox and dispatched to a client agent, with results returned by mail; a study in building an RPC channel over an unconventional transport.

Tech stack: client–server architecture, email protocols

DreamHack Wargame Crawler

A robust crawler that discovers, downloads, and organizes DreamHack wargame challenges into a local practice library — resumable downloads and structured metadata for offline study.

Tech stack: Python, TypeScript

Code

CTF_Lib — Solver Utilities

Helper libraries and utilities accumulated from real CTF solving — reusable building blocks for setup and problem-solving across cryptography, web, and misc categories.

Tech stack: Python, pwntools ecosystem

Code

CTF Archive — Crypto Challenge Hosting

Self-hosted archive of notable cryptography challenges from past CTFs — keeping great problems runnable and solvable after their competitions end.

Tech stack: challenge hosting, cryptography

Code