usage: ./bootstrap-macOS.sh [-h] [-d]
Bootstrap a macOS instance with:
* Xcode command line developer tools
* Homebrew - package manager
* Python - from Homebrew
* virtualenv - from pip
* SSH key - from ssh-keygen
* GitHub public key - with SSH key
* conduit - configuration manager
If any already exist they will not be reinstalled.
optional arguments:
-h show this help message and exit
-d dry run, don't actuall install anything
