diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..34af6e7
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "data/nix"]
+	path = data/nix
+	url = https://github.com/NixOS/nix
diff --git a/data/nix b/data/nix
new file mode 160000
index 0000000..71a5161
--- /dev/null
+++ b/data/nix
@@ -0,0 +1 @@
+Subproject commit 71a5161365f40699092e491bbff88473237fc432