[Feature Request] OPDS catalog integration

[davafons]

Hi! Loving the app, but right now the biggest pain is having to redownload my ebooks every time I move to another device/browser.

I was wondering if it would be worth adding integration with ODPS catalogs. Calibre exposes an OPDS server by default, so this way I could just connect to my Calibre server (where I store all my ebooks) and grab any book I need.

[cademcniven]

This would also be a game changer for me. Something like this might be worth looking into https://github.com/NYPL-Simplified/opds-web-client

[radonmiser]

This would also be a game changer for me too, I'm starting to have too many books to manage effectively with ttsu, would be great if I can just connect to calibre.