What does HackerNews think of emacs-everywhere?
System-wide popup Emacs windows for quick edits
Language:
Emacs Lisp
#27
in
Emacs
Alternatively you might want to try Emacs everywhere[1].
You can do this with Emacs Evil Mode using the emacs-everywhere package.
In the meantime, there's https://github.com/tecosaur/emacs-everywhere.