If you’re using xkb
, try this guide. Of course, backup any system files before modifying them, and just to be sure, add a 2nd keyboard layout as backup and know how to switch between them to have a fallback if you corrupt the primary one.
There might be TUI or GUI tools too, probably way more convenient for a one-off change on a single PC.
Imagine if Intel snapped and disabled Stephen Hawking’s wheelchair and computer, and he needed to pay for a new one with a different voice, absolutely helpless without it.