diff --git a/scripts/docker/README.md b/scripts/docker/README.md
index 8096396e..39f0ccb4 100644
--- a/scripts/docker/README.md
+++ b/scripts/docker/README.md
@@ -72,3 +72,8 @@ or using commandline arguments,
 # build the images yourself
 
 put `copyparty-sfx.py` into `../dist/` (or [build that from scratch](../../docs/devnotes.md#just-the-sfx) too) then run `make`
+
+
+# notes
+
+* currently unable to play [tracker music](https://en.wikipedia.org/wiki/Module_file) (mod/s3m/xm/it/...) -- will be fixed in june 2023 (Alpine 3.18)