miniblog.

I'm not sure if I should use the term "text diff" or "textual diff" to refer to a conventional, line-oriented diff of text in difftastic. Any opinions? Which seems clearer to you?

One cute feature of markdown I'd not noticed before: there's no syntax for images *without* a description (i.e. alt text).  https://spec.commonmark.org/0.31.2/#images

There are *so many* ways that reading a text file can fail. Maybe it doesn't exist, it's a broken symlink, it's actually a directory, it's not the encoding you expected, or perhaps you just don't have the correct permissions. Reporting good errors is surprisingly labour intensive.