diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..3c650e1
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "beetfs"]
+	path = beetfs
+	url = git@github.com:LichHunter/beetfs.git
diff --git a/beetfs b/beetfs
new file mode 160000
index 0000000..f0a83df
--- /dev/null
+++ b/beetfs
@@ -0,0 +1 @@
+Subproject commit f0a83df190254e737c9859b52ad324e502579849