Yes, its operation on MacOS needs some attention.

In fact I've created the notepad as a demo project for Sciter SDK (https://sciter.com). The same as Sciter Notes: https://notes.sciter.com

It is just that at some point someone asked me to make distribution so I've created that web site.

Another question was to understand: donation-ware, is it a sustainable solution. Apparently it is not - donation does not even cover sums asked by Apple for allowance to develop software for their platform.