Earlier quoted context omitted.
I just do git push to post, the site generator does the rest (including diffs and optimized change rendering in my case). You can git push from anything these days, including an iPad (which is basically what I do). (edit: why the downvotes?)
Yes, that is what I said. It can be done, but it is not as trivial as posting on a wordpress-based blog. You have to setup some sort of CI/CD workflow and be able to do git stuff from other devices. It is up to the OP if they want to go through that route.
Still, you're right that doing git stuff on other devices can be a bit annoying. A web interface might be a lot more convenient if you want to edit your blog WYSIWYG on the fly.