File viewer (PDF, EPUB, MP4, etc.) for a start. Right now it feels more like a barebone filesystem with a GUI than anything else. For photos IMO you shouldn't reinvent the wheel but integrate something such as Immich.
Thanks! I personally rather download those files and handle them directly in my file system. PDFs, music files, and videos are shown directly in the browser when I click them, so I didn't even consider that as a necessity.
Immich is really powerful for Photos, but I don't need all those features and can find what I need with my year/month file structure, though. I'm looking for simplicity, here, which I think there are less options for, if that makes sense.