[evangow]

I build marketing software for authors (called StoryOrigin if you want to look it up for credibility purposes), so I'm quite familiar with the space.

Exactly what you've described is already out there: https://www.atticus.io/ (released last year - I have no affiliation.)

[cocacola1]

This is the first I've heard of it. Looks neat. I do like the Front/Body/Back Matter view in the sidebar.