diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000000000000000000000000000000000000..1c6258e2b866d826ff118cbcfc5670bdd18401c3
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "owlca"]
+	path = owlca
+	url = https://gitlab.sauerburger.com/frank/owl-ca.git
diff --git a/owlca b/owlca
new file mode 160000
index 0000000000000000000000000000000000000000..f125a6ab5824c32d0e6662bcecb7bb92b391d11d
--- /dev/null
+++ b/owlca
@@ -0,0 +1 @@
+Subproject commit f125a6ab5824c32d0e6662bcecb7bb92b391d11d