diff --git a/.gitignore b/.gitignore
index 2248efa..815012b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,3 @@
 **/__pycache__/*
 
 **/.DS_Store
-private
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..4b0b5ff
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "private"]
+	path = private
+	url = ssh://git@git.a09.uk:48765/alex/alex-environ-private.git
diff --git a/private b/private
new file mode 160000
index 0000000..c725f9d
--- /dev/null
+++ b/private
@@ -0,0 +1 @@
+Subproject commit c725f9dab354501d5baf57ca9665310703a02754