Simple, elegant, and does the job.
A few improvements I can think of:
Let us use the mouse wheel on the icon of the addon to increase/decrease speed.
Let us customize the keyboard shortcuts, or disable them completely.
These aren't must-haves, but would be nice.
Still, 5-star, and thank you.

Works seamlessly on my M1 Air. Very minimal. Non intrusive. Customizable. The developer is very responsive. Let's get this guy a beer