Debian 7.0 (Wheezy) can be configured to use systemd.
# apt-get install systemd
# less /usr/share/doc/systemd/README.Debian
# nano /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT=”quiet init=/bin/systemd”
# update-grub && reboot
That’s it!
Now experiment with
# man systemd
# systemctl
# systemd-journalctl
# systemctl reboot
…