diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..81f7605
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,4 @@
+[submodule "modules/boot_systemd"]
+	path = modules/boot_systemd
+	url = ssh://git.joshuabell.xyz:3032/dotfiles
+	branch = mod_boot_systemd
diff --git a/modules/boot_grub/flake.nix b/modules/boot_grub/flake.nix
deleted file mode 100644
index 34dbc58..0000000
--- a/modules/boot_grub/flake.nix
+++ /dev/null
@@ -1,15 +0,0 @@
-{
-  inputs = {
-  };
-
-  outputs =
-    {
-      self,
-      ...
-    }:
-    {
-      nixosModules = {
-        default = { };
-      };
-    };
-}
diff --git a/modules/boot_systemd b/modules/boot_systemd
new file mode 160000
index 0000000..3155d8a
--- /dev/null
+++ b/modules/boot_systemd
@@ -0,0 +1 @@
+Subproject commit 3155d8a57286aefb835476617ba6d4df92b83013