diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..2034a46
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "multi"]
+	path = multi
+	url = https://github.com/rayaman/multi.git
diff --git a/multi b/multi
new file mode 160000
index 0000000..d36204c
--- /dev/null
+++ b/multi
@@ -0,0 +1 @@
+Subproject commit d36204c87f5c63a4e6f7510040e495bbab3de2d1