Some more pains of weening off of Dropbox is that my Emacs initialization is
sensitive to dependencies and missing require statements. I'm still debugging
everything.
Some modules called `exwm-input-set-key` before the `window-manager` module
loaded, which itself requires EXWM. This broke initialization. To get around
this I could've called `(require 'exwm)` in each of those modules. I chose to
define a `keybindings.el` module to whitelist some of my EXWM keybindings. I'm
not sure if this is the best way forward, but it is *some* way forward.