Joining a new company / team there is always a lot of new items to do, install and familiarise yourself. Below is a working list:
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
Preferred over OSX Mail
Note - most of these are not order dependant - except for Homebrew. Install this first, then add the balance.
I'll add to this list over time as I discover new elements to working here.