I didn't follow the systemd vs. sysv war closely, and for a long time was content that I barely managed to remember the new syntax for starting and stopping services when the distributions I used switched to systemd.

In the last couple of days, I became a fan. Not for the many reasons which anyone can look up. But for systemd-nspawn, an awesome tool for spawning lightweight containers.

For instance, you can boot an ephemeral (tmpfs) copy of your system with systemd-nspawn -D / -xb. Several more examples are listed here: https://www.freedesktop.org/software/systemd/man/systemd-nsp...