diff --git a/.gitmodules b/.gitmodules
index e69de29b..c32def4c 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -0,0 +1,4 @@
+[submodule "rust-jack"]
+	path = rust-jack
+	url = git@codeberg.org:unspeaker/rust-jack.git
+	branch = timebase
diff --git a/rust-jack b/rust-jack
new file mode 160000
index 00000000..29e8b0be
--- /dev/null
+++ b/rust-jack
@@ -0,0 +1 @@
+Subproject commit 29e8b0be4b34e4f0f669d34cecf9a4a638d27739