Where to put daemontools startup in systemd Jessie?

[Steve Litt <slitt@troubleshooters.com>]

Hi all,

Right now I have the following at the bottom of my /etc/rc.local in
Wheezy:

csh -cf '/command/svscanboot &'

How would I accomplish that same thing in systemd-equipped Jessie? Note
that svscanboot is a Daemontools executable installed by make;make
install, not a package, so I'll personally need to do what's necessary
to run it at boot.

Thanks,

SteveT

Steve Litt                *  http://www.troubleshooters.com/
Troubleshooting Training  *  Human Performance