diff --git a/wip-duuqnd/user-side-compiler/interface.lisp b/wip-duuqnd/user-side-compiler/interface.lisp
index 99534b9..e7b1f64 100644
--- a/wip-duuqnd/user-side-compiler/interface.lisp
+++ b/wip-duuqnd/user-side-compiler/interface.lisp
@@ -247,3 +247,8 @@
 (defun compile-and-send-to-c64 (string)
   (let ((bytes (compile-string-to-bytes string :print-ir-p t)))
     (send-data-to-c64 (coerce bytes 'vector))))
+
+#|
+Required to make the serial port behave even remotely correctly:
+stty -F /dev/ttyACM0 -brkint -icrnl -imaxbel -opost -onlcr -isig -icanon -iexten -echo -echoe -echok -echoctl -echoke 9600
+|#