diff --git a/src/llamafactory/cli.py b/src/llamafactory/cli.py
index 3aa51535..6fb4b236 100644
--- a/src/llamafactory/cli.py
+++ b/src/llamafactory/cli.py
@@ -25,12 +25,13 @@ USAGE = (
     + "| Usage:                                                             |\n"
     + "|   llamafactory-cli api -h: launch an OpenAI-style API server       |\n"
     + "|   llamafactory-cli chat -h: launch a chat interface in CLI         |\n"
-    + "|   llamafactory-cli eval -h: evaluate models                        |\n"
     + "|   llamafactory-cli export -h: merge LoRA adapters and export model |\n"
     + "|   llamafactory-cli train -h: train models                          |\n"
     + "|   llamafactory-cli webchat -h: launch a chat interface in Web UI   |\n"
     + "|   llamafactory-cli webui: launch LlamaBoard                        |\n"
+    + "|   llamafactory-cli env: show environment info                      |\n"
     + "|   llamafactory-cli version: show version info                      |\n"
+    + "| Hint: You can use `lmf` as a shortcut for `llamafactory-cli`.      |\n"
     + "-" * 70
 )
 
@@ -48,9 +49,7 @@ def _run_chat():
 
 
 def _run_eval():
-    from .eval.evaluator import run_eval
-
-    return run_eval()
+    raise NotImplementedError("Evaluation will be deprecated in the future.")
 
 
 def _export_model():
diff --git a/src/llamafactory/extras/env.py b/src/llamafactory/extras/env.py
index 6b676a61..82d89b69 100644
--- a/src/llamafactory/extras/env.py
+++ b/src/llamafactory/extras/env.py
@@ -15,22 +15,22 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import os
-import platform
-
-import accelerate
-import datasets
-import peft
-import torch
-import transformers
-import trl
-from transformers.utils import is_torch_cuda_available, is_torch_npu_available
-
 
 VERSION = "0.9.4.dev0"
 
 
 def print_env() -> None:
+    import os
+    import platform
+
+    import accelerate
+    import datasets
+    import peft
+    import torch
+    import transformers
+    import trl
+    from transformers.utils import is_torch_cuda_available, is_torch_npu_available
+
     info = {
         "`llamafactory` version": VERSION,
         "Platform": platform.platform(),
diff --git a/src/llamafactory/launcher.py b/src/llamafactory/launcher.py
index 169b042a..8d1435cf 100644
--- a/src/llamafactory/launcher.py
+++ b/src/llamafactory/launcher.py
@@ -12,10 +12,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from llamafactory.train.tuner import run_exp  # use absolute import
-
 
 def launch():
+    from llamafactory.train.tuner import run_exp  # use absolute import
+
     run_exp()
 
 
diff --git a/src/llamafactory/v1/__init__.py b/src/llamafactory/v1/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/src/llamafactory/v1/core/__init__.py b/src/llamafactory/v1/core/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/src/llamafactory/v1/core/base_trainer.py b/src/llamafactory/v1/core/base_trainer.py
new file mode 100644
index 00000000..e69de29b
diff --git a/src/llamafactory/v1/core/chat_sampler.py b/src/llamafactory/v1/core/chat_sampler.py
new file mode 100644
index 00000000..e69de29b
diff --git a/src/llamafactory/v1/core/data_loader.py b/src/llamafactory/v1/core/data_loader.py
new file mode 100644
index 00000000..e69de29b
diff --git a/src/llamafactory/v1/core/model_engine.py b/src/llamafactory/v1/core/model_engine.py
new file mode 100644
index 00000000..e69de29b
diff --git a/src/llamafactory/v1/launcher.py b/src/llamafactory/v1/launcher.py
new file mode 100644
index 00000000..e69de29b
diff --git a/src/llamafactory/v1/plugins/__init__.py b/src/llamafactory/v1/plugins/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/src/llamafactory/v1/plugins/data_plugins/__init__.py b/src/llamafactory/v1/plugins/data_plugins/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/src/llamafactory/v1/plugins/data_plugins/converter.py b/src/llamafactory/v1/plugins/data_plugins/converter.py
new file mode 100644
index 00000000..e69de29b
diff --git a/src/llamafactory/v1/plugins/model_plugins/__init__.py b/src/llamafactory/v1/plugins/model_plugins/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/src/llamafactory/v1/plugins/model_plugins/peft.py b/src/llamafactory/v1/plugins/model_plugins/peft.py
new file mode 100644
index 00000000..e69de29b
diff --git a/src/llamafactory/v1/plugins/sampler_plugins/__init__.py b/src/llamafactory/v1/plugins/sampler_plugins/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/src/llamafactory/v1/plugins/sampler_plugins/vllm.py b/src/llamafactory/v1/plugins/sampler_plugins/vllm.py
new file mode 100644
index 00000000..e69de29b
diff --git a/src/llamafactory/v1/plugins/trainer_plugins/__init__.py b/src/llamafactory/v1/plugins/trainer_plugins/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/src/llamafactory/v1/plugins/trainer_plugins/accelerate.py b/src/llamafactory/v1/plugins/trainer_plugins/accelerate.py
new file mode 100644
index 00000000..e69de29b
diff --git a/src/llamafactory/v1/trainers/__init__.py b/src/llamafactory/v1/trainers/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/src/llamafactory/v1/trainers/dpo_trainer.py b/src/llamafactory/v1/trainers/dpo_trainer.py
new file mode 100644
index 00000000..e69de29b
diff --git a/src/llamafactory/v1/trainers/rm_trainer.py b/src/llamafactory/v1/trainers/rm_trainer.py
new file mode 100644
index 00000000..e69de29b
diff --git a/src/llamafactory/v1/trainers/sft_trainer.py b/src/llamafactory/v1/trainers/sft_trainer.py
new file mode 100644
index 00000000..e69de29b