diff --git a/.gitmodules b/.gitmodules
index 2e07957..371fafd 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -491,3 +491,6 @@
 [submodule "digiline_global_memory"]
 	path = digiline_global_memory
 	url = https://github.com/BuckarooBanzay/digiline_global_memory
+[submodule "tubetool"]
+	path = tubetool
+	url = https://github.com/S-S-X/tubetool.git
diff --git a/tubetool b/tubetool
new file mode 160000
index 0000000..adeab98
--- /dev/null
+++ b/tubetool
@@ -0,0 +1 @@
+Subproject commit adeab98aaeaa1729a2ddc2fbe09ea517d6dac69c