diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..860a5b5
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,6 @@
+[submodule "hardware/mcu_board/library"]
+	path = hardware/mcu_board/library
+	url = https://git.mars3142.dev/mars3142/kicad_library.git
+[submodule "hardware/light_board/library"]
+	path = hardware/light_board/library
+	url = https://git.mars3142.dev/mars3142/kicad_library.git
diff --git a/hardware/light_board/library b/hardware/light_board/library
new file mode 160000
index 0000000..a161260
--- /dev/null
+++ b/hardware/light_board/library
@@ -0,0 +1 @@
+Subproject commit a16126000cb493a4e6b738b0a94b0fdf86c20025
diff --git a/hardware/mcu_board/library b/hardware/mcu_board/library
new file mode 160000
index 0000000..a161260
--- /dev/null
+++ b/hardware/mcu_board/library
@@ -0,0 +1 @@
+Subproject commit a16126000cb493a4e6b738b0a94b0fdf86c20025