diff --git a/requirements-dev.txt b/requirements-dev.txt
new file mode 100644
index 0000000..de1be05
--- /dev/null
+++ b/requirements-dev.txt
@@ -0,0 +1,17 @@
+certifi>=2023.7.22
+charset-normalizer==2.1.1
+commonmark==0.9.1
+idna>=3.4
+pandas>=0.19.2
+Pygments>=2.13.0
+python-dateutil>=2.8.2
+pytz>=2022.2.1
+requests>=2.28.1
+rich>=12.5.1
+six>=1.16.0
+urllib3>=1.26.12
+openpyxl>=3.0.10
+numpy>=1.5.0
+pytest>=8.1.0
+ruff>=0.5.1
+tox 
\ No newline at end of file
diff --git a/evdspy_example.py b/z_examples/evdspy_example.py
similarity index 100%
rename from evdspy_example.py
rename to z_examples/evdspy_example.py
diff --git a/evdspy_tes_t2.py b/z_examples/evdspy_tes_t2.py
similarity index 100%
rename from evdspy_tes_t2.py
rename to z_examples/evdspy_tes_t2.py
diff --git a/main_menu.py b/z_examples/main_menu.py
similarity index 100%
rename from main_menu.py
rename to z_examples/main_menu.py