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1 year agoHave you checked out Immich?
It doesn’t have photo editing but it’s got apps w / backup for your mobile devices and a web interface. Multiple album creation with sharing outside the app etc. Doesn’t hit everything on your list but it’s close and it’s been awesome for me so far.
When you import your define a directory structure of your choosing. All the files are accessible in their regular format.
If you’re talking about the ability to index another directory they are experimenting with a read only import (as opposed to upload) now.