diff --git a/.gitmodules b/.gitmodules
index e69de29..12232b0 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "themes/hugo-theme-stack"]
+	path = themes/hugo-theme-stack
+	url = https://github.com/CaiJimmy/hugo-theme-stack/
diff --git a/themes/hugo-theme-stack b/themes/hugo-theme-stack
new file mode 160000
index 0000000..839fbd0
--- /dev/null
+++ b/themes/hugo-theme-stack
@@ -0,0 +1 @@
+Subproject commit 839fbd0ecb5bba381f721f31f5195fb6517fc260