diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..f372c06
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,6 @@
+[submodule "test-repo-base"]
+	path = test-repo-base
+	url = https://git.sw3.cz/kamikaze/test-repo-base.git
+[submodule "test-repo-reduced"]
+	path = test-repo-reduced
+	url = https://git.sw3.cz/kamikaze/test-repo-reduced.git
diff --git a/test-repo-base b/test-repo-base
new file mode 160000
index 0000000..e0c7e2a
--- /dev/null
+++ b/test-repo-base
@@ -0,0 +1 @@
+Subproject commit e0c7e2a72579e24657c05e875201011d2b48bf94
diff --git a/test-repo-reduced b/test-repo-reduced
new file mode 160000
index 0000000..e0c7e2a
--- /dev/null
+++ b/test-repo-reduced
@@ -0,0 +1 @@
+Subproject commit e0c7e2a72579e24657c05e875201011d2b48bf94