more documentation...

docs/manual/user/advanced/DESKTOP.adoc

@@ -0,0 +1,30 @@
+=== Starting a Desktop Environment
+You can install any desktop environment or window manager you would like via <<changing_the_installed_software,package lists>>! From there, it's simply a matter of setting the correct Systemd unit to start automatically. The https://wiki.archlinux.org/index.php/[Arch wiki^] has a lot of useful information here. As an example, I'll include http://lxde.org/[LXDE^] instructions here.
+
+Simply create a symlink for the target. In the `<basedir>/overlay/etc/systemd/system/` directory:
+
+ ln -s /usr/lib/systemd/system/lxdm.service display-manager.service
+
+==== Autologin (LXDE)
+Many desktop environments even offer an automatic login feature directly through the desktop manager (LXDM, in LXDE's case).
+
+Again, using LXDE as an example, create a file at `<basedir>/overlay/etc/lxdm/lxdm.conf`:
+
+ [base]
+ autologin=bdisk
+ greeter=/usr/lib/lxdm/lxdm-greeter-gtk
+ [server]
+ arg=/usr/bin/X -background vt1
+ [display]
+ gtk_theme=Adwaita
+ bottom_pane=1
+ lang=1
+ keyboard=0
+ theme=Industrial
+ [input]
+ [userlist]
+ disable=0
+ white=
+ black=
+
+LXDE will then automatically log in with the user `bdisk` (note the second line, right under `[base]`) whenever started.