password-store: nerd snipe quagmire

I've been using Apple's Passwords.app, but password-store (pass) seemed very cool, and since I already did the heavy-lifting of setting up the YubiKey, I decided to migrate.

Another reason that convinced me: Emacs supports pass as an auth-source natively! Here is a sample:

(auth-source-pass-enable)

(auth-source-pass-get 'secret "foo/bar")

You can also use password-store.el to interact with pass via Emacs.