LibSandstone

LibSandstone is a powerful framework and library for creating Minecraft modifications that significantly simplify and expand development capabilities. This tool was originally created for working with the Reliquary mod, but it's completely open for use in any other projects.

If you're installing Reliquary, you don't need to download LibSandstone separately - everything necessary will be automatically installed and configured. All source code is available under the LGPLv3 license, ensuring freedom of use and modification.