diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..d0d5195
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "src/glam"]
+	path = src/glam
+	url = git@e.coding.net:g-ldyi2063/dev/glam.git
diff --git a/src/glam b/src/glam
new file mode 160000
index 0000000..a0221e7
--- /dev/null
+++ b/src/glam
@@ -0,0 +1 @@
+Subproject commit a0221e728005743667d32f22cd83d4a35514aadc