One of my main thoughts was documenting things I have found I had to do to with certain projects to get it the way I want, like homebrew packages I need to install and what to setup for if and when I wipe my computer and start fresh or get a new computer and want to set it up like I am used to.
I have had many times I forget little things I had to do and end up going through the whole spiel of getting it to work correctly.