J3

Minecraft for Windows mod manager

Development status

This will be a complete remake of Jiayi Launcher, matching most of its feature set and iterating upon some features. J3 is currently under heavy development.

Features (planned)

• Written from the ground up in C++ using other open source libraries for reliability and performance
• Simple, clean, and customizable user interface
• Manage and run internal and external mods/clients, local or on the internet
• Switch between versions and view release notes with the version manager
• Create and restore backups of your game data

Installation

Due to the mod manager being so incomplete, there is currently no way for an end user to easily install J3.

We plan to package releases in the APPX/MSIX format for simple installation and well-defined system permissions.

Building

If you'd like to, you can clone this repository and build J3 yourself with the instructions below.

Requirements

• A computer running Windows 10 or 11
• Git
• Windows SDK and build tools, retrieved by installing Visual Studio with the Desktop development with C++ package
  • This means you'll be building with MSVC, but clang-cl works as well (we use it for release builds)
• CMake >= 3.30
• An IDE that supports building CMake projects
  • We highly recommend using CLion, but the aforementioned Visual Studio should work, given you have CMake support installed
  • You can omit this step if you prefer to not use an IDE and you know what you're doing

Steps

1. Clone the repository

• git clone https://github.com/JiayiSoftware/J3.git

2. Open the folder in your IDE
3. Build the project

Contributing

If you want to contribute to J3, you can fork the repository and submit a pull request. Please join our Discord server above for a guide of our custom app framework.

The code is relatively cleaner than the legacy Jiayi Launcher's codebase, but there is still no code style to adhere to. Please try to keep the code clean and readable; I'll try to as well 😅 - phase

License

J3 is released under the GNU General Public License, version 3.0. You can read the license here.

This is a summary of the license:

• You can modify, share and sell the code any way you please
• ...but you have to open source projects that do this under a compatible GPL license
• Any changes should be documented

If you bought this program, you were scammed!