diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..640a5d7
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "haocrowd"]
+	path = haocrowd
+	url = git@git.dhao2001.com:ld/haocrowd.git
diff --git a/haocrowd b/haocrowd
new file mode 160000
index 0000000..dba4698
--- /dev/null
+++ b/haocrowd
@@ -0,0 +1 @@
+Subproject commit dba4698ad43e6294e780cea243490dd5f00b9bc0