That sounds pretty similar to how I have my network setup:

• PiHole has conditional forwarding configured (true,192.168.0.0/24,192.168.1.1,lan note: .lan is optional here, I uss it for my internal TLD) to get device names from router
• PiHole uses Unifi as the upstream DNS and DHCP
• Unifi uses cloudflare as the upstream DNS
• Unifi hands out the PiHole as the DNS via DHCP config

That way I get stats in all the places and can use Unifi for DHCP.

That’s kind of awesome! I have a bunch of home lab stuff, but have been putting off buying a domain (I was a broke college student when I started my lab and half the point was avoiding recurring costs- plus I already run the DNS, as far as the WAN is concerned, I have whatever domain I want). My loose plan was to stand up a certificate authority and push the root public key out with active directory, but being able to certify things against Let’s Encrypt might make things significantly easier.