diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000000000000000000000000000000000000..c31124afac5ab8677fd68a6de0288da505caab80
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "lib/nng"]
+	path = lib/nng
+	url = https://github.com/nanomsg/nng.git
diff --git a/lib/nng b/lib/nng
new file mode 160000
index 0000000000000000000000000000000000000000..6ec4107907552db927be8601aed97b5a4b83d33d
--- /dev/null
+++ b/lib/nng
@@ -0,0 +1 @@
+Subproject commit 6ec4107907552db927be8601aed97b5a4b83d33d