Neofetch is highly customizable through the use of commandline flags or the user config file. There are over 50 config options to mess around with and there's the print_info() function and friends which let you add your own custom info.
Neofetch can be used on any OS that has BASH, it's just a matter of adding support. If your OS/Distro isn't in the list below, feel free to open an issue on the repo and I'll gladly add support. Neofetch currently supports Linux, MacOS, iOS, BSD, Solaris, Android, Haiku, GNU Hurd, MINIX, AIX, and Windows (Cygwin/MSYS2/Windows 10 Linux subsystem).
The changes on offer in Neofetch 3.0 are fairly substantive, and range from additional operating system support to a new system-wide config installed to /etc/neofetch/config, including a slate of bug fixes, tweaks and improvements in-between.
Opening terminal (Ctrl+Alt+T) and running the command:
|$ sudo add-apt-repository ppa:dawidd0811/neofetch
$ sudo apt-get update
$ sudo apt-get install neofetch
Check version Neofetch :
|$ neofetch --version|