diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 00000000..b809be84
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "CoPO"]
+	path = CoPO
+	url = https://github.com/cncPomper/CoPO
diff --git a/CoPO b/CoPO
new file mode 160000
index 00000000..86975e92
--- /dev/null
+++ b/CoPO
@@ -0,0 +1 @@
+Subproject commit 86975e924df9f7d0bee701955228e6855ae3f9ff