Comment by mkayokay

How are commands handled, that require user input? E.g. password for sudo in your example:

  sshsync group web-servers "sudo systemctl restart nginx"

I like that you included a demo in the README, but it is too long for a gif, as I can't pause/rewind/forward. So splitting into multiple short gifs or converting into a video (if GitHub supports them) could improve the experience.