Add asset README

README.md

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+# PhysicalWord last05_mot2_action Assets
+
+This dataset repo contains the private/custom assets needed to train
+`last05_mot2_action` on a machine that cannot access the source NAS.
+
+Code repo expected by the migration guide:
+
+- GitHub: `https://github.com/zhang-yi-ming/phyword.git`
+- Branch: `mot2_cosmos_ae`
+- Commit: `1495a9d`
+
+## Included
+
+This repo intentionally includes:
+
+```text
+ckpt/pretrained/LaST0_Pretrain_AE_chunk16/tfmr/
+data/libero_training_data_last05_lastest/libero_spatial_20hz_224_dual/
+rlbench/
+```
+
+Approximate source sizes:
+
+```text
+ckpt/pretrained/LaST0_Pretrain_AE_chunk16/tfmr                         4.0G
+data/libero_training_data_last05_lastest/libero_spatial_20hz_224_dual  2.8G
+rlbench                                                               25G
+```
+
+## Not Included
+
+Cosmos Predict2.5 weights are not included in this repo. Download them from
+the official gated NVIDIA Hugging Face model after accepting the license:
+
+```bash
+huggingface-cli download nvidia/Cosmos-Predict2.5-2B \
+  --local-dir /mnt/nas/zhangyiming/database/ckpt/pretrained/Cosmos-Predict2.5-2B
+```
+
+The source scripts expect the Cosmos checkpoint at:
+
+```text
+/mnt/nas/zhangyiming/database/ckpt/pretrained/Cosmos-Predict2.5-2B/base/pre-trained/d20b7120-df3e-4911-919d-db6e08bad31c_ema_bf16.pt
+```
+
+Already-trained MoT2 evaluation checkpoints are also not included.
+
+## Target Layout
+
+Download this dataset repo directly into:
+
+```bash
+/mnt/nas/zhangyiming/database
+```
+
+Example:
+
+```bash
+export HF_HUB_ENABLE_HF_TRANSFER=1
+mkdir -p /mnt/nas/zhangyiming/database
+
+huggingface-cli download <owner>/physicalword-assets \
+  --repo-type dataset \
+  --local-dir /mnt/nas/zhangyiming/database
+```
+
+The training JSON files contain absolute paths under
+`/mnt/nas/zhangyiming/database`. If the assets are downloaded elsewhere, create
+a symlink:
+
+```bash
+mkdir -p /mnt/nas/zhangyiming
+ln -sfn /actual/database/path /mnt/nas/zhangyiming/database
+```
+
+## Asset Notes
+
+### Action Expert
+
+Expected target path:
+
+```text
+/mnt/nas/zhangyiming/database/ckpt/pretrained/LaST0_Pretrain_AE_chunk16/tfmr
+```
+
+Files:
+
+```text
+config.json
+model.safetensors
+preprocessor_config.json
+processor_config.json
+special_tokens_map.json
+tokenizer.json
+tokenizer_config.json
+```
+
+This directory is used as both the action expert and processor/tokenizer source
+by the MoT2 scripts. Do not replace it with Janus-Pro-1B.
+
+### RLBench
+
+Expected target root:
+
+```text
+/mnt/nas/zhangyiming/database/rlbench
+```
+
+The full source `rlbench` directory is included. The key training files used by
+the current scripts include:
+
+```text
+rlbench/train/json/train_action_chunk1_sumpos_lastrot.json
+rlbench/train/json/train_action_chunk1_sumpos_lastrot_statistics.json
+rlbench/train/json/cosmos_text_cache_rlbench_keyframe/
+rlbench/train/images/
+```
+
+The JSON references image paths such as:
+
+```text
+/mnt/nas/zhangyiming/database/rlbench/train/images/...
+```
+
+### LIBERO
+
+Expected target path:
+
+```text
+/mnt/nas/zhangyiming/database/data/libero_training_data_last05_lastest/libero_spatial_20hz_224_dual
+```
+
+Included files/directories:
+
+```text
+train_with_atomic_action.json
+train.json
+train_rewritten_prompts.json
+train_statistics.json
+videos/
+cosmos_text_cache/
+cosmos_text_cache_raw_full_concat/
+cosmos_text_cache_rewritten_prompts_raw_full_concat/
+```
+
+The JSON references video paths such as:
+
+```text
+/mnt/nas/zhangyiming/database/data/libero_training_data_last05_lastest/libero_spatial_20hz_224_dual/videos/...
+```
+
+## Main Training Entrypoints
+
+RLBench:
+
+```bash
+cd /mnt/nas/zhangyiming/last05_beta/last05_mot2_action
+bash scripts/train_mot2_rlbench_keyframe.sh
+```
+
+LIBERO:
+
+```bash
+cd /mnt/nas/zhangyiming/last05_beta/last05_mot2_action
+bash scripts/train_mot2.sh
+```