diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000000000000000000000000000000000000..1b24af5c499c84a5332935132bc6821aa1f55b3f
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "nucleo-64-rtfm"]
+	path = nucleo-64-rtfm
+	url = git@gitlab.henriktjader.com:pln/nucleo-64-rtfm.git
diff --git a/nucleo-64-rtfm b/nucleo-64-rtfm
new file mode 160000
index 0000000000000000000000000000000000000000..6d238c9cc1ac561698b43c542a73dc534e7d7ea4
--- /dev/null
+++ b/nucleo-64-rtfm
@@ -0,0 +1 @@
+Subproject commit 6d238c9cc1ac561698b43c542a73dc534e7d7ea4