Technical reference on Alpine User Handbook: https://docs.alpinelinux.org/user-handbook/0.1a/Installing/manual.html#:~:text=One%20easy%20way%20to%20select,it%20into%20a%20different%20directory.
After logged in you can change your keyboard layout using the command below:
- setup-keymap
The command setup-keymap start the settings to change your keyboard layout in Alpine Linux.
The first step is to select the layout, and for last step you select the variant.