This is the LANDNS stuff I use.
To install, copy tellem and tellme to /usr/bin/ and then go there and
chmod them 6711 (less may work, but this always does).
Then setup the systemd stuff, for which, see below:

You now need to copy *.service files to /lib/systemd/system/ and then sudo systemctl enable "servicename"
You used to be able to put them into /etc/systemd/system/multi-user.target.wants/ but now only symbolic links that are there (And it seems a few other places systemctl puts them) work.
Yet another change from last week or so.

