Yeah, that's what I thought... but using it for 6 months now they have been pretty reliable regarding upgrades and new features.
The features I appreciate the most are:
- Auto-Synchronisation on Android AND iOS (this is hard to find in any other app)
- Photo sharing (Accounts can have partners to share all their photos with - ideal for me and my wife)
- Deduplication
- The Web Interface
The feature I miss the most is tags[1].
Once the app stopped working but there was a clear message on the repository / homepage that the server has to be upgraded. Since it is docker based, it was very easy to upgrade without losing any data. Same applies for backup...
So if you ask me, there is no need to worry - but I would not use it as only option to store my photos and it does not replace an (off-site)-backup.