diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..f87dc9f
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,6 @@
+[submodule "test_data"]
+	path = test_data
+	url = https://github.com/ptrkrysik/test_data.git
+[submodule "examples"]
+	path = examples
+	url = https://github.com/ptrkrysik/examples.git