I use pihole and added a custom config to dnsmasq to resolve some domains to a local IP. This is then known as split DNS. Network devices inside my network using pihole as a dns server and gets the local ip.

my_custom_dnsmaq.conf

address=/myservice.example.com/192.168.2.5

I use the normal image https://hub.docker.com/_/nextcloud/ and have that running paired with traefik as reverse proxy and no issues.