how to install Nik Collection as an apple photo plugin ?

I use Appe Photo a lot and I would like to be able to access my Nik Collection directly in the software without having to export the photo.when I go to manage applications in photo the Nikcollection plugins cannot be selected. I am macOS Ventura. Thanks for your help

Welcome to the forum @bernard

We can use DPR with Apple’s Photos app like described in here:

So far, Apple has no interface that allows the use of DPR as a plugin to DxO can’t do much about that, no matter how we vote for your request by clicking on the blue “Vote” button…

I know nothing about Apple Photo. Is it a RAW processor? If so then your RAW files will have to be exported anyway as Nik Collection only works on TIFFs or JPGs.