Using Systemd to Manage User Sessions

WARNING: This process doesn't work any more. Systemd user sessions are still experimental and volatile and this method no longer works.

If you haven't heard of systemd you should take a look. Basically it is a new /sbin/init process (PID 1). But systemd doesn't stop there, it can also be run as a user to manage arbitrary processes. This article is about replacing the session-manager that comes with your desktop environment (gnome-session, xfce4-session...) with a full-featured process manager.