I bought a M2 Mac Mini, 16GB/256GB. Have 55K photos and 380 video on iCloud. I'd like to 1, use my 2 TB Samsung T7 as my primary home for PHOTOS LIBRARY. And 2, get all my original photos in there. Going forward, what I'd like to/need to do is have any photos I put into "PHOTOS" be stored on the external drive and have it backed up with iCloud. How the heck do I this?