Setting Keyboard Layout

To set your system keyboard layout (keymap), use the following Butane config to write to /etc/vconsole.conf:

variant: fcos
version: 0.15.0
storage:
  files:
    - path: /etc/vconsole.conf
      mode: 0644
      contents:
        inline: KEYMAP=de

Once booted, you can also verify that the desired keymap has been set using localectl.