I wish this viewpoint were more common/well-known. Somehow people get it in their head that people are tinkering with all their stuff constantly and never working, but just as TFA says, you'll have configs that haven't changed in over 6 months and are customized to your liking so you can work more efficiently and comfortably. Get a new PC? rsync configs over, or git clone your dotfiles repo or whatever. The work you put in doesn't disappear.