Generation for Minecraft game and loader metadata - possible future implementation in TypeScript.

For the time being this repo mirrors the latest commit - and you can use the generated output by setting your Metadata URL to https://thekodetoad.github.io/metabolism-test/output/.

First, run bun install. To run with Bun, run bun start - or to run with Node.JS, run bun startNode (doesn't currently work entirely correctly).

There are two key concepts - providers and goals. Providers are metadata sources, and goals are metadata targets. For example, the piston-meta provider provides data to the net.minecraft goal. Goals always specify a single dependency on a source (for the sake of simplicity).

Pass nothing to see full usage with a list of providers and goals.

Available commands:

Prepare data from the specified providers.

prepare, then run dependent goals. Useful as the directories touched will be exclusive to each provider.

Runs prepare for all dependencies of the specified goals.

Prepare and build everything.

• ☑️ Generate index (useable)
  • only writes what has been added in the last build (needs to keep existing entries)
• ❌ Remove old cache and output files

Generation for...

• ☑️ Minecraft (useable)
  • missing "texturepacks" and "no-texturepacks" trait
  • missing "legacyServices" trait
  • missing "noapplet" trait
• ☑️ LWJGL (useable)
  • (3.x.x) missing backported apple sillicon natives
  • (2.x.x) does not force version to latest on apple sillicon
• ✅ Fabric
• 🚧 NeoForge (does not launch)
  • no versions are recommended
  • all versions are classified as rlease
• ❌ Forge
• ✅ Quilt
• ❌ LiteLoader
• ❌ Mojang Java
• ❌ Adoptium
• ❌ Azul Zulu

The Rust rewrite (mcmeta) has been in the works for over two years - it can continue to coexist as a future alternative - but as of May 2025 something to replace our MultiMC meta fork feels long overdue. I (TheKodeToad) chose TypeScript as I am more familiar with it. But the main difference is that this rewrite is less ambition - this only intends to generate metadata in the existing format simply with (hopefully) cleaner code.

Licensing should not be a concern as no code is taken from the original project.