diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..2626bc4
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["setuptools>=45", "wheel", "pip"]
+build-backend = "setuptools.build_meta"
diff --git a/setup.cfg b/setup.cfg
new file mode 100644
index 0000000..e5f9f87
--- /dev/null
+++ b/setup.cfg
@@ -0,0 +1,20 @@
+[metadata]
+name = comfyui_idl
+version = attr: comfyui_idl.__version__
+author = Frost Ming
+author_email = frost@bentoml.com
+description = ComfyUI Interface Definition Language
+long_description = file: README.md
+long_description_content_type = text/markdown
+url = https://github.com/bentoml/ComfyUI-IDL
+classifiers =
+    Programming Language :: Python :: 3
+    License :: OSI Approved :: MIT License
+    Operating System :: OS Independent
+[options]
+package_dir = src
+packages = find:
+python_requires = >=3.8
+
+[options.packages.find]
+where = src
diff --git a/src/comfyui_idl/__init__.py b/src/comfyui_idl/__init__.py
new file mode 100644
index 0000000..459c402
--- /dev/null
+++ b/src/comfyui_idl/__init__.py
@@ -0,0 +1,19 @@
+__version__ = "0.1.0"
+
+
+from utils import (
+    parse_workflow,
+    generate_input_model,
+    populate_workflow_inputs,
+    configure_workflow_outputs,
+    retrieve_workflow_outputs,
+)
+
+
+__all__ = [
+    "parse_workflow",
+    "generate_input_model",
+    "populate_workflow_inputs",
+    "configure_workflow_outputs",
+    "retrieve_workflow_outputs",
+]
diff --git a/comfyui_idl/__init__.py b/src/comfyui_idl/utils.py
similarity index 96%
rename from comfyui_idl/__init__.py
rename to src/comfyui_idl/utils.py
index 254d00d..a23632b 100644
--- a/comfyui_idl/__init__.py
+++ b/src/comfyui_idl/utils.py
@@ -1,6 +1,7 @@
 from typing import TYPE_CHECKING
 import copy
 
+__version__ = "0.1.0"
 
 if TYPE_CHECKING:
     from pydantic import BaseModel
@@ -69,7 +70,7 @@ def configure_workflow_outputs(workflow: dict, output_path: Path) -> dict:
     return workflow_copy
 
 
-def retrieve_workflow_output(workflow: dict, output_path: Path) -> Path:
+def retrieve_workflow_outputs(workflow: dict, output_path: Path) -> Path:
     """
     Get the output file by name from the workflow
     """