Lesson 01
Show hidden files
They are hidden because Apple would rather you did not poke them. We are going to look anyway.
⌘⇧.
Toggles the dotfiles and system folders the Mac hides by default. You will need it the first time you touch a config file, and it toggles straight back off.
Do this now
In your home folder, press ⌘⇧. and count how many things appear that you had never seen. Press it again to hide them.