About Me
Hi, I'm JackHan, a developer and reverse engineer who loves tinkering. I currently focus on the development and ecosystem of the QQFrame framework, while also working on Android app development, reverse engineering, AI model deployment, and model training.
My Journey
2022.12
Started learning HTML, wrote my first line of web code, and officially entered the world of programming.
2023.04
Started learning PHP, got into backend development and server-side logic, and began building dynamic websites.
2024.11
Started learning EPL (Easy Programming Language), entered desktop software development, and began exploring reverse engineering and network protocol research.
2025.01
Officially started developing the QQFrame framework, focusing on architecture design and feature implementation.
2025.07
Began systematic study of Android App development — Activity lifecycle, UI layouts, data storage, network requests, and the four major components. Now capable of building complete apps independently.
2026.03
Researched and deployed local AI models for testing, mastering local inference setup, model quantization, and performance tuning.
2026.04
Started reverse engineering QQ's LibFekit.so, studying its internal implementation and communication mechanisms.
2026.06
Started training YOLO-V5 image models, stepping into object detection and computer vision.
2026.08
Consolidated my knowledge, systematically organizing the tech stack across frontend, backend, reverse engineering, AI, and framework development.
Projects
QQFrame Framework
A development framework for the QQ platform, started in January 2025. The goal is to provide cleaner and more stable interface wrappers that lower the barrier to secondary development. Currently under continuous iteration — feedback and collaboration are welcome.
Android App Development
Full-stack Android app development skills, familiar with the Activity lifecycle, UI layouts, data storage, network requests, Service and Broadcast mechanisms. Able to independently deliver an app from requirements to release.
Java / Kotlin
Android Studio
Reverse Engineering & Protocol Research
Research on reverse engineering of Android and desktop software, including APK decompilation, Smali analysis, native SO library reversing (such as QQ's LibFekit.so), dynamic debugging, hooking, and packet capture plus parsing of network protocols.
🔍 Reverse Engineering
📡 Protocol Analysis
🧩 SO Reversing
AI Model Deployment & Training
Deployed large AI models in a local environment and completed inference testing, with hands-on experience in model quantization and performance tuning. Also trained YOLO-V5 models for object detection, stepping into the field of computer vision.
🤖 Local LLM
👁 YOLO-V5
⚙ Model Tuning