diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..6c69223
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "third_party/tomlplusplus"]
+	path = third_party/tomlplusplus
+	url = https://github.com/marzer/tomlplusplus.git
diff --git a/third_party/tomlplusplus b/third_party/tomlplusplus
new file mode 160000
index 0000000..3017243
--- /dev/null
+++ b/third_party/tomlplusplus
@@ -0,0 +1 @@
+Subproject commit 30172438cee64926dc41fdd9c11fb3ba5b2ba9de