[Feature Request] SFTP

[weewoo-meow]

I am looking a ncurses SFTP client and it would be awesome if this software could access to remote servers.

[FedeDP]

Hi @miny1997 !

Unfortunately lately i am quite busy following my other side projects, and i have no time to develop ncursesFM anymore.
Anyway, I am strongly willing to review and accept any PR :)