diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 000000000..8d3a6f221
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "work/Paper"]
+	path = work/Paper
+	url = https://github.com/Akarin-project/Paper.git
diff --git a/work/Paper b/work/Paper
new file mode 160000
index 000000000..62ce9910f
--- /dev/null
+++ b/work/Paper
@@ -0,0 +1 @@
+Subproject commit 62ce9910f24159fc1a4a636b0f9b3c2025958d23