You can make bash understand ergoemacs-mode keys by creating an appropriate .inputrc and placing it in your home-directory.

When ergoemacs-mode is enabled, this can be done easily by typing

Alt+a ergoemacs-bash

This should also be available in the ergoemacs menu.

In windows some of the ergoemacs keys are implemented system wide by assuming apps follow the CUA-style keys like CTRL-f for find, CTRL-h for replace. This also optionally implements:

• CapsLock as Menu in emacs

Ergoemacs for Karabiner-Elements implements system-wide support for levels 1 and 2 of Ergoemacs (plus some additional keys from level 3).