Adding a Static DNS Entry into the Ubiquiti UniFi Dream Machine Pro

JUNE 2023 UPDATE: You can now enter static DNS entries under the “Client” settings in UniFi OS v3.0.20 (or above).

Leaving Original Post Below for Reference:

Something I ran into today on my home network, with the Ubiquiti UniFi Dream Machine Pro, is that you can’t add a static DNS entry into the Dream Machine Pro, which totally stinks.. I had a VM that I setup which I needed to refer to by DNS name, but couldn’t.

It seems many others have been asking for this feature as well:
https://community.ui.com/questions/Feature-requestRepost-UniFi-Dream-Machine-Pro-add-[…]in-DNS-forwarder/e525171f-0aa5-46b6-b2af-6ad2d966e899

Thankfully a user on the above thread posted a possible workaround with a script calling the API: https://github.com/evaneaston/udm-host-records — I have since implemented this script on the Dream Machine Pro and it worked wonderfully!