Rrrrrun
Use it to fast: set user password, install git, zsh, nginx, oh-my-zsh, libgmp-dev for Nokogiri gem with rvm, rvm with last stable ruby.
I mean taht you already have sudoers user and Initial server setup (most cloud provider already have this in images).
Choise one of this: curl or wget, depends waht you have in your system. And copy & paste in you terminal.
via curl:
sh -c "$(curl -fsSL https://raw.githubusercontent.com/frontandstart/rrun/master/rrun.sh)"via wget:
sh -c "$(wget https://raw.githubusercontent.com/frontandstart/rrun/master/rrun.sh -O -)"