This is a library designed to read a V2 HSL Travel Card. It's heavily based on the HSL-provided, and an evolution of my V1, C#-based version of the library, HSLTravelSharp.
TODO, publish this sucker to crates.io.
> cargo build
That's it!
Cross-compilation should work without too much issue, but requires the standard tools for cross-compiling to your target triple. Android requires the NDK and a ~/.cargo/config setup for ar and a linker, for example.