emacs-challenge.md

How to undo M-x global-set-key M-x ignore:

1. Press F10 to open the menu. (Your terminal emulator might capture that key to open its own menu instead. You’ll have to find a way around that.)
2. Navigate to the Buffers menu (3× right arrow key).
3. Select the *scratch* buffer.
4. In the *scratch* buffer, enter the following command:

   (global-set-key "\M-x" 'execute-extended-command)

5. Press C-j to run the command.