[pampa]

I did use emacs before i switched to vim 15 years ago. My memory is hazy, but i am pretty sure Ctrl-O to save a file and Ctrl-X to exit are not emacs bindings. I was as confused with nano when i used emacs as i am now.

[lazyant]

yes, some bindings may be different for meta-control like you are pointing out (the editing ones are Emacs)