That would allow it to publish to to several dozen different CMSes including WordPress, Drupal, WithKnown, Craft, Jekyll, Kirby, Hugo, and Micro.Blog among a growing set of others.
I know that iA Writer recently added Micropub support to allow people to use their tool to publish this way. Sadly they’ve only got it working as Mac/iOS clients and not as a web client, which is something at which ProseMirror might excel.
iA Writer for Windows came out one year ago. We launched version 2 and called it 1.1. It comes with a cleaner UI, sweeter typography, tighter templates, better word export, and… …a very powerful file library. At first sight, it just looks like we’ve closed a gap to its older sibling, the Mac app.