diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..95b884c
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,6 @@
+[submodule "tigris"]
+	path = tigris
+	url = https://github.com/tigris-mt/tigris
+[submodule "simple_sunburn"]
+	path = simple_sunburn
+	url = https://github.com/tigris-mt/simple_sunburn
diff --git a/simple_sunburn b/simple_sunburn
new file mode 160000
index 0000000..f654207
--- /dev/null
+++ b/simple_sunburn
@@ -0,0 +1 @@
+Subproject commit f6542073edfa4185ab285fb79e44754242fa5893
diff --git a/tigris b/tigris
new file mode 160000
index 0000000..40d63c5
--- /dev/null
+++ b/tigris
@@ -0,0 +1 @@
+Subproject commit 40d63c5f470d8ce862db5d91154fa2250de024ec