+## MSKLC integration (Windows)
+
+Two MSKLC source files are available for integration on Windows OSes (although not recommended on Windows 10 and/or in a production environment).
+
+## XKB integration (Linux)
+
+Experimental support for GNU/Linux via XKB integration (X11) : see the 'linux-xkb' folder in this repository.
+
+Follow these steps for experimental integration (at your own risk!) :
+
+- Download/Unpack the files `ultkeys`, `ultkeys-sw`, `rule.xml` and `rule-sw.xml` from the 'linux-xkb' folder.
+- Copy `ultkeys[-sw]` to `/usr/share/X11/xkb/symbols` (root required).
+- 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`.
+
+## Enjoy and have fun ! - Veel plezier ! ☺
+
+Pieter Degroote