EConfiguring Pi-Hole with pfSense for my home network.
Add the Pi-Hole IP address to pfSense > Services > DHCP Server > DNS Servers.
Do not enable DNS Forwarder.
Do not enable DNS Resolver.
Do not add a DNS entry in the System > General Setup > DNS Server Settings.
I am running Pi-Hole on a Raspberry Pi 3 in a case with heat syncs and a fan to keep it cooled. You can find these on Amazon.