One of the great curses in technology is that, if you’ve ever built a content management system, especially a blogging tool, you can never stop building better ones in your head, even though the actual products in reality never get any better. Here @mathowie falls down the rabbit hole again. https://a.wholelottanothing.org/a-blueprint-of-my-dream-blogging-cms/
Ideas for my dream blogging CMS

Ever since I changed over from Wordpress to Ghost to power this site, I've gotten emails and replies asking me if Ghost is really good and worth making the jump from any other blogging engines. My answer is this: it's currently the least bad one out there, but it is

A Whole Lotta Nothing
@anildash @mathowie
man do I ever hate, hate, HATE adaptive UIs. I have used many & have yet to see one that didn't make things harder for me on the average, vs making things easier on one task maybe 30% of the time. The added cognitive load of trying to figure out where the feature I wanted has gone just leaves me irritated until I sigh & accept it as unchangeable. But I never like it.
@anildash @mathowie
...THAT HAVING BEEN SAID, of the CMS i've worked with the one that comes CLOSEST to BEING ABLE TO* fit these requirements is Drupal 7** [& potentially its fork, Backdrop, which I haven't used].
But D7/Backdrop have very little mindshare at this point.
_
*You'd have to customize the hell out of it, but it's designed for that.
**D8 is an utter disaster as anything but a corporate-scope tool. D7 can still run well on commodity hosting & can be implemented with basic skills.