[Android] New CC user - Local Network Access

Hi,

Apologies if this has been asked / answered before.

I have my Calibre Library stored on a NAS device on my local network.
I don't generally have Calibre running on a PC, so ideally I would like to be able to use CC to access the Library directly on the NAS.
It looks like the Cloud offering should be the one to use, but it has no SMB or other local network options.

Have I missed an option, or am I out of luck?

Regards,
Ian