Homebrew

The first important tool is HomeBrew (no, it's not teaching you how to make some alcohol at home). It is a fantastic addition to the shell that allows us to execute and install packages very easily.

If you go to https://brew.sh, you can copy and paste into Terminal and away you go, with very simple commands, such as the following:

brew install curl

What the preceding command will do is to download and install the curl package for us. This is just an example of what it does.