Trezor support for Zcash shielded transactions

Are you able to provide any more detail on the second point about needing lots of resources to make the completed firmware usable in production? I think we could learn a lot from your experience to make our protocol and SDKs more usable.

Is that referring to the need to implement Zcash’s shielded light wallet protocol in Trezor’s desktop app to work with the hardware wallet? Do you have any ideas for things we could do to reduce those costs? Thanks!