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Rockoran/
Fabric-Coder

Name: Fabric-Coder
Availability: InStock

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Fabric Coder v3

A LoRA fine-tune of Qwen2.5-Coder-14B-Instruct for Minecraft Fabric 1.21.10 modding with Yarn mappings.

Model	Base	Quant	Size
fabric-coder-v3	Qwen2.5-Coder-14B-Instruct	Q4_K_M	8.6 GB

Targeted at 1.21.10 API changes that vanilla Qwen2.5-Coder gets wrong:

writeData(WriteView) / readData(ReadView) (replaces removed writeNbt/readNbt)
AttachmentRegistry.builder() pattern
DataTracker.Builder + builder.add() (replaces startTracking)
@WrapOperation without CallbackInfo
LootTableEvents 4-param signature
source.isOf(DamageTypes.FALL) (replaces DamageSource.FALL)
Yarn mappings only — never MojMap/Forge names

bash

ollama create fabric-coder-v3 -f Modelfile
ollama run fabric-coder-v3

Base: Qwen2.5-Coder-14B-Instruct
LoRA r=16 α=32, NEFTune α=5
Curriculum: codegen 12×, correction 10×, QA 4×, reference 1×
Data: Fabric 1.21.10 javadocs, Yarn mappings, real mod code, targeted correction pairs
Mappings: Yarn 1.21.10+build.3 (Fabric Loader 0.19.3, Fabric API 0.138.3+1.21.10)

Training pipeline and dataset research: Rockoran/Random-Coding-Bullshit