diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..d86ebac
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,6 @@
+[submodule "vendor/nativefiledialog-extended"]
+	path = vendor/nativefiledialog-extended
+	url = https://github.com/btzy/nativefiledialog-extended
+[submodule "open_engine/vendor/nativefiledialog-extended"]
+	path = open_engine/vendor/nativefiledialog-extended
+	url = https://github.com/btzy/nativefiledialog-extended
diff --git a/open_engine/vendor/nativefiledialog-extended b/open_engine/vendor/nativefiledialog-extended
new file mode 160000
index 0000000..5137e5e
--- /dev/null
+++ b/open_engine/vendor/nativefiledialog-extended
@@ -0,0 +1 @@
+Subproject commit 5137e5ee19b57f0441c51fed25ffe6d7858fec10
diff --git a/vendor/ImGuizmo b/vendor/ImGuizmo
new file mode 160000
index 0000000..a15acd8
--- /dev/null
+++ b/vendor/ImGuizmo
@@ -0,0 +1 @@
+Subproject commit a15acd87a3f3241a29ea1363ceafc680dca3a96b