daemontools vs systemd

Here's the bare minimum to get daemontools running under systemd

cat <<CNF > /usr/lib/systemd/system/daemontools.service
[Unit]
Description=DJB daemontools
After=network.target

[Service]
ExecStart=/var/daemontools/command/svscanboot
Restart=always

[Install]
WantedBy=multi-user.target
CNF
systemctl enable daemontools
systemctl start daemontools

Note that the default daemontools install would put the executable in /command/svscanboot.