I’ve seen a lot of recommends for Immich on here, so I have an idea what the answer here is going to be, but I’m looking for some comparisons between it and Photoprism I’m currently using Synology Photos, and I think my biggest issue is it’s lack of metadata management. I’ve gotten around that with MetaImage and NeoFinder. I’m considering moving to something not tied to the Synology environment.
Immich does have a neat cli tool to upload pictures. It doesn’t even upload duplicates which allowed me to finally organize my library. But I never tried PhotoPrism though I was close to choosing it over Immich.