It might be nice to have a way of giving more context, which is what the message option was good for in rofi. Not knocking it though, I am a happy fuzzel user.
The script is there in the post, but I haven’t tried it yet. It would be nice if fuzzel had a message option, like rofi, so that key information could be displayed in the passphrases request; that s is what pinentry-rofi uses.
I do recommend emacs though. It is not the greatest editor, but it is an amazing experience. It is such an amazing experiment, that has an extensive set of different ways of looking at content and code - it will change how you think about coding.