Yes, it's true for systemd too. Actually, systemd is much better at that sort of functionality. It's not limited to task-level dependencies like Upstart is; it can launch a service when, for instance, a file is created, or a socket is opened. In addition to ensuring that everything the service needs actually exists at launch time, it also allows you to do some neat things with late launching. For instance, you can set it up so that sshd isn't constantly running, but instead only runs when somebody connects to the external socket.
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