Iris is pragmatic and does not impose a certain workflow on you. Just point the app at your photo library on disk, and Iris will take it from there. We also don’t limit you to a single “system” library that can easily fill up your laptop and force you to decide which photos to leave behind or trust to the cloud.
I urge you to read the entire Iris page. I was nodding my head the entire read. I've signed up. I want in. Given how I manage my photo library currently I can try Iris without skipping a beat.
/via Christian McGregor.