A great first step, if you haven't done it yet, is to save your configuration files in your home directory in a dotfiles git repo (here's mine for example). While you may need to do a couple of steps to get ready to pull it down, it can shave a bunch of time getting things like common tool and editor configs set up quickly.
I did just start doing that, also handy for keeping my org mode files in sync. I am trying to learn Puppet as well, but that's going to take some time!
I do the same. Also, have a separate repo for my IDE (PHPStorm) settings.
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