Install NextDNS on OPNsense

[ChaoscripT]

Hi,
I looking for good guide of how to install NextDNS on OPNsense, I use version 24.7.
I prefer that it will be my only NextDNS instead of also use Unbound, or it's better to split it?
Local DNS - Unbound
External DNS - NextDNS

What do you think?
Someone have guide for it?
I also want to see machine names on NextDNS