Hopefully you change the recommended tools based on the OS. (i.e. OSX would be slightly different from linux for certain commands). And focus on doing as much as possible from the command line?
I tried to highlight examples that are available on Mac, Linux, and Windows through the package managers, (homebrew, apt, chocolatey) and at least provided system-specific installation lines for each based on those. It is highly command-line and pure-text centric.
