diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..f3158ce
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "third_party/SDL3"]
+	path = third_party/SDL3
+	url = https://github.com/libsdl-org/SDL.git
diff --git a/third_party/SDL3 b/third_party/SDL3
new file mode 160000
index 0000000..61bf708
--- /dev/null
+++ b/third_party/SDL3
@@ -0,0 +1 @@
+Subproject commit 61bf7087f5ad4f1fdd418e58adc023fd8252e678