diff --git a/AI/dev/DSL/readme.md b/AI/dev/DSL/readme.md
new file mode 100644
index 00000000..5137808c
--- /dev/null
+++ b/AI/dev/DSL/readme.md
@@ -0,0 +1,2 @@
+## also
+- https://github.com/bpmbpm/doc/tree/main/LD2/DSL