New to libdivecomputer. Where do I begin?

[Ryan January]

Hello,
I've been a libdivecomputer user (through subsurface) for a number of years.  I'm in possession of a dive computer that is undergoing user testing now.  I've been looking for an area I may be able to contribute to for a few years and feel this may be an interesting opportunity.  My biggest issue is that I'm not sure where to begin the development process. 
The computer exposes itself as a USB mass storage device.  Dive logs are located in a known folder, and are stored in a file format which is well documented.  Considering I'm not seeing any currently supported computers exposed as storage devices, is this support something that would even be desired and/or possible?  As I understand it there is an IO refactoring that's potentially in the works.  If desired, is now a bad time to start this process?

Thank you,
Ryan