In terms of getting started quickly I ended up using a pihole deployment with extra lists, as described in https://www.youtube.com/watch?v=qNCzSA2bs9I
In this solution you get ad-block as "unnecessary" extra, but maybe it is more people than me who don't mind.
Start by installing pihole on some machine as described here https://github.com/pi-hole/pi-hole/#one-step-automated-install and get it up and running.
When you're finished with getting pihole to work, extend the pihole configuration as below (example on a debian system, with a .lan domain):
Create a file /etc/dnsmasq.d/02-lan.conf with content
addn-hosts=/etc/pihole/lan.list Then create another file /etc/pihole/lan.list containing your local mappings, such as
192.168.1.100 nas.lan 192.168.1.101 somethingelse.lan if you e.g. have a nas sitting at 192.168.1.100.
Conclude by restarting the piholes dns service using sudo pihole restartdns