doc: Add tutorial section on how to use the xfconf binding

doc/tutorials/xfconf.md

@@ -55,4 +55,66 @@ kdb umount /sw/xfce4/thunar/
 
 ## Replacing Xfconf with Elektra
 
+It is also possible to replace Xfconf entirely with Elektra.
+The Xfconf binding in Elektra implements the Xfconf API in such a way that it can be used as a drop-in replacement.
+
+### Setup
+
+To start, the Xfconf library must be replaced with the Xfconf binding.
+Replacing the system libraries may require root privileges.
+
+```shell
+# Use Elektra instead of Xfconf system-wide
+kdb xfconf-system-lib-replace
+
+# Use Elektra instead of Xfconf only for the current user
+kdb xfconf-user-lib replace
+
+# When replacing only the users library, either restart the session or run
+source ~/.xprofile
+```
+
+Note that a system upgrade may reset the system library replacement.
+
+All applications that normally use Xfconf will now use Elektra instead.
+This can be verified using both `xfconf-query` and `kdb`.
+
+```shell
+# Set an Xfconf property with Elektra
+kdb set system:/sw/org/xfce/xfconf/test/hello world
+#> Create a new key system:/sw/org/xfce/xfconf/test/hello with string "world"
+
+# Verify it with Xfconf
+xfconf-query -c test -p hello
+#> world
+```
+
+### Run Xfce Using Elektra
+
+The Xfce desktop provides some default settings which are loaded on first login.
+However, if you are using Elektra instead of Xfconf, you will need to load these defaults manually.
+This can be done entirely using `kdb`.
+
+```shell
+kdb xfconf-populate
+```
+
+Once this is done, an Xfce session can be started either from the login manager or manually.
+From this point on, the Xfce desktop will read and write to the Elektra database.
+However, Xfce also uses some properties that are not stored in Xfconf.
+These properties will not work properly.
+An example of such a property is the Gtk theme.
+
+### Reverting the Libraries
+
+If you want to stop using Elektra instead of Xfconf, you have to choose the right option depending on how you did the setup.
+
+If you did the setup using the system libraries, it is sufficient to run it:
+
+```shell
+kdb xfconf-system-lib-restore
+```
+
+If you have chosen the user only way, you will need to edit your `~/.xprofile` file and remove the statements where the `LD_*` variables contain anything related to Xfconf.
+
 ## Data-Types Used in Xfconf