http://sn.1w6.org/file/mk-20161003T172519-mngf6lb.html

It looks very capable (more than when I tested some apps several years ago), and checks nearly all the boxes. It definitely has good ways to organize notes and not be forced into one way of doing it. But for my *current* requirements it fails on one important thing: there's no way to 'drag' a remote image into a document: nothing happens, you get not even a link. When "inserting" an image, you can oly navigate to a local file. and entering markup syntax (double curly brackets), you get a "broken" image - not just in the app: when exportig to HTML the (remote) image URL gets mangled with a prefix making it into a local "relative" or "absolute" path - which of course doesn't work. I looked at docs and plugins, and searched, but could not find any way to solve that. Wierd. In the end, I've decided to just install DokuWiki locally (with nginx as web server). And another browser (besides Firefox) to use it with.