[Feature Request] Calibre Support

[seniorm0ment]

Would like to see support to login to a Calibre server.
To my knowledge there are no other FLOSS apps that do this.

I do however understand if this would go against any principles of Orion being a lightweight reader. An alternative idea could be to offer a secondary build with "Online" functionality. Keeping it FLOSS and overall lightweight still, as well as pushed to F-Droid.
The user could then choose which version of the app they want.
If not, understandable just throwing that idea out there.