vasilisp

d-i passwd/root-login boolean false
d-i base-installer/install-recommends boolean false
d-i apt-setup/non-free boolean true
d-i apt-setup/contrib boolean true
d-i popularity-contest/participate boolean false
d-i preseed/late_command string in-target apt-get install --purge -y sysvinit-core

vasilisp

#!/bin/sh

constraint () { echo -n $@ ' '; }

not () { echo -n '! '; }

installed () { constraint '~i'; }

auto () { constraint '~M'; }