diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000000000000000000000000000000000000..1cb8fac7da31af45dcd96bfeb13c013ce9e74a1f
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "compose-styles"]
+	path = compose-styles
+	url = https://gitlab.inria.fr/compose/include/compose-styles.git
diff --git a/compose-styles b/compose-styles
new file mode 160000
index 0000000000000000000000000000000000000000..6442d7f14f392036276bf025913a2d44b73d1b0b
--- /dev/null
+++ b/compose-styles
@@ -0,0 +1 @@
+Subproject commit 6442d7f14f392036276bf025913a2d44b73d1b0b