So I have the #pinephone dock. I’ve seen it work with the pinephone. It is fidgety to be sure. It sometimes works fine, though with occasional odd display artifacts. I was able to use it to set up Firefox since that isn’t really mobile-friendly yet. But the dock doesn’t always seem to connect. It isn’t clear to me if there is a right order to connect things, or timing matters, or something.

Will experiment/research more later.