This is a very good tool. I'll try it very soon, it's a good and safer alternative to Kobo File Monitor. Some random suggestions:
- please do not overwrite directly rcS, it's not safe. Use yoq's trick instead (look at Night Mode under etc/udev) and move what you can in a separate script.
- You also overwrite also /usr/local/Kobo/udev/usb. Can't you rename your "usb" exec?
Thank you and good Kobo

!