I do still want the "edit the site from the site" experience. I very much miss the site I had when I was doing BT support which was exactly (and really only) that - a textarea with three code for the page inside. (Written in Perl, I think).

Editing through (something like) GitLab IDE is not the same thing. Ignoring that it needs a whole other service (I could self host), it's the commit-build-deploy pattern that's wrong. I want to click "save" and see my changes when the page loads.

Trick is, these days, to pick a language where that works well.