I'd have to set up the WP instance and maintain it.
(NB: this is in response to the question Why not just use wordpress + wysiwyg editor similar to *docs, and you're done?.)
This is a good of an explanation as any for local-first software.
A natural response (to potatolicious's comment) is, "Well, somebody has to maintain these no-code Web apps, too, right? If there's someone in the loop maintaining something, the question still stands; wouldn't it make more sense for that something to be e.g. a WordPress instance?"
Answer: yeah, the no-code Web app model isn't so great, either. If service maintenance is a problem, it should be identified as such and work done to eliminate it. What that would look like is that the sort of useful work that those Web apps are capable of doing should be captured in a document that you can copy to your local machine and make full use of the processes and procedures that it describes in perpetuity, regardless of whether someone is able to continue propping up a third-party service.