diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..615b969
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "web/vendor/foliate-js"]
+	path = web/vendor/foliate-js
+	url = https://github.com/john-okeefe/foliate-js.git
diff --git a/web/vendor/foliate-js b/web/vendor/foliate-js
new file mode 160000
index 0000000..76dcd8f
--- /dev/null
+++ b/web/vendor/foliate-js
@@ -0,0 +1 @@
+Subproject commit 76dcd8f0f7ccabd59199fc5eddbe012d8d463b18