Sorry, you never will! By 'crude' I really meant it; and not just the UI, but the code. I thrashed it out as a kind of spike and it won't ever be seen by anyone but me (and even I only look reluctantly).

Writing a proper Android version is currently tying for first place with a micro.blog (http://micro.blog) client for my next project.

Should you really be interested in a Linux version, Quiver's author has written up the json format: https://github.com/HappenApps/Quiver/wiki/Quiver-Data-Format. It seems simple and sane.

I also like the general notion of "Standard Notes" (https://standardnotes.org/), but can't see text-only notes becoming 'standard' in the 21st century.

Thank you. In fact the Quiver data storage seems very easy to work with.