

I’ve tried both Unraid and TrueNAS. While I greatly prefer TrueNAS, Unraid is much easier to set up and get going for beginners. It’s been a while since I’ve set up TrueNAS from scratch, but last I tried, it wasn’t a very beginner friendly experience. If you weren’t already familiar with ZFS, you were in for a pretty difficult time.
There is an iOS/macOS app called “Pi-hole Remote” that can manage multiple PiHole instances at once. I use that because it will make changes on both instances at once for me.
Other than that, I log in to each device and copy paste.