ProjT Launcher Custom Minecraft launcher for managing multiple installations with ease. A fork of Prism Launcher, evolving into an independent project.

Installation • Building • Contributing • License

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What is ProjT Launcher?

ProjT Launcher is a powerful, user-friendly launcher for Minecraft that lets you manage multiple game instances effortlessly. Originally forked from Prism Launcher, it’s now an independent project with its own vision and features.

Key Features

• Backup System: Granular backups for saves, configs, mods, and more.
• Performance Optimized: Faster UI, quicker launches, lower memory usage.
• Apple Silicon Native: ARM64 builds for macOS without Rosetta.
• Future-Ready: Mod profiles, cloud sync, and performance profiling coming soon.
• Prism Compatible: Import and use existing Prism instances seamlessly.

Goals

• Establish independent infrastructure and branding.
• Migrate to QML-based UI for better performance and modern design.
• Expand modding support and community features.
• Ensure cross-platform compatibility and native builds.

Note: Infrastructure is still being built. Some links/assets may point to Prism Launcher temporarily.

Packaging Status

ProjT Launcher is available in various package repositories. Check the badge above for current distributions and versions.

Installation

Official releases are available. For the most stable experience, use a release build or your distro package when available.

Stable Options

• Official Releases: Download installers/binaries from GitHub Releases.
• Package Manager: Install your distro’s projtlauncher package (see the Repology badge above for availability).
• Build from Source: Follow the Building from Source section for a reproducible release build.

Development Builds (Unstable)

These are for testing and contributors only:

• CI Artifacts: Check GitHub Actions for builds.
• Nix Flake: nix build .#projtlauncher
• Local Build: cmake -S . -B build && cmake --build build

Documentation

We have comprehensive documentation for contributors:

• Getting Started: Setup your environment (Windows/Linux/macOS).
• Code Style: Strict rules for C++ and QML.
• Project Structure: Where to put your files.
• Architecture: Understanding MVVM and the Task system.
• Workflow: How to submit a Pull Request.
• Testing: How to write and run tests.

Building from Source

Prerequisites

• CMake 3.22+
• Qt 6.x
• C++20 compiler
• Git submodules

Quick Build

git clone --recursive https://github.com/YongDo-Hyun/ProjT-Launcher.git
cd ProjT-Launcher
cmake -B build -DCMAKE_BUILD_TYPE=Release
cmake --build build --config Release

For detailed instructions:

• Nix Flake
• CMake Guide
• GitHub Actions

macOS Notes

• ARM64 (Apple Silicon) is prioritized.
• Universal binaries work on Intel macOS but are deprecated.
• See APPLE_SILICON_RATIONALE.md for details.

Community & Support

• Issues: Report bugs or suggest features on GitHub.
• Translations: Use upstream Prism strings for now; own workflow coming.
• Community Spaces: Discord/Matrix channels announced soon.

Forking & Redistribution

You can fork and redistribute freely under the GPL-3.0 license. For custom builds:

• Clearly state it’s not official ProjT Launcher.
• Change API keys in CMakeLists.txt to your own or disable them.
• Set Launcher_BUILD_PLATFORM for distributions (e.g., archlinux).

Building with default API keys implies acceptance of:

• Microsoft Identity Platform Terms
• CurseForge API Terms

License

Code: GPL-3.0-only (Only for Launcher)/ AGPL-3.0-only (Only for website)/ MS-PL (Only for metadata generation scripts) Assets: CC BY-SA 4.0

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Made with love for the ProjT contributors.