Not merge the values of the keys.
This is one of the biggest limatations of <<: *anchor: it overwrites values of keys. It's too heavy-handed and therefore of limited use. You can only use it if you don't mind keys getting overwritten (such as if you are going to overwrite the keys below the <<:.).
It should be every elected official’s goal to help find ways to free employers from dictatorial rules that hinder their growth. ObamaCare does the opposite, and that’s why the self-insurance option needs to be preserved.
Blocking users from installing unsigned extensions without offering a cross-platform way to disable the feature brings minimal security benefits while concentrating power in the hands of the browser vendor. Not even Google is this heavy-handed, they allow installing local extensions in Chrome after users enable an option, although a warning is shown on browser restarts about the presence of external extensions, which can be dismissed.