The current example, index.html uses currentzoom.js locally, i.e. it's downloaded and called. That makes sense to offer. We will make the repo public, though, and so we also should have an example of how to add the zoom widget with just a simple call to the currentzoom.js on github. Can you please make such an example, even if at the moment it will not work.

Is there a motivation to keep the filename index.html, or would something like examplelocal.html and exampleremote.html be good?

Can you please also fill in the readme so we can make it public?

Can the default be to show fractional zoom levels?