Pihole as Primary DNS with Active Directory

[Bucking_Horn]

@chrislph

but this includes some specific steps, files

If that's referring to a few lines in some /etc/dnsmasq.d/02-custom.conf:
That may not be necessary, as it could be achieved by correctly configuring Pi-hole's Conditional Forwarding. I emphasise correctly here, as it would seem to me that okynnor's original attempt was flawed:

@Bucking_Horn

But your actual CF configuration looks wrong:

@okynnor

LocalNetwork IN: 192.168.1.0/24
domain: myhomedomain.home
address of your DHCP server: 192.168.1.1

I guess that's your router on 192.168.1.1?
In your case, that should be your AD's IP address.

So before venturing into custom configs, I'd like to resuggest trying to replace 192.168.1.1 by the respective AD's IP address in Pi-hole's Conditional Forwarding UI.