- Paste the contents of `rule[-sw].xml` to either `/usr/share/X11/xkb/rules/evdev.xml` or `/usr/share/X11/xkb/rules/evdev.extras.xml`, this between the tags `<layoutList>` and `</layoutList>` (root required).
- Both the Classic (files without '-sw') and SW layouts (files with '-sw') can be installed alongside each other. The user interface will distinguish them as `UltimateKEYS` and `UltimateKEYS SW`.
- Paste the contents of `rule[-sw].xml` to either `/usr/share/X11/xkb/rules/evdev.xml` or `/usr/share/X11/xkb/rules/evdev.extras.xml`, this between the tags `<layoutList>` and `</layoutList>` (root required).
- Both the Classic (files without '-sw') and SW layouts (files with '-sw') can be installed alongside each other. The user interface will distinguish them as `UltimateKEYS` and `UltimateKEYS SW`.