- supported commands:
- mmgen-addrgen
- mmgen-keygen (decrypt encrypted key-addr files with `mmgen-tool decrypt`)
- mmgen-tool addrfile_chksum, keyaddrfile_chksum
- ETH and ETC keys are distinct, so users needn't worry about key reuse
- Only Zcash-t addresses supported for now (but z-addresses coming soon)
- Test the new functionality with `scripts/test-release.sh -Pn master alts`
- once set up, requires no monitor or keyboard input; just insert USB stick,
wait for signing to complete and remove
- LED status signaling on Raspberry Pi and Orange Pi
