diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..6ff8b0d
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "tools/url-editor"]
+	path = tools/url-editor
+	url = https://git.reim.ar/Reimar/url-editor
diff --git a/tools/url-editor b/tools/url-editor
new file mode 160000
index 0000000..7327876
--- /dev/null
+++ b/tools/url-editor
@@ -0,0 +1 @@
+Subproject commit 7327876db294ffe2febee1f9ef3ba76e92bfe895