How about Sozi? its an extension for inkscape - http://sozi.baierouge.fr/

seltzered_ · on Oct 28, 2017

This is pretty fascinating, the about page sums it up http://sozi.baierouge.fr/pages/10-about.html .

Guessing it may also be possible to do some of the heavy lifting in another vector drawing app (e.g. sketch) then finish the presentation aspects in Inkscape/Sozi

jldugger · on Oct 29, 2017

Came to recommend this. It's more or less WSYWIG, and while you'll want to learn Inkscape first, it has its own set of tutorials for Sozi specifics.