diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..267ae44
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "yat"]
+	path = yat
+	url = https://github.com/jorgen/yat
diff --git a/yat b/yat
new file mode 160000
index 0000000..5e31b36
--- /dev/null
+++ b/yat
@@ -0,0 +1 @@
+Subproject commit 5e31b36113629277b8e5e108528d088e0acb4680