diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..67c1b8c
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,6 @@
+[submodule "lib/Unity"]
+	path = lib/Unity
+	url = gitlab@git.stubbe.rocks:kttd/3rd-party-libs/Unity.git
+[submodule "lib/fff"]
+	path = lib/fff
+	url = gitlab@git.stubbe.rocks:kttd/3rd-party-libs/fff.git
\ No newline at end of file
diff --git a/lib/Unity b/lib/Unity
new file mode 160000
index 0000000..b4aca70
--- /dev/null
+++ b/lib/Unity
@@ -0,0 +1 @@
+Subproject commit b4aca70fd9e0ddf0afbdafb1b826f5edcfc1049b
diff --git a/lib/fff b/lib/fff
new file mode 160000
index 0000000..719a9bb
--- /dev/null
+++ b/lib/fff
@@ -0,0 +1 @@
+Subproject commit 719a9bb5ab4c059b52038b9576632a6e51923fba