# TRN-10: Hydra-composable FATHOM config tree. # Invoke: python -m train.grpo model=qwen_1_5b train=grpo data=v1 reward=v1 defaults: - model: qwen_1_5b # OVERRIDE: model=qwen_0_5b_smoke for laptop - train: grpo # OVERRIDE: train=sft - data: v1 - reward: v1 - _self_ seed: 42 output_dir: outputs