+* man: clarify that --system works only for pid == 1
+
* oneshot services which do not remain: 'exited' instead of 'dead'?
it should be visible in 'systemctl' that they have been run
* merge CK
+* start getty 2-6 only when actual vt switch happens
+ (same model as socket on-demand activation)
+
* ask-password tty agent, ask-password plymouth agent
* ask-password tty timeout