diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..361b0a1
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "re2oapi"]
+	path = re2oapi
+	url = https://gitlab.federez.net/re2o/re2oapi.git
diff --git a/re2oapi b/re2oapi
new file mode 160000
index 0000000..f151d48
--- /dev/null
+++ b/re2oapi
@@ -0,0 +1 @@
+Subproject commit f151d483dc1c9bd59b18ea283ab734c91a72e18c