diff --git a/py-kivy/design.md b/py-kivy/DESIGN-DOC.md
similarity index 100%
rename from py-kivy/design.md
rename to py-kivy/DESIGN-DOC.md
diff --git a/py-kivy/pos_system/__init__.py b/py-kivy/pos_system/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/py-kivy/fastapi_server.py b/py-kivy/pos_system/fastapi_server.py
similarity index 100%
rename from py-kivy/fastapi_server.py
rename to py-kivy/pos_system/fastapi_server.py
diff --git a/py-kivy/pos.py b/py-kivy/pos_system/pos.py
similarity index 100%
rename from py-kivy/pos.py
rename to py-kivy/pos_system/pos.py
diff --git a/py-kivy/pyproject.toml b/py-kivy/pyproject.toml
index 20b4610..1c2f433 100644
--- a/py-kivy/pyproject.toml
+++ b/py-kivy/pyproject.toml
@@ -1,10 +1,10 @@
 [tool.poetry]
-name = "py-kivy"
+name = "pos_system"
 version = "0.1.0"
 description = ""
 authors = ["Jasen Qin <capitalswine@gmail.com>"]
 readme = "README.md"
-package-mode = false
+# package-mode = false
 
 [tool.poetry.dependencies]
 python = "^3.12"
diff --git a/py-kivy/setup_test_db.py b/py-kivy/tests/setup_test_db.py
similarity index 100%
rename from py-kivy/setup_test_db.py
rename to py-kivy/tests/setup_test_db.py
diff --git a/py-kivy/test_fastapi.py b/py-kivy/tests/test_fastapi.py
similarity index 100%
rename from py-kivy/test_fastapi.py
rename to py-kivy/tests/test_fastapi.py
diff --git a/py-kivy/trials_py.ipynb b/py-kivy/tests/trials_py.ipynb
similarity index 100%
rename from py-kivy/trials_py.ipynb
rename to py-kivy/tests/trials_py.ipynb