It also has mobile apps to do the backup and as a frond end on the phone. And what I really like is you can mount in your existing external libraries without copying all the pictures in and they will just be integrated automatically.
Yes, I tried Immich but it's basically a second job, no thanks. Photoprism is very good, but would need something like Syncthing to auto upload. So I ended up going with Libre Photo. It's nowhere near as powerful as Immich in terms of features, but for my over 500K photos and almost 50K videos, works like a charm in ProxMox with the "UhuruPhotos" Android app.
I love that they clearly say that. IMO they should keep that notice around even later on.
Far too many people spin up some solution for photos or files, either selfhosted or some paid service, and use it as their only storage. Then they're surprised when data loss happens.
+1 for Immich, I tried photoprism and had a lot of trouble importing and organizing an existing library. Immich works much more intuitively and had all the features I needed.
This is a pretty accurate summary from my experience. The only thing I'd add is that (from what I've read at least) some form of 'smart' album functionality is high on the priority list and shouldn't be too much further down the line. It may be a more advanced customizable logic type of solution (again from what I've read) but the functionality of putting person(s) 'x' into album(s) 'y' (or similar) should be achievable.
As someone who has and still used photoprism for over two years and donated heavily...steer clear. Their update cycle is slow and the things they keep adding don't seem helpful. Still no multi-user support. If you don't upload new photos via photoprism using WebDAV you have to make your own scripts to watch for changes and refresh which took a lot of time for me to setup.
I'm just going to start using Nextcloud and Memories app going forward.
So you have photoprism pointed to a folder but you push photos into the folder witb syncthing. How do you trigger the re-index or its somehow automatic? I run my photoprism in docker and I always had to manually trigger the index after changes to the folder.