diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..373eeab
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,6 @@
+[submodule "phenny"]
+	path = phenny
+	url = git://github.com/sbp/phenny.git
+[submodule "translation-server"]
+	path = translation-server
+	url = git://github.com/zotero/translation-server.git
diff --git a/phenny b/phenny
new file mode 160000
index 0000000..7752b56
--- /dev/null
+++ b/phenny
@@ -0,0 +1 @@
+Subproject commit 7752b56cc2f8325883bad052ad31bf2e7feb706e
diff --git a/translation-server b/translation-server
new file mode 160000
index 0000000..5ddcd9c
--- /dev/null
+++ b/translation-server
@@ -0,0 +1 @@
+Subproject commit 5ddcd9ceb8b68d0ba43ca266afcda18942ad00f0