diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..963fe98
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "external/moodycamel"]
+	path = external/moodycamel
+	url = https://github.com/cameron314/concurrentqueue
diff --git a/external/moodycamel b/external/moodycamel
new file mode 160000
index 0000000..65d6970
--- /dev/null
+++ b/external/moodycamel
@@ -0,0 +1 @@
+Subproject commit 65d6970912fc3f6bb62d80edf95ca30e0df85137